A cup of water is warmed from 29 °C to 97 °C. What is the difference between these two temperatures, in kelvins

Answers

Answer 1

Answer:

I believe it is 68

Explanation:

to convert Celsius to kelvins you must add it to 273.15 for example 29 + 273.15 is 302.15

im so very sorry if im wrong.


Related Questions

What is the primary purpose of a rate law?
Oto determine if a chemical reaction will be exothermic or endothermic
O to determine the amount of product that is formed from the concentration of reactants
O to show the relationship between the concentration of reactants and the reaction rate
O to show a relationship between the amounts of gas that can dissolve into a liquid

Answers

The rate law uses the molar concentrations of reactants to determine the reaction rate. Hence, option (C) is the correct option

What is rate law ?

A rate law shows how the rate of a chemical reaction depends on reactant concentration.

For a reaction such as aA → products, the rate law generally has the form

rate = k[A]ⁿ,

where,

k is a proportionality constant called the rate constantn is the order of the reaction with respect to A.

Typically, increased concentrations of reactants increases the speed of the reaction, because there are more molecules colliding and reacting with each other.

Hence , The rate law uses the molar concentrations of reactants to determine the reaction rate. Hence, option (C) is the correct option

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Design a controlled experiment to test your hypothesis. A controlled experiment is one that only tests one variable. All other variables must remain the same. Make a drawing below that shows how you will set up your experiment. Then, write a description of the one factor that will vary and the two factors that will remain the same.

Answers

The problem is not found here but a possible experiment might be to measure the amount of product from a chemical reaction.

What is an experiment?

An experiment is a procedure used to verify a working hypothesis obtained by applying the scientific method.

Experimental variables that can be tested include, for example, temperature, amount of product from a chemical reaction, etc.

In conclusion, the problem is not found here but a possible experiment might be to measure the amount of product from a chemical reaction.

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Which of the following is a simple design model that uses the concepts define, optimize, and develop solutions iteratively and in any order?

A. Infused Design
B. FORFLOW
C. Munich Procedural Model
D. Next Generation Design Model

Answers

The Munich Procedural Model is a simple design model that uses the concepts define, optimize, and develop solutions iteratively and in any order. C

What is the Munich procedural design?

The Munich procedural model is a design that illustrates several opportunities regarding the order in which design process and stages beyond mere iteration should take.

A procedural model commonly used for development is the V-model.

Hence, the Munich Procedural Model is a simple design model that uses the concepts define, optimize, and develop solutions iteratively and in any order.

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The average atomic mass of carbon is 12.01 amu. Based on the atomic
masses of the two isotopes of carbon, how do the relative abundances of the
isotopes compare?
Isotope
Atomic mass (amu)
C-12
12.000
C-13
13.003
OA. There is a slightly larger percentage of C-12 than C-13.
OB. There is a very large percentage of C-12.
OC. There is a very small percentage of C-12.
OD. They are about the same.

Answers

Answer: There is a very large percentage of C-12.

Explanation:

The atomic mass is must closer to that of C-12 than of C-13, meaning that there is a much larger percentage of C-12.

How do models help scientists predict the polarity of molecules?

This is from the Molecular Structure Lab Report: Determining Polarity

Answers

In conclusion, modeling is very useful for predicting molecular polarity because chemical bonds among different atoms are generated to equal electrical charges.

What is molecular polarity?

Molecular polarity refers to the unequal distribution of electrical charges in the atoms of a molecule.

This unequal distribution leads to the generation of molecular poles (positive and negative) at the ends of the chemical bonds.

In conclusion, modeling is very useful for predicting molecular polarity because chemical bonds among different atoms are generated to equal electrical charges.

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If a snail crawls at a rate of 228.16cm/s, what is its speed in miles per hour?

Answers

If a snail crawls at a rate of 228.16cm/s, Its speed in miles per hour will 5.10 miles/hour

What is speed ?

The rate at which someone or something moves or operates or is able to move or operate.

