How many molecules of H20 are in 2.0 moles

Answers

Answer 1

Answer: Hi There! :)

How many molecules of H20 are in 2.0 moles

12.044*10^23 or 6.022⋅1023 atoms

Related Questions

A 1.0 liter container is filled with 0.300 M ofPCl5 at 250◦C. The vessel is then held at aconstant temperature until the reactionPCl5(g) ⇀↽ PCl3(g) + Cl2(g)comes to equilibrium. It is found that thevessel contains 0.200 moles of PCl5. What isthe value of the equilibrium constant for thereaction at this temperature?
Which compound is an Arrhenius base?
A balloon filled with helium rises when youlet it go. A balloon filled with carbon dioxidesinks. Explain the difference.
If a saturated solution of potassium chloride is cooled from 80℃ to 50℃,how much precipate is formed
#1. The arrangement of atoms at the peak of the activation energy barrier is known as the _____. A. activation rate B. activated complex C. transition state D. both B and C #2. Two opposing reactions (A + B C + D) occurring simultaneously at the same rate is an example of:A. reversibility./B. chemical equilibrium./C. neither a nor b/D. both a and b #3. A substance that interferes with the action of a catalyst is known as a(n) _____. A. negative inhibitor /B. either an inhibitor or negative inhibitor /C. inhibitor /D. activated complex #4. The reducing agent in the reaction described in Fe + 2HCl → FeCl2 + H2 is A. Fe./B. HCl./C. FeCl2.

I will give u brainliest if u get it right. I want someone smart.

Answers

Answer:

A just A

Explanation:

Answer:

so is c they have the same mass.

Calculate the decrease in temperature when 2.00 L at 20.0 °C is compressed to 1.00 L.

Answers

We assume that this substance is in an ideal state. Then, we can use the ideal gas equation which is expressed as: PV = nRT. Comparing the first and second conditions of the substance, we can say that the number of moles and the pressure remains the same. We can solve the problem as follows:

P1V1 = n1RT1
P2V2 = n2RT2

Since P and n are the same for the conditions, we can combine the equations.

T1/V1 = T2/V2
20.0/2 = T2/1
T2 = 10.0 °C

How is the electron sea model of metallic bonding different from the band theory? How are they the same? Give at least one similarity and one difference between the models

Answers

The electron sea model states that the metal atoms are packed, relatively densely, into their crystal structure so that the outer electrons of each metal atom can be shared by all other atoms near enough to share.

With this "sea of electrons" electrical current, which is a flow of electrons, is best explained because the electrons in a metal are already "flowing" around every metal atom in the crystal and can then freely flow through the metal. it's the same thing with heat. because the electrons are 'free' in metallic compounds and shared by all metal atoms, heat is transferred just as well. Malleability and ductility are explained by this because even though metals are relatively dense, they aren't so dense that they cannot be made to be closer together. because the outer electrons are not rigidly held in place by nuclear charge or strict crystal structure, metals are easily, some more than others, pounded into shape or drawn into wire.

Electron sea model: Electrons all have approximately the same energy.

Band theory: Electrons move among orbitals of different energies.

Both models: Electrons move freely among atoms (delocalized).

is the answer on edgeunuity

You have a stock bottle of HCl (aq) which is 12.1M, You need 400 mL of 0.10M HCl. How much of the acid and how much water will you need?

Answers

Mols of acid needed: 0.4 liters x 0.10 mol/liter = 0.04 mol

Volumen of acid in the bottle than contaiins 0.04 mol of acid: V = #moles/M = 0.04 mol/12.1 mol/liter = 0.003306 liters = 3.306 ml

Then you need 3.3 ml of acid from the bottle and 396.7 ml of pure water to get 400 ml of acid 0,1 M

What term describes an atom's tendency to hold on on to electrons?

Answers

Explanation:

Electronegativity is the chemical property of an element. This is defined as the tendency of an atom to attract the shared pair of electrons towards itself when a bond is formed.

This property of an atom increases as we move from left to right in a period because the number of charge on the nucleus increases.
this property decreases as we move from top to bottom in a group because electrons get added up in the new shells which make it further far away from the nucleus.

The term that describes an atom's tendency or ability to hold on to electrons and pull electron density from other atoms closer to itself is referred to as electronegativity. A very electronegative atom, will not only have a strong attraction to its electrons including the valence ones, but also to the valence electrons of other atoms, usually these are nonmetals.

Which of the following atoms releases more energy than oxygen when an electron is added to its valence energy level? Select one:
a. helium (He)
b. fluorine (F)
c. carbon (C)
d. nitrogen (N)

Answers

The answer is b. fluorine (F). This is because fluorine is a more electronegative (electron loving) atom compared to oxygen. It is found on the 7th group of the periodic table, so it has 7 valence electrons. It only needs one more electron to achieve the ideal number of valence electrons which is 8. Oxygen, on the other hand, is in group 6 so it needs 2 more electrons to complete its valency. Helium can't be the answer because it is already in group 8, meaning it is already stable and won't release energy.

Other Questions

Which of the following will result in a chemical change? A. Burning coal in a furnace B. Drying wood in a shed C. Melting ice to obtain water D. Evaporating alcohol into vapor

Hydrogen chloride, HCl, is classified as an Arrhenius acid because it produces(1) H+ ions in aqueous solution(2) Cl– ions in aqueous solution(3) OH– ions in aqueous solution(4) NH4+ ions in aqueous solution

A solution contains 72.0 g of HCl and 468 g of (C6H6). What is the mole fraction of benzene

Which describes the relationship between [H+] and [OH−] ?