Answer:
C. 0.1 mol of V₂O₅
Explanation:
Number of moles of oxygen atoms present in each molecule is derived as follows:
A. Number of molecules of CO₂ in 12.044 * 10²³ molecules of CO₂ = 12.044 * 10²³/6.022 * 10²³ = 2 moles of CO₂ molecules
Each molecule of CO₂ contains 2 atoms of oxygen. Therefore, number of moles of oxygen atom present in 2 molecules of CO₂ = 2 * 2 moles of oxygen atoms = 4 moles of oxygen atoms.
B. Number of moles of O₃ molecules in 12g of O₃ = mass of O₃/molar mass of O₃
molar mass of O₃ = 48 g/mol
Number of moles of O₃ molecules = 12/48 = 0.25 moles of O₃
There are 3 atoms of oxygen in a molecule of O₃, therefore number of moles of oxygen atoms present in 12 g of O₃ = 3 * 0.25 = 0.75 moles of oxygen atoms
C. There are 5 oxygen atoms in a molecule of V₂O₅
0.1 mol of V₂O₅ contains 0.1 * 5 moles of oxygen atoms = 0.5 moles of oxygen atoms.
D. mass of 10 mL of H₂O = 10 g since the density of H₂O = 1 g/mL
molar mass of H₂O = 18.0 g/mol
Number of moles of H₂O in 10 g of H₂O = 10/18 = 0.56 moles
There are 1 atom of oxygen in a molecule of H₂O, therefore, number of moles of oxygen present in 10 g of H₂O = 0.56 * 1 = 0.56 moles of oxygen atoms
Therefore, 0.1 mole of V₂O₅ contains the least number of oxygen atoms.
Need urgent help!!!!
What are some examples of high-sodium processed foods?
What role does the sodium-potassium ratio (Na/K) play in good health?
What foods are naturally high in potassium (K)?
Sodium chloride is just one of many possible salts. What are salts? How does asalt form? (Hint: An acid and a base are involved, and a salt is neutral in pH.)
Potassium chloride has the chemical formula KCl. It is a salt that is used as a substitute for NaCl in order to reduce sodium intake. Both salts are composed of metal and halogen ions. Would you expect potassium to have properties similar to those of sodium? Why or why not?
Compare and contrast NaCl and KCl as food additives. For example, how do they taste and how good are they for cooking?
Answer:
HERE IS UOUR ANSWER MATE.............
➡️High-Sodium Foods are :-
1) Smoked, cured, salted or canned meat, fish or poultry including bacon, cold cuts, ham, frankfurters, sausage, sardines, caviar and anchovies.
2) Frozen breaded meats and dinners, such as burritos and pizza.
3) Canned entrees, such as ravioli, spam and chili.
4) Salted nuts.
5) Beans canned with salt added.
➡️ Reducing sodium and increasing potassium in your diet can help control hypertension and lower your risk of cardiovascular disease and death. Lowering blood pressure reduces the risk of heart disease and stroke.
➡️Many fresh fruits and vegetables are rich in potassium:
1 . Bananas
2 . oranges
3 . Cantaloupe
4 . Honeydew
5 . Apricots
6 . Grapefruit
(some dried fruits, such as prunes, raisins, and dates, are also high in potassium)
7 . Cooked spinach.
8 . Cooked broccoli.
9 . Potatoes.
10 . Sweet potatoes.
11 . Mushrooms.
12 . Peas.
13 . Cucumbers.
➡️ A salt is a chemical compound consisting of an ionic assembly of cations and anions. Salts are composed of related numbers of cations and anions so that the product is electrically neutral.
Salt ( for chemistry) is a substance produced by the reaction of an acid with a base. A salt consists of the positive ion (cation) of a base and the negative ion (anion) of an acid.
➡️Most of the salt in food, as well as the salt in a shaker, is sodium chloride. Sodium chloride isan ionic compound with the chemical formula NaCl. Processed foods contain a lot of salt and therefore a lot of sodium (Na). As a result, many people consume too much of this alkali Earth metal.
