1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tresset [83]
2 years ago
7

Moles of Zn in 5.6*10^24 atoms of Zn

Chemistry
1 answer:
fredd [130]2 years ago
8 0
1 mole of any substance (atoms or molecules)=6.022 x 10²³ atoms or molecules.

In this case:
1 mole of Zn=6.022*10²³ atoms.

Then:

1 mole of Zn---------------------6.022*10²³ atoms
x-------------------------------------5.6*10²⁴ atoms

x=(1 mole of Zn * 5.6*10²⁴ atoms)/6.022*10²³ atoms=9.0032... moles≈
≈9 moles

Answer: we have 9 moles in 5.6*10²⁴ atoms of Zn. 
You might be interested in
2. Balance the equation below, and answer the following question: What volume of chlorine gas, measured at STP, is needed to com
Juliette [100K]
Balanced equation: 2Na(s) + Cl₂(g) ---> 2NaCl(s)

when we have STP conditions, we can use this conversion: 1 mol = 22.4 L

first, we have to convert grams to molecules using the molar mass, and then use mole to mole ratio from the balanced equation. 

molar mass of Na= 23.0 g/mol
 ratio: 2 mol Na= 1 mol Cl₂ (based on coefficients of balanced equation)

calculations:

6.25 g Na ( \frac{1 mol Na}{23.0 g} ) ( \frac{1 mol Cl_2}{2 mol Na} ) ( \frac{22.4 L}{1 mol} )= 3.04 L
8 0
2 years ago
When charging an object by conduction, what happens to the charges in the<br> object?
3241004551 [841]

Answer:

During charging by conduction, both objects acquire the same type of charge. If a negative object is used to charge a neutral object, then both objects become charged negatively. In order for the neutral sphere to become negative, it must gain electrons from the negatively charged rod. 3.

7 0
2 years ago
A plate moves 200 m in 10,000 years. What is its rate in cm/year?
Varvara68 [4.7K]

Answer:

The answer is

<h2>2 cm/year</h2>

Explanation:

To find the rate in cm/year we must first convert 200 m into cm

1 m = 100 cm

if 1 m = 100 cm

Then 200 m = 200 × 100 = 20 ,000 cm

So the rate is

<h2>\frac{20000}{10000}</h2>

<u>Reduce the fraction with 10,000</u>

We have the final answer as

<h3>2 cm/year</h3>

Hope this helps you

3 0
2 years ago
Select the correct structure that
Leni [432]

Answer:

Explanation:

its b

8 0
3 years ago
Which atom in the ground state has the same electron configuration as a calcium ion, Ca2+, in the ground state?(1) Ar(2) K(3) Mg
Irina-Kira [14]

atoms are made of 3 types of subatomic particles; electrons, protons and neutrons

atomic number is the number of protons. atomic number is characteristic for the element. In ground state atoms, the number of electrons and protons are the same.

the electronic configuration of Ca in the ground state is

Ca - 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

when Ca loses its 2 valence electrons, it becomes positively charged and the electronic configuration becomes

Ca - 1s² 2s² 2p⁶ 3s² 3p⁶

number of electrons in Ca²⁺ is 18

the atom in the ground state would have the same number of electrons and protons. Therefore number of protons are 18. then the atomic number of the element is 18

the atom having an atomic number of 18 is Ar.

the answer is 1) Ar

7 0
2 years ago
Read 2 more answers
Other questions:
  • The rare earth elements include A. the lanthanide series and the alkali metals. B. the alkali metals and the transition metals.
    9·2 answers
  • To begin the experiment, 1.11g of methane CH4 is burned in a bomb calorimeter containing 1000 grams of water. The initial temper
    5·1 answer
  • What is a compound in chemistry
    11·1 answer
  • Which one of these equations is balanced? a. Zn + 2hcl --&gt; ZnCl2 + H2 b. S8 + 24F2 --&gt; 8SF6 
    10·1 answer
  • What is the frequency of a photon with a wavelength of 1040 nm. Report your answers to three significant digits. The frequency i
    12·1 answer
  • Why does a negatively charged rod force a stream of water away from the rod?
    14·1 answer
  • In scientific notation what is the radius of the sun​
    14·1 answer
  • Energy from sources that are constantly being formed is non-renewable energy.
    5·1 answer
  • What is the origin of the word hydrogen?
    15·1 answer
  • . For the reaction 2HNO3 + Mg(OH), → Mg(NO3)2 + 2H20, how many grams of magnesium nitrate are produced from 8.00 mol of nitric a
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!