Snail covers distance in 1 seconds = 228.16 cm

It covers in 60 seconds (1 min) = 228.16 cm x 60 = 6mtrs

It covers in 60 minutes (1 hour) = 228.16 cm x 60 x 60 = 821376 cm

Now, lets convert cm to miles :

As,                    1 cm = 6.21371 x 10⁻⁶ miles

Thus,     821376 cm = 5.10 miles

hence, If a snail crawls at a rate of 228.16cm/s, Its speed in miles per hour will 5.10 miles/hour

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Explain the term 'end point'?
What do you mean by a 1.0 M solution?

Answers

Answer:

According to me end point is the end of a reaction

What are you meaning

Write and balance molecular equations for the following reactions between aqueous solutions. You will need to decide on the formulas and phases of the products in each of the cases.

An aqueous solution of barium hydroxide is mixed with an aqueous solution of sulfuric acid.

Answers

Answer:

Ba(OH)2(aq) + H2SO4(aq) ----> BaSO4(s) + 2H2O(l)

What is the first step in the scientific process?
O develop a test
O make a prediction about what may be happening
O observe a natural phenomenon
O generate a scientific hypothesis
O check results by repeating work

Answers

[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]

[tex]\qquad \texttt {Observe a natural phenomenon}[/tex]

____________________________________

[tex] \large \tt Explanation \: : [/tex]

At first scientists/researchers observe a natural phenomenon. after enough observation, they make predictions why that phenomenon is happening and the reasons that lead to that particular phenomenon. then they generate scientific hypothesis to explain that phenomenon and after getting enough data they develop tests and perform experiments. And check the results they get and at last based on the results they conclude what actually is happening.

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

-You wish to make a 0.203 M hydrochloric acid solution from a stock solution of 6.00 M hydrochloric acid. How much concentrated acid must you add to obtain a total volume of 175 mL of the dilute solution?

mL

-In the laboratory, a student dilutes 20.3 mL of a 8.20 M hydrochloric acid solution to a total volume of 200.0 mL. What is the concentration of the diluted solution?

Concentration =
M
-How many milliliters of 9.36 M perchloric acid solution should be used to prepare 1.50 L of 0.700 M ?

mL

Answers

For all three questions, we will use the fact that

molarity = (moles of solute)/(liters of solution)

1) For 175 mL of solution at 0.203 M, this means that:

0.203 = (moles of solute)/0.175moles of solute = 0.035523 mol

Considering the hydrochloric acid solution, if we have 0.035523 mol, then:

6.00 = 0.035523/(liters of solution)liters of solution = 0.035523/6.00 = 0.0059205 = 5.92 mL (to 3 sf)

2) If there is 20.3 mL = 0.0203 L, then:

8.20 = (moles of solute)/0.0203moles of solute = 0.16646 mol

This means that the molarity of the diluted solution is:

0.16646/(0.200) = 0.832 M (to 3 sf)

3) If we need 1.50 L of 0.700 M solution, then:

0.700 = (moles of solute)/1.50moles of solute = 1.05 mol

Considering the 9.36 M acid solution, from which we need 1.05 mol of perchloric acid from,

9.36 = 1.05/(liters of solution)liters of solution = 1.05/9.36, which is 0.11217948717949 L, or 112 mL (to 3 sf)

What are other portals of entry besides needlesticks?

Answers

Answer:

Inhalation (via the respiratory tract)Absorption (via mucous membranes such as the eyes) Ingestion (via the gastrointestinal tract)

Explanation:

The opening where an infectious disease enters the host's body such as mucus membranes, open wounds, or tubes inserted in body cavities like urinary catheters or feeding tubes.

Engineers are starting on a new project to develop technology. Which of these
statements does not describe something they might do at the very beginning
of the process?
OA. Look at the problems society is facing.
OB. Make a decision about how to best apply the technology.
C. Look at the benefits and challenges of using specific materials.
OD. Decide whether they have designed the best possible product.