High-sodium diets have been linked to high blood pressure. High blood pressure, in turn, increases the risk of stroke, heart attack, and kidney failure. Reducing sodium intake may help prevent these health problems.
HOPE IT HELPED YOU .......................
THIS QUESTION WAS TOOOO LONG.....
Explanation:
MARK ME AS BRAINLIST..........................
3.5mL converted to cm
Answer:
3.5 cubic centimeters
Explanation:
0/40
What is the volume of the two red spheres? (Hint: new
volume old volume)
6 ml
2 ml
4 ml
8 ml
Answer:
can you show me a picture of the two spheres thanks!!
What is the total amount of heat needed to change 2250 g of silver at 200.0°C to 0.0°C? The specific heat of silver is 0.129 J/g∙°C
Answer:
The total amount of heat needed to change 2250 grams of silver at 200 ºC to 0ºC is 5805 J.
Explanation:
The melting point of silver is 961.8 ºC, meaning that heat released is entirely sensible. Therefore, the amount of heat released by the sample of silver ([tex]Q[/tex]), measured in joules, is determined by the following formula:
[tex]Q = m\cdot c\cdot (T_{f}-T_{o})[/tex] (1)
Where:
[tex]m[/tex] - Mass, measured in kilograms.
[tex]c[/tex] - Specific heat of silver, measured in joules per grams-degrees Celsius.
[tex]T_{o}[/tex], [tex]T_{f}[/tex] - Initial and final temperatures, measured in degrees Celsius.
If we know that [tex]m = 0.225\,kg[/tex], [tex]c = 129\,\frac{J}{kg\cdot^{\circ}C}[/tex], [tex]T_{o} = 200\,^{\circ}C[/tex] and [tex]T_{f} = 0\,^{\circ}C[/tex], then the heat received by the sample of silver is:
[tex]Q = (0.225\,kg)\cdot \left(129\,\frac{J}{kg\cdot ^{\circ}C} \right)\cdot (0\,^{\circ}C - 200\,^{\circ}C)[/tex]
[tex]Q = -5805\,J[/tex]
The total amount of heat needed to change 2250 grams of silver at 200 ºC to 0ºC is 5805 J.
Answer:11.25g
Explanation:
if you needed to produce 2.5 moles of CO2 for your volcano, how much baking soda (NaHCO3) should be used (anwser in grams)
Answer: Help
Explanation:
.
Which volume of 4.00 x 10-2 mol/L solution
of barium nitrate, Ba(NO3)2(aq), contains
2.00 x 10-2 mol of nitrate ions?
0.25 L Barium nitrate solution contains 0.02 mol nitrate ions
Further explanationGiven
0.04 M Barium nitrate, Ba(NO₃)₂(aq)
Required
The volume of Barium nitrate
Solution
Ionization of Barium nitrate in 1 L solution :
Ba(NO₃)₂ ⇒ Ba²⁺ + 2NO₃²⁻
mol :
0.04 0.04 0.08
There is 0.08 mol of nitrate ions in 1 L solution
So for 0.02 mol nitrate ions :
= 0.02/0.08 x 1 L
= 0.25 L
HELP 50 POINTS
You order a large sweet tea with no ice from
McDonalds You got distracted and didn't drink
it right away. About 30 minutes later, you take
a drink and it tastes the same as when you
got it
Example Description
Homogeneous/Heterogeneous ?
WHY?
Solution, Suspension
WHY?
You pick up a snow globe and shake it. A few
minutes later, all of the snow and glitter has
settled at the bottom
Example Description
Homogeneous/Heterogeneous ?
WHY?
Solution, Suspension
WHY?
Answer:
Heterogeneous
Explanation:
you dont remember no ice in it
how many molecules are in 100 grams of ammonia
Answer:
17.03052 or 17 for a whole number
Explanation:
HELPPP!! ASAP PLEASEEEEEE
If a reaction vessel initially contains 5 mol S and 10 mil O2, how many moles of S will be in the reaction vessel once the reactants have reacted as much as possible
Answer:
Explanation:
2S + 3O₂ = 2SO₃
2moles 3 moles
2 moles of S react with 3 moles of O₂
5 moles of S will react with 3 x 5 / 2 moles of O₂
= 7.5 moles of O₂ .
