please hurry which statement is a scientist most likely to use in describing work

Please Hurry Which Statement Is A Scientist Most Likely To Use In Describing Work

Answers

Answer 1
b i think ye ghhhjhhjjjkxhb

Related Questions

is zinc a basic radical or acid radical?​

Answers

Answer:

depends on the element it's reacting with..

Explanation:

if the another element requires less energy to loose electron then zinc will become negatively charged and hence becomes acidic radical..

normally if it is reacting with element with valency 4 and Atomic number less than it(Ti,Si,C) then it will lose electron and gain positive sign and henve becomes basic radical..

What is the correct equilibrium constant expression for the following reaction?
2NCl3(g) Û N2g) + 3Cl2g

Answers

Answer:

K = [N2] [Cl2]³ / [NCl3]²

Explanation:

The equilibrium expression, K, of a reaction:

aA + bB ⇄ cC + dD

Is defined as the ratio between the multiplication of concentrations of products powered to its reaction coefficient and the multiplication of concentrations of reactants powered to its reaction coefficient as follows:

K = [C]^c[D]^d / [A]^a[B]^b

Now, for the reaciton:

2NCl3 ⇄ N2(g) + 3Cl2(g)

K is:

K = [N2] [Cl2]³ / [NCl3]²

Convert the following absolute temperatures to centigrade.
i) 0 K
ii) 298 K
iii) 323 K
iv) 423 K

SHOW STEP BY STEP

Answers

Answer:

0 K

[tex]{ - \bf{273 \degree C}}[/tex]

298 K

[tex]{ \tt{ = 298 - 273}} \\ = { \bf{25 \degree C }}[/tex]

323 K

[tex]{ \tt{ = 323 - 273}} \\ = { \bf{50 \degree C}}[/tex]

423 K

[tex]{ \tt{ = 423 - 273}} \\ = { \bf{150 \degree C}}[/tex]

1.T=[£+273]

=273

It is because kelvin temperature is absolute zero.

How is kilo gram is related to gram​

Answers

Answer:

i know you think that they are just related because kg has kilo but they are related because

Explanation:

1000g makes 1 g.You see how much there is a difference in the solution because how is one=one thousand,well that is all i can help you from here.bye panta

Answer:

1 g=1000kg

Explanation:

They are related in mathematical way

The classification of an acid or base as weak or strong is based uponGroup of answer choicesthe solubility of the acid or basethe extent of dissociation of the acid or basethe concentration of acid or base in solutionmore than one response is correct

Answers

Answer: the extent of dissociation of the acid or base

Explanation:

When an acid or base dissociates, it means that they go back to their original ions in order to be able to react with the atoms in the solution they dissociated in.

Stronger acids and bases are able to almost completely dissociate in a solution which is why they are able to react with the atoms in the solution very easily. The strength of an acid or base is therefore measured by how much dissociation they can manage in a solution.

Which is the best term to use when describing the energy of motion? chemical kinetic potential thermal

Answers

Answer:

Kinetic energy

Explanation:

Kinetic energy is the energy associated with an object's motion. It is mass and velocity dependent by a directly proportional relationship.

Potential energy is the energy associated with an object's position.

Thermal energy is the energy associated with heat addition or withdrawal.

Kinetic energy is the energy that a body possesses because of its movement, that is, it is the energy that arises when objects are in motion.

What is kinetic energy?

It is that energy that a body or system possesses due to its movement.

The amount of work done by all the forces acting on a body with a given mass, depends on the said mass and the speed of the body.

Therefore, we can conclude that kinetic energy is the energy produced by its movements that depends on its mass and speed.

Learn more about kinetic energy here: brainly.com/question/999862

If an atom of chlorine (CI) were to ionize, it would
electron(s).

Answers

Answer:

Explanation:

As per being a Group 7 element, it would gain one electron, which changes it's charge to 1-. It is therefore negatively charged, having a full outer shell of 8, having its electronic structure to be at 2,8,8.

Describe how a constant volume calorimeter can be used to measure the heat transferred from a burning piece of coal to cool water.
thank you <3

Answers

Answer:

A Calorimeter is a device used to measure the amount of heat involved in a chemical or physical process.

Explanation:

Ex- when an exothermic reaction ( accompanied by or requiring absorption of heat)occurs in solution in a calorimeter, the heat produced by the reaction is absorbed by the solution increasing its temperature.