Answers

Answer: Decide whether they have designed the best possible product.

Is CaO a molecular compound?

Answers

Answer:

It's a Ionic compound

Explanation:

To tell if CaO (Calcium oxide) is ionic or covalent (also called molecular) we look at the Periodic Table that and see that Ca is a metal and O is a non-metal. When we have a metal and a non-metal the compound is usually considered ionic.

Because we have a metal and non-metal in CaO there will be a difference in electronegativity between the metal and non-metal. This difference results in an electron(s) being transferred from the metal (lower electronegativity) to the non-metal (higher electronegativity). The results in the metal becoming a postitive ion and the non-metal a negative ion. The two opposite charges are attracted and form the ionic bond between atoms in Calcium oxide.

What are the blue and yellow circles, the red circles, and the darkest blue ?

Answers

Answer:

The Red Circles: Liquid, Blue and Yellow Circles: Solid, and Purple Circles: Gas

Explanation:

Should be it based on the picture and given information.

Why is there a delay for the tides to react to the Moon's and Sun's gravitational effect?
A. Gravity is one of the slower forces in nature having to travel great distances.
B. The gravitational forces must overcome inertia and friction for the tides to take effect on water.
C. Water is relatively immune to the force of gravity delaying the tidal process.
D. There is no delay because the effects of gravity is constantly acting on bodies of water.

Answers

There is no delay because the effects of gravity are constantly acting on bodies of water. Hence, option D is correct.

What is the gravitational effect?

Gravitation or just gravity is the force of attraction between any two bodies.

The Moon exerts over twice the gravitational pull of the Sun on Earth's tides because of its proximity to Earth. -The lunar tidal bulges are about twice the size of the solar tidal bulges. -The Sun's contribution to the tides is less than that of the Moon.

When the sun and moon are perfectly unaligned (they form a 90-degree angle relative to the earth), there are still tides because the moon's gravitational gradient is stronger than the sun's. The sun's gravitational gradient never completely cancels out the moon's.

Hence, option D is correct.

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A 8.63 g sample of a compound contains 5.51 g of iron, Fe, 1.02g of phosphorus, P, and oxygen, O. Calculate the empirical formula for the compound

Answers

The empirical formula for the compound is [tex]Fe_3PO_4[/tex] if A 8.63 g sample of a compound contains 5.51 g of iron, Fe, 1.02g of phosphorus, P, and oxygen, O.

What is the empirical formula?

An empirical formula tells us the relative ratios of different atoms in a compound.

We need to calculate the number of moles:

Given data:

Mass of iron - 5.51 g

Mass of phosphorus -1.02g

Mass of oxygen -2.1 g

Moles of iron - [tex]\frac{mass}{molar \;mass}[/tex]

Moles of iron - [tex]\frac{5.51 g}{56 g/mol}[/tex]

0.098 mole

Moles of phosphorus [tex]-\frac{mass}{molar \;mass}[/tex]

Moles of phosphorus -  [tex]\frac{1.02g}{31 g/mol}[/tex]

0.032 moles

Moles of oxygen -[tex]\frac{mass}{molar \;mass}[/tex]

Moles of oxygen - [tex]\frac{2.1 g}{16 g/mol}[/tex]

0.13moles

Dividing each mole using the smallest number that is divided by 0.032moles.

Fe:P:O :: 3:1:4

The empirical formula for the compound is [tex]Fe_3PO_4[/tex].

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How would you describe the kinetic energy of the particles in a solid?

Answers

Answer:

Solid objects have the least kinetic energy

Explanation:

because solid particles vibrate in place. Gases have the most kinetic energy because their particles move very quickly.

Solid objects have the least kinetic energy

2. A solution is made by dissolving 3.88 g of NaCl in enough water to make 67.8 mL of solution. What is the concentration of sodium chloride in units of weight/volume percent?

Answers

The concentration of sodium chloride in the solution is 5.72% (weight/volume percent).