O₂ remaining unreacted = 10 - 7.5 = 2.5 moles .
All the moles of S will exhausted in the reaction and 2.5 moles of oxygen will be left .
differences between nuclear reaction and chemical reaction
Answer:
nuclear involveda change in an atom's nunclues usually producing a different elements.
Chemical reactionon the other hand, involved only a rearrangedment of electrons and do not involve change in the nuclie
Explanation:
Hope it helps kindly follow me
How can moisture in storms from Hawaii reach California?
Answer:
Atmospheric Rivers a.k.a. The pineapple Express
What are some possible replacements for Tin (Sn)?? Help ASAP!!!!!!!!
Answer:
Lead I think is one I'm not completely sure but I know they're similar in some ways
I’ve been struggling could someone help ?
Answer:
Telophase
Explanation:
During telophase, a nuclear membrane forms around each set of chromosomes to separate the nuclear DNA from the cytoplasm.
I hope this helps! (If not, I am very sorry!)
What is the specific heat capacity of copper metal if 25.00 g loses 18 °C, when the metal is placed in 15 g of water and the water temperature rises 2.8 °C?
The specific heat capacity of copper metal : 0.390 J/g °C
Further explanationGiven
25 g metal
Δt metal = 18°C
15 g water
Δt water = 2.8 °C
Required
The specific heat capacity of copper metal
Solution
Q out = Q in
Q releases by metal = Q absorbed by water
m.c.Δt metal = m.c.Δt water(c water = 4.184 J/g °C)
25 x c x 18 = 15 x 4.18 x 2.8
c = 0.390 J/g °C
2)A container has an unknown quantity of gas at a pressure of 61.6 kPa, a volume of 3.9 liters, and a temperature
of 90 °C, how many moles of gas do I have?
Answer:3
Explanation:
A gas has a volume of 1.50mL at 1.89atm. What is the volume when the pressure is 2.75atm? What is the name of the gas law used to solve this problem?
Explanation:
.........................:)
The final volume of the gas at the final pressure can be determined using Boyle's law. The volume of the gas at a pressure of 2.75 atm is 1.03 ml.
What is Boyle's law ?Boyle's law states that, at constant temperature, the volume of a gas is inversely proportional to the pressure of the gas.
Hence, PV = a constant.
Let P1 and V1 be the initial pressure and volume and P2 and V2 be the final pressure and volume then we can write it as,
P1 V1 = P2 V2.
Given that, P1 = 1.89 atm
P2 = 2.75 atm
V1 = 1.50 ml
V2 = P1 V1 / P2
V2 = 1.89 atm × 1.50 ml/ 2.75 atm
= 1.03 mL.
Therefore, the volume of the gas at a pressure of 2.75 atm is 1.03 ml.
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PLEASE HELP!! I'LL MARK U BRAINIEST!! ALSO PLZ IF YOU CAN SHOW THE WORK
Answer:
9.63×10²⁴ particles of H₂O
Explanation:
We'll begin by writing the balanced equation for the reaction. This is given below:
CH₄ + 2O₂ —> CO₂ + 2H₂O
From the balanced equation above,
1 mole of CH₄ reacted to produce 2 moles of H₂O.
Next, we shall determine the number of mole of H₂O produced by the reaction of 8 moles of CH₄. This can be obtained as follow:
From the balanced equation above,
1 mole of CH₄ reacted to produce 2 moles of H₂O.
Therefore, 8 moles of CH₄ will react to produce = 8 × 2 = 16 moles of H₂O.
Thus, 16 moles of H₂O were obtained from the reaction.
Finally, we shall determine the number of particles of H₂O produced. This can be obtained as follow:
Number of mole of H₂O produced = 16 moles
Number of particles produced =?
