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Westkost [7]
3 years ago
14

Please help please help

Chemistry
1 answer:
otez555 [7]3 years ago
3 0

Answer:

The mass percentage of chlorine is 60.66 % chlorine in the compound sodium chloride.

Explanation:

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I need to know the independent variable and the dependent variable and control variable
Simora [160]

Independent Variable: a variable that you can change in an experiment

Dependent Variable: something that changes as you change the independent variable

control variable: something that is not changed throughout the experiment

4 0
3 years ago
Into what kinds of energy does a toaster convert electrical energy?
natima [27]
It converts the electrical entertainment into thermal energy, (heat energy) which heats the toast.
6 0
3 years ago
How many hybrid orbitals are found in CCl4? o one o two o three o four​
BlackZzzverrR [31]

Answer:

I Believe it is 4 orbitals s,p,p,p or aka sp^3

Explanation:

4 0
3 years ago
Read 2 more answers
How many moles make up 5.7491x1025 molecules of Dinitrogen pentoxide (N2O5)?
pav-90 [236]

Answer:

<h2>95.5 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{5.7491 \times  {10}^{25} }{6.02 \times  {10}^{23} }  \\

We have the final answer as

<h3>95.5 moles to 3 sig. figures</h3>

Hope this helps you

6 0
3 years ago
2 H2 + O2
cestrela7 [59]

a. The reactants are H2 and O2

b. The product is H2O

c. Yes, the reaction balanced because the number of atoms of each element is the same. It can be seen from coefficient and index on the compound

5 0
2 years ago
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