How to calculate the weight/volume percent concentration?

Weight/volume percent concentration (w/v) expresses the amount of solute (in grams) dissolved in a given volume of solution (in milliliters). Specifically, it is defined as the weight of the solute divided by the volume of the solution, multiplied by 100.

To calculate the weight/volume percent concentration, we need to determine the mass of NaCl per volume of the solution.

First, we need to convert the volume of the solution from milliliters (mL) to liters (L):

67.8 mL = 0.0678 L

Next, we calculate the concentration of NaCl in grams per liter (g/L):

Concentration = Mass of solute ÷ Volume of solution

Concentration = 3.88 g ÷ 0.0678 L

Concentration = 57.2 g/L

Finally, we convert the concentration to weight/volume percent by multiplying by 100:

Weight/volume percent = Concentration x 100

Weight/volume percent = 57.2 g/L x 100

Weight/volume percent = 5.72%

Therefore, the concentration of NaCl in the solution is 5.72% (weight/volume percent).

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What is the best definition of the enthalpy of vaporization, ^ Hvap?

A. The change in the disorder of a system when a liquid changes to a
gas

B. The change in the disorder of a system when a molecule forms
from its atoms

C. The energy needed to raise the temperature of a liquid to the
boiling point

D. The energy needed to change a liquid into a gas

Answers

Answer: D. The energy needed to change a liquid into a gas

Indicate the number of significant figures in the following measured numbers:
a. 45 = __________​​​
f. 980.00 = __________
b. 450 = __________​​​
g. 740000 = __________
c. 0.0045 = __________​​​
h. 0.00000042 = __________
d. 3006 = __________​​​
i. 4050600 = __________
e. 0.00780 = __________​​
j. 230.0050 = __________

Answers

Answer: a = 2 ; f = 5 ; b = 2 ; g = 2 ; c = 2 ; h = 2 ; d = 4 ; i = 5 ; e = 3 ; j = 7

Explanation: Some rules to follow while calculating sig figs is

1. If a number like 4500 is present, only two sig figs are counted, but none of the zeros are, but if 4500. has a decimal point present, then you should count all the numbers available.

2. If a number like .0005 is present, only count 5 as a sig fig, however if the number is .00050, count the 0 after the 5 in this example (this would then have two sig figs.

how many moles of FeCl3 are produced when 3.0 mole.of Fe react eith excess Cl2 gas?

Answers

the answer is going to be about 3.66 moles

Coffe is a solution of organic substance in water

Answers

Answer:

Verdadero!
no se en que mas quieres que te ayude? o cual realmente quieres que sea la respuesta?

Select two descriptions of this matter

Answers

Answer:

this image represents both a crystalline solid [you can tell because it is clearly a solid, and it has a tightly packed/organized into rows layout}

and a pure element [you can tell this because it is pure--meaning that it is not a mixture (which is why it's not classified as a homogenous mixture instead)]

hope this helps!

Answer:

1 and 4

Explanation:

Pure element because it is made by same type of atom.

Crystalline solid because its structure define it as a solid

explain how magic numbers are related to nuclear stabilize

Answers

Answer:

A magic number is a number of nucleons (either protons or neutrons, individually) that form complete bands within the atomic nucleus. As a result, atomic nuclei with a magic number of protons or neutrons are significantly more persistent than other nuclei.

PLEASE NO FAKE ANSWERS!! Chemistry!!! Please will give brainliest !! Show work

Answers

When 1 mole of Zn and 2 mole of O₂ reacts togethor, It will produce 1 mole of ZnO as O₂ is excess reagent and Zn will act as Limiting reagent and thus it limits the amount of product formed.

What is Limiting reagent ?

Limiting reagents are the substances that are completely consumed first in a chemical reaction.

Given ;

Amopunt of Zn : 1 moleAmount of O₂ : 2 mole

Given equation ;

2Zn + O₂ --> 2ZnO

As according to given chemical equation,

2 moles Zn of reacts with 1 mole of O₂ to produce 2 moles of ZnO.