   - When an endothermic reaction (Heat evolving reaction) occurs, the heat required is absorbed from the thermal energy of the solution, decreasing its temperature.

A burning piece of coal which is releasing heat due to its combustion and is transferred to water.

Mark as Brainliest ;)

Which redox reaction would most likely occur if silver and zinc metal were
added to a solution that contained silver and zinc ions?
Click for a reduction potential chart
O A. Zn2+ + 2Ag → Zn + 2Agt
B. Zn2+ + 2Agt → Zn + 2Ag
C. Zn + 2Ag → Zn2+ + 2Ag+
D. Zn + Ag? → Zn2+ + 2Ag

Answers

Answer:

Zn²⁺ + 2Ag → Zn + 2Ag⁺

Explanation:

According to the reduction potential chart, silver ion (Ag⁺) is a stronger oxidizing agent than zinc (Zn), which is a reducing agent the compared to silver

Therefore, the redox reaction that will occur is that the zinc, Zn, will be oxidized to Zn²⁺ ion, while the silver, Ag²⁺ ion will be reduced to silver deposits Ag, therefore, the zinc will displace the silver in the solution containing silver and zinc ions because zinc is higher than silver in the reactivity series

The reduction potential Zn → Zn²⁺ + 2e⁻ = +0.76

The reduction potential for Ag⁺ + e⁻ → Ag = +0.8

Given that redox reactions are reversible, we get the following likely redux reaction:

Zn(s) + 2Ag⁺(aq) ⇄ 2Ag(s) + Zn²⁺(aq)

 

Zn²⁺(aq) + 2Ag(s) → Zn(s) + 2Ag⁺(aq) is the reaction most likely to occur.

precautive measures taken when using pooter​

Answers

I guess ensuring that you don't suck the insects or specimen collected by ensuring there is a net in the pooter

hii pls help me to balance the equation thanksss​

Answers

Answer:

[tex]{ \bf{2P _{(s)} + 5Cl _{2(g)} → 2PCl _{5(s)}}}[/tex]

▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓

[tex]\boxed{\pmb{\purple{\sf{2P(s) + 5Cl _{2}(g)\dashrightarrow 2PCl _{5}(s)}}}}[/tex]

▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓

How can the percentage of air be determined

Answers

Answer:

The composition of air can be determined by an experiment which includes passing a known volume of air, measured at a known temperature and pressure, over sufficient amount heated copper granules/powder, and measuring the volume gas remaining after the gas cools down to the temperature at which the first measurement was taken

Oxygen reacts with copper according to the following chemical reaction

2Cu (s) + O₂ (g) → 2CuO (s)

Cupper does not react with the other constituents of air

Whereby the initial volume of air was 100 cm³, we have;

Percentage of oxygen in air = 100 - The final volume reading of the container initially holding the air

When done using am appropriate experimental setup, the percentage of gases remaining equals 79% to 80%, therefore, the percentage composition of oxygen in air is between 20 and 21 percent

Explanation:

What do the solid white and red balls in this model represent?
H
H— — О
A. Planets and
the Sun
B. Electrons
C. Molecules
D. Atoms
PREVIOUS

Answers

Answer:

C. Molecules

Explanation: Water is a compound that conatins molecules hydrogen and oxygen.

Answer: Atoms

Explanation:

Which of the following is not a result of surface tension in water?

a. water has an unusually low vapor pressure
b. drops tend to become spherical
c. surface area is maximized
d. surface appears to have a “skin”

Answers

The option which isn't a result of surface tension in water is: c. surface area is maximized.

Water can be defined as a liquid molecule that comprises the chemical element hydrogen and oxygen in the ratio of two to one (2:1).

Surface tension can be defined as a property of liquid such as water, which makes its surface to resist an external force due to the cohesive nature of its molecules.

This ultimately implies that, the surface tension of a liquid is mainly as a result of the cohesive forces existing between its molecules.

Generally, the surface tension of water is typically higher than the surface tension of most liquids.

Due to the effect of surface tension in water;

Water has an unusually low vapor pressure due to the hydrogen bond between its molecules.Drops of liquids such as water tend to become spherical.The surface of a liquid such as water appears to have a “skin”

Additionally, the surface tension of a liquid such as water can be described as an inward force which tends to minimize its surface area rather than maximize its surface area.

In conclusion, surface tension in water doesn't maximize its surface area.