From Avogadro's hypothesis,
1 mole = 6.02×10²³ particles
Therefore,
16 mole = 16 mole × 6.02×10²³ particles / 1 mole
16 moles = 9.63×10²⁴ particles
Therefore, 9.63×10²⁴ particles of H₂O were produced.
What type of severe weather is characterized by a lack of precipitation over a long period of time?
Answer:
Explanation:
A form of severe weather is drought, which is a prolonged period of persistently dry weather (that is, absence of precipitation).This can cause wild fires which impact the growth of trees.They cause the tree the release carbon dioixide rather than store!
Short leg trait would be transmitted to the next generation through????
Answer:
genes I believe???? like genes transmitted from past relatives
PLEASE HELPPPPP I WILL GIVE BRAINLEST FOR WHOEVER FINDS THE ANSWER!!!
As stated in the article, “As Sticky as a Gecko . . . but Ten Times Stronger!,” the adhesive the researchers developed sticks best when it is pulled down parallel to the surface. What type of adhesion is this called?
nano adhesion
perpendicular adhesion
shear adhesion
weak adhesion
Answer:
sheer adhesion
Explanation:
edge 2021
What is wrong with the electron configuration below?
1s2 2s2 2p5 3s2 3p6 4s1
Answer:
the 2p5 should have filled up one more so it would be 2p6 ...which assuming it's not an excited electron?
Which of these elements could be formed at the anode when a molten salt is electrolysed?
A
copper
B
iodine
C
lithium
D
strontium
Answer: A-Copper.
Explanation:
Copper is the element that could be formed at the anode when a molten salt is electrolyzed due it's variable oxidation state.
What is an element?
An element is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.
Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.
The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.
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balance
AI(NO3)3 +
H2SO4 →
Al2(SO4)3 +
HNO3
Answer:
2Al(NO3)3 + 3H2SO4 → Al2(SO4)3 + 6HNO3
Explanation:
i just looked up how to balance it, i dont really know how to balance it exactly
1. All non-living components of an ecosystem form a(n)
A. biotic factor
B. ecosystem
C. biotic community
D. abiotic environment
Explanation:
[tex] { {.112201 \times \frac{?}{?} }^{?} }^{?} \times \frac{?}{?} \times \frac{?}{?} [/tex]
Write Four Facts About COMPOUNDS:
Balance the equation for aluminum burning in oxygen to form aluminum oxide. ____Al + ____O2 ----> Al2o3
Answer:
4Al + 3O2 → 2Al2O3
Explanation:
If 4.59 g of potassium reacts with 3.6 g of sulfur according to the following reaction, how many grams of potassium sulfide can theoretically be produced? Please identify the limiting and excess reactants: 2K + S -> K^2S
To reach a decision in a criminal case, jurors must talk to the lawyers. review the evidence. question the witnesses. create final summaries.
Answer:
B. review the evidence
Explanation:
To reach decision in criminal case,jurors must review evidence as it may contain some important information which could help in decision such as investigation of hairs,nails, etc which contain DNA through which decision making would be easy.
What is DNA?DNA is a hereditary material which is present in human beings as well as all other living organisms. Every cell which is present in an organism's body has DNA which is the same. Most of the DNA is situated in the cell's nucleus and small amount of it can be found in the cell's mitochondria as well.
Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.
DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule and a phosphate group. A base, phosphate sugar are together called as nucleotides.
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How many moles are in 1.204 x 10^24 molecules of Bromine
Answer:
2.2876e+24 or 2.2876000000000000000000000000 (same thing)
Explanation:
First we can do the exponents first
When there is an exponent on top of a number, it means that we need to multiply that number by the amount that the exponent says by itself.
10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 = .....
1E24 or 1,000,000,000,000,000,000,000,000
1,000,000,000,000,000,000,000,000 × 1.204 = ......
2.2876e+24 or
2.2876000000000000000000000000
~ 2.2876 r 2.288 or 2.28, or 2.3
Depends on how much you want to round it up to.