Therefore,

1 mole of Zn will require 0.5 mole of O₂.

But,

the given amount of O₂ is 2 mole which is excess

Hence,

Zn here will act as the Limiting reagent, According to which the amount of product formed will be decided.

Therefore,

If 2 mole Zn produces : 2 moles of ZnO (According to given balanced equation)

Thus,

1 mole of Zn will produce = 2/2 x 1

                                          = 1 mole of ZnO

Hence, When 1 mole of Zn and 2 mole of O₂ reacts togethor, It will produce 1 mole of ZnO as O₂ is excess reagent and Zn will act as Limiting reagent and thus it limits the amount of product formed.

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Which of the following is not a type of covalent bond?
A. Quadruple
B. Double
C. Polar
D. Non-polar

Answers

Answer:

Quadruple

Explanation:

Answer:

A

Explanation:

Please show steps Thanks

Answers

Answer:

chuma ya ndoshi.............

Explanation:

.

kwenda ukalale .............

diffrentiate between equation and chemical formula

Answers

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side with a plus sign between the entities in both the reactants and the products and an arrow that points towards the products, and shows the direction of the reaction. The coefficients next to the symbols and formulae of entities are the absolute values of the stoichiometric numbers. The first chemical equation was diagrammed by Jeen Beguin in 1615.

A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs.

Hope this helps you!

Answer:

Explanation:

Chemical Formula:Represents the composition of a substance or compoundUses symbols and subscripts to indicate the types and numbers of atoms in a moleculeExample: H2O represents the chemical formula for waterChemical Equation:Represents a chemical reactionShows the reactants and products involved in the reactionUses chemical formulas and symbolsReactants are on the left side, products on the right side, separated by an arrowExample: 2H2 + O2 → 2H2O represents the reaction of hydrogen gas and oxygen gas to form waterIn summary:Formula describes composition, equation describes a reactionFormula uses subscripts for atom count, equation uses symbols and arrows

Which Ions oxidize aluminum?

Li^+, Ca^2+, Ag+, Sn^2+

Answers

Aluminum can be oxidized by [tex]Li^{+}[/tex] and [tex]Ca^{2+}[/tex]

What is oxidizing?

Some of the metal corrodes (or oxidizes) and forms the corresponding metal oxide on the surface as a result of a chemical reaction between the metal surface and the oxygen in the air. The corrosion products that occur in some metals, like steel, are highly apparent and loose.

According to reactivity series (The array of metals in the descending order of their reactivities is referred to as the metals' reactivity series. It is sometimes referred to as the metals in the activity series.)

Lithium and calcium ions are more reactive than aluminum ion and they are less electronegative.

Since silver and tin are more electronegative than aluminum so, they cannot oxidize aluminum.

∴ [tex]Li^{+}[/tex] and [tex]Ca^{+2}[/tex] ions can oxidize aluminum.

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➪ State the difference between molarity(M) and molality (m) ?
[tex]\sf{}[/tex]​
⛄​