Find more information: https://brainly.com/question/11348644

What general term is used to describe the pure liquid (such as a pure water) obtained in such a process

Answers

Pure water is called distilled water or deionized water.

What is the principle of simple machine?​

Answers

Answer:

A machine produces force and controls the direction and the motion of force, but it cannot create energy. A machine's ability to do work is measured by two factors. These are (1) mechanical advantage and (2) efficiency.

HOpe this helps you ❤️

MaRk mE aS braiNliesT ^_^

Nal+ pb(SO4) 2 Pbl4 + Na2SO4 explain how to balance the chemical equation and classify its reaction type

Answers

Explanation:

because there are 4 Iodines on the left, we'll put. 4 in front of NaI to balance it. This would result in 4 Na on the left, so we'll put a 2 in front of Sodium Sulfate to balance the right side. Now we have 4 Na and I on both side, as well as 2 Sulfate on both sides. Pb is already balanced. The equation is now complete.

1.One gram-atom of Nitrogen is heavier than one gram-atom of Oxygen.

True or false

2.Measurements of a physical quantity. can be very precise but not accurate

True or False

Answers

Answer:

1 . statement is false

2. statement is true

What’s the name of this compound?

Answers

The name of the compound is Methylidyne radical.

A piece of sodium metal can be described as?

Answers

it can be described as a pure metal

what is meant by reaction element​

Answers

Answer: A reaction element are those elements that can take part in a chemical reaction.

Explanation:

An element is made up of atoms that has the same atomic number. It is the basic material of which all matter is composed of. These elements cannot be broken down further into smaller substances by any chemical reaction. Each element has a unique number of protons in its atom. For example,

--> a hydrogen atom has 1 proton,

--> a Helium atom has 2 protons,

--> a Lithium atom has 3 protons, and

--> a carbon atom has 6 protons.

A chemical reaction on the other hand involves rearrangement of the constituent atoms of reactants to create different substances as products. The bonds between atoms are either broken or created to form new molecules. There are different types of chemical reaction which includes:

--> Decomposition reaction

--> Neutralization reaction

--> single displacement reaction and

--> combustion reaction.

plz solve the question and send the answer
I will give u branist n like u and even follow u back plz help me​

Answers

Answer:

P¹V¹/T¹=P²V²/T² here

P²= 1.25- atm

V²=?

T²=345K

P¹=0.75-atm

V¹=120

T¹=295K

So V²= (0.75 x120/295)x(345/1.25)

Volume of the gas V²= 84.20- ml

Answer:

Solution given:

at first

volume[tex]V_{1}=120.0ml[/tex]

pressure [tex]P_{1}=0.75atm[/tex]

temperature [tex]T_{1}=22+273=295°K[/tex]

after increasing temperature and pressure

volume[tex]V_{2}=xml[/tex]

pressure [tex]P_{2}=1.25atm[/tex]

temperature [tex]T_{2}=70+273=343°K[/tex]

now

By using Combined gas equation

[tex]\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}[/tex]

substituting value

[tex]\frac{0.75*120}{295}=\frac{1.25*x}{343}[/tex]

0.305=5x/1372

Doing criss cross multiplication

5x=0.305*1372

x=418.46/5

x=83.69ml

x=84ml

the volume will be 84ml

A sample of helium has a temperature of 450 K. The gas is cooled to 248.9 K at which time the gas occupies 103.4 L? Assume pressure is constant at 3 atm. What was the original volume of the gas?

A. 186.94 L
B. 304.5 L
C. 57.19 L
D. 361.07 L

Answers

Answer:

[tex]\boxed {\boxed {\sf A. \ 186.94 \ L}}[/tex]

Explanation:

We are asked to find the original volume of a gas given a change in temperature. Since pressure remains constant, we are only concerned with volume and temperature, so we use Charles's Law. This states the volume of a gas is directly proportional to the temperature. The formula for this law is:

[tex]\frac {V_1}{T_1}= \frac{V_2}{T_2}[/tex]

The gas begins with a temperature of 450 Kelvin, but the volume is unknown.

[tex]\frac {V_1}{450 \ K }= \frac{V_2}{T_2}[/tex]

The gas is cooled to 248.9 Kelvin and the gas occupies a volume of 103.4 liters.

[tex]\frac {V_1}{450 \ K }= \frac{103.4 \ L}{248.9 \ K}[/tex]

Since we are solving for the original volume, we must isolate the variable V₁. It is being divided by 450 Kelvin. The inverse operation of division is multiplication, so we multiply both sides of the equation by 450 K.