Answers

Molarity is the ratio of the moles of a solute to the total liters of a solution. The solution includes both the solute and the solvent. Molality, on the other hand, is the ratio of the moles of a solute to the kilograms of a solvent.
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Alex's recipe calls for 1/3 cup of chocolate chips for every 2 cups of flour. If he increases theamount of flour to 3 cups, how many cups of chocolate chips will he need? An auto mechanic charges (C) an initial fee of $50 and then $40 per hour. The graph of this model would be:a curved line that increases but then decreases.a straight line that decreases only.a straight line that increases only.None of these choices are correct. Which shows all the exact solutions of 2sec^2 (x)-tan^4 (x)=-1? Give your answer in radians.a) pi/3 + kpi and 2pi/3 + kpib) pi/3 +2kpi and 5pi/3 +2kpic) pi/4 +2kpi, 3pi/4 + 2kpi, 5pi/4 +2kpi, and 7pi/4 +2kpid) pi/3 + kpi, 2pi/3 +kpi, 4pi/3 +kpi, and 5pi/3 +kpi explain why you would use the soft on/off jumper when working on ATX system need help on this ASAP! please Cyclopropane is a compound of carbon and hydrogen that is used as a general anaesthetic. When 1 g of this substance was burned completely in oxygen, 3.14 g of carbon dioxide and 1.29 g of water were produced. What is the empirical formula of the compound? The molar mass of cyclopropane is about 42 g/mol. What is the molecular formula? Which of the following statements are TRUE about population?I. A population refers to all the members of a species.II. A population is a reproductive group.III. Daisies in the Ohio field make up one population. Given the expression: 6x10 96x2Part A: Rewrite the expression by factoring out the greatest common factor. (4 points)Part B: Factor the entire expression completely. Show the steps of your work. (6 points) answer is equivalent to ?1649SAA.OB.O c.D.16491649316 After absorption, long-chain fatty acids and monoglycerides inside intestinal cells are Eclipses and Moon Phases Activity Student sample of a modeled eclipse. This lesson highlighted eclipses and lunar phases. If you had to teach another person about the difference between the two events, how would you explain it In which situation would you most likely use the t form?A. con compaerosB. con figuras de autoridadC. con ancianosD. con profesores The volume of a cylinder is 8177 cm. If the radius is 3 cm, what is the heightof the cylinder?OA. 9 cmOB. 18 cmO C. 12 cmO D .6cm A candidate running for President is meeting with some potential wealthy donors later today. These donors have millions of dollars that they are considering contributing to help the candidate win. Federal Election Commission restrictions prevent them from contributing the millions that they want to spend. Following the decision of Citizens United v. FEC, what strategy should the donors take to help the candidate's campaign with as much money as possible?Group of answer choicesA. The donors can contribute unlimited cash donations to political parties via the "soft money" loophole.B. The wealthy donors can organize a Super PAC, contribute their money to the Super PAC, and organize the PAC to create ads to support the candidate without working with their campaign directlyC. They will only be allowed to donate the individual maximum to support the candidateD. They will be able to donate $5,000 to a PAC, which can then donate that money directly to the candidate's campaign Read this excerpt from Ani's evaluation of Dan DeLuca's argument in his article "Dylan's Nobel Prize Settles Debate: Rock Lyrics Are Poetry."DeLuca offers a haphazard patchwork of reasoning and evidence that leaves the reader wondering whether he believes his own claim. He remains focused on Dylan's body of work, quoting not only supporters of the Nobel committee's choice, but also detractors. DeLuca also includes a liberal sampling of Dylan's song lyrics, but he largely leaves them to speak for themselves.What evidence from the article best supports Anis evaluation? Select two options. Why you should during the school year which is a fact from.the passage How many times does the Krebs Cycle turn for one molecule of glucose? HELP !!! A taxi driver uses this formula to work out the price of a journey, in pounds. price of journey = 3 + 2 x distance in miles. Leah has 5, the journey to her home is 2.5 miles. She asks the taxi driver to take her as near to home as possible. How far will she need to walk to arrive home? What graph best represents the data A local candy shop sells boxes of chocolate for $3.45 each. If a customer purchases five or more boxes, the cost is only $3 per box, plus the customer has an additional $1 fee per order. If C(x) represents the total cost and x represents the number of boxes, which of the following functions best models this scenario? C of x equals 3.45 times x if x is less than 5 and 3.00x plus 1 if x is greater than or equal to 5. C of x equals 3.45 times x if x is less than 5 and 3.00 plus x if x is greater than 5. C of x equals 3.45 times x if x is less than or equal to 4 and 3.00x minus 1 if x is greater than 5. C of x equals 3.45 times x if x is less than 4 and 3.00x minus 1 if x is greater than or equal to 5