[tex]450 \ K \frac {V_1}{450 \ K }= \frac{103.4 \ L}{248.9 \ K}* 450 \ K[/tex]

[tex]V_1= \frac{103.4 \ L}{248.9 \ K}* 450 \ K[/tex]

The units of Kelvin cancel.

[tex]V_1= \frac{103.4 \ L}{248.9 }* 450[/tex]

[tex]V_1= 0.4154278827 \ L *450[/tex]

[tex]V_1= 186.9425472 \ L[/tex]

Round to the nearest hundredth. The 2 in the thousandths place tells us to leave the 4 in the hundredth place.

[tex]V_1 \approx 186.94 \ L[/tex]

The original volume is approximately 186.94 liters and Choice A is correct.

What do Van der Waals forces do?

Answers

Answer:

they are weak forces that attract neutral molecules to one another

Explanation:

particles in liquid or air vibrate and move constantly thus they collide

Do different color lights (RBG) use additive or subtractive properties to bring light of a certain color to our eyes?

Answers

Answer:

The lighting filters use subtractive properties to bring light of a color to the eye because subtractive color mixing uses white light source with a series of filter to eliminate certain wavelengths of light.

Different colour lights (RBG) uses additive properties to bring light of a certain color to our eyes.

What is color synthesis?

Color synthesis is the art of forming different types of colours from small number of primary colours. The color formed is called a secondary color.

Color synthesis is carried out through the following means:

Additive color synthesis and

Subtractive color synthesis.

In additive color synthesis, the three primary colours lights that are combined is Red(R), Blue (B) and Green(G).

The wavelength from the various color light combine to generate white light which is visible to the eye.

Therefore, different colour lights (Red, Blue and Green) uses additive properties to bring light of a certain color(white) to our eyes.

Learn more about color synthesis here:

https://brainly.com/question/18452279

describe the process to electroplating with the help of an activity

Answers

Answer:

process of depositing a thin layer of any superior metal over an object of a cheaper metal, with the help of electric current

Explanation:

I hope this help have an great day and stay health

****URGENT****
I need help!!!
the answers are there, i need someone to explain please!

Answers

Explanation:

your answer was correct

Consider the terms elements, compounds, and mixtures. What do you think each of
these is?

Answers

Answer:

Explanation:

Element -

It is the basic unit of matter, which cannot be broken down into substances by any way but can be combined to form new substances.

It is a pure substance.

It classifies into metals, non-metals, metalloids and noble gases.

Example - Hydrogen, Carbon, Oxygen

Compounds -

It is a combination of two or more elements.

It is a pure substance.

Through chemical reactions, they can be broken down into metals.

Example - Water, Carbon dioxide

Mixtures -

It is a combination of two or more elements or compounds or both.

The substances combined in a mixture are in a particular ratio.

Example - Chalk powder, Washing Soda

what is bonding in chemistry

Answers

Explanation:

A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds.

if you want please give me brainliest and sir

Answer:

Check Down

Explanation:

A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bond.

the solubility of sugar is 250 at 60° what does it mean​. please helpp anyone please help​

Answers

I don't know I am having the same problem

Other Questions
3.Read the sentence and answer the question.They ate lunch in the restaurant and then they took their dog for a walk in the park.Which correctly shows where a comma is needed in the sentence?A. They ate lunch in the restaurant and then they took their dog, for a walk in the park.B. They ate lunch in the restaurant and, then they took their dog for a walk in the park.C. They ate lunch in the restaurant, and then they took their dog for a walk in the park.D. They ate lunch in the restaurant and then they took their dog for a walk, in the park. Karen is listening to a colleague's idea for reducing customer wait time at the stora Which behavior can Karen exhibit to best demonstrate that she agrees with her colleague's idea? O a) Nod her head Cross her arms in front of her chest b) C) Rest her chin in one hand O d) Rub her hands together Tess created a Pythagorean triple of (24, 32, 40) by multiplying the known Pythagorean triple 3, 4, and 5 by 8. Is Tess correct? Can a Pythagorean triple be created using multiples of a known Pythagorean triple.Yes, as long as each number in the Pythagorean triple is multiplied by the same whole number.Yes, as long as each number in the Pythagorean triple is multiplied by a different whole number.No, Pythagorean triples only exist with small numbers.No, multiplying a known Pythagorean triple by a whole number will not create a Pythagorean triple. 20. What is the transformation?:a. rotation b. reflectionc. translation Please help me with this! Its due in a few hours The table shows how surveyed drivers obtained their current vehicle and how they plan to get their next vehicle.A 2-way table. A 4-column with 4 rows titled Plan for Next Vehicle. Column 1 has entries Current vehicle, bought new, bought used, leased total. Column 2 is labeled Buy new with entries 39, 19, 5, 63. Column 3 is labeled Buy used with entries 6, 146, 2, 154. Column 4 is labeled Lease with entries 6, 9, 18, 33. Column 5 is labeled Total with entries 51, 174, 25, 250.What percent of drivers surveyed bought their current vehicle new and will buy a new vehicle again next time? Round your answer to the nearest whole number; you do not need to enter the percent symbol.I think it's 16. Can someone help check it? Has Toyota done the right thing by manufacturing a car brand for everyone? Why or why not? g(x) = -8x + 2, finda. g(x+4)b. g(x) + g(-2) he following transactions are for Alonzo Company.1. On December 3, Alonzo Company sold $500,000 of merchandise to Artis Co. on account. The cost of the merchandise sold was $330,000.2. On December 8, Artis Co. returned $25,000 of merchandise purchased on December 3. The cost of the goods was $16,000.3. On December 13, Alonzo Company received the balance due from Artis Co.Prepare a tabular summary to record these transactions for Alonzo Company using a perpetual inventory system. (Enter negative amounts using either a negative sign preceding the number e.g. -45 or parentheses e.g. (45).)Assets= Liabilities+ Stockholders' EquityRetained EarningsDateCash+ Accts.Rec.+ Inventory= Accts.Pay.+ Common Stock+ Rev.- Exp. ITS TIMED HELP!!!Assuming x and y are two odd numbers and x/y is an integer. Which of the following statements are true?1: x + y is odd.2: xy is odd.3: x/y is odd.4: x-y is odd.A: 1 and 2 only.B: 1 and 3 only.C: 2 and 3 only.D: 2, 3, and 4 only.E: 2 and 4 only. Explain the poem line by line Ozymandias. A student was given a solid containing a mixture of nitrate salts. The sample completely dissolved in water, and upon addition of dilute HCl , no precipitate formed. The pH was lowered to about 1 and H2S was bubbled through the solution. No precipitate formed. The pH was adjusted to 8 and H2S was again bubbled in. This time, a precipitate formed. Which compounds might have been present in the unknown?a. Ca(NO3)2b. AgNO3c. Fe(NO3)3d. Cr(NO3)3e. Cu(NO3)2f. KNO3g. Bi(NO3)2 Which substance would be the most soluble in gasoline?Select one:A. hexaneB. NaNO3C. HCID. waterE. Nacl a.Trnh by cc quan h ngn ng c trong cu sau: Ti sinh ra v ln ln Ngh An - mnh t ca nhng ngi coi trng danh d v o ngha. The graphs of functions f(x) and g(x) = f(x) + k are shown belowwhat is the value of k? which best explains how Spain affected the outcome of the revolutionary war What is a segment parallel to ba in a cube MC Qu. 133 Cahuilla Corporation predicts... Cahuilla Corporation predicts the following sales in units for the coming four months: April May June July Sales in Units380 420 440 380 Each month's ending Finished Goods Inventory should be 40% of the next month's sales. March 31 Finished Goods inventory is 152 units. A finished unit requires 5 pounds of direct material B at a cost of $2.00 per pound. The March 31 Raw Materials Inventory has 230 pounds of B. Each month's ending Raw Materials Inventory should be 30% of the following month's production needs. The budgeted purchases of pounds of direct material B during May should be: When a company records depreciation it debits:_____.A. Depreciation Expense and credits a contra-asset account. B. Depreciation Expense and credits Cash. C. a long-lived tangible asset account and credits Depreciation Expense. D. a liability account and credits Depreciation Expense. Which events increased tensions between the Japan and the United States in the late 1930s?Japan attacked the US at Pearl Harbor.Japan continued its expansion into China.Japan joined the Allied countries.Japan joined the Axis countries.Japan barred trade with the US.Japan invaded French Indochina. James is in his mid-40s and has little time to exercise as he runs a business. However, he knows that he should focus more on his health, eat healthy meals at regular intervals, and exercise as often as he can. One of the age-related conditions that James is most likely to face at his age is