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stira [4]
3 years ago
13

Which of the following reactions shows a chemical change producing a gas?

Chemistry
1 answer:
Lisa [10]3 years ago
7 0

Answer:

00000000000000000000000000000009

Explanation:

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1. If 20 moles of HCl was placed in 40 liters of an
anastassius [24]

Answer:

A) 0.50 M

Explanation:

The computation of the number of molarity of the NaOH is given below:

As we know that

Molarity = Moles ÷ liters

where

Moles is 20

And, the liters is 40

So, the molarity is

= 20 ÷ 40

= 0.50 M

hence, the molarity of the NaOH  solution is 0.50 M

Therefore the A option is correct

8 0
3 years ago
Your experiment requires 150 mL of 7.7 M NaOH. How many grams of NaOH will you need?
Elodia [21]
You have molarity and you have volume. Use the formula :
Molarity(M)= Moles(N)/Liter(L)            to get the solution. 
150 ml= .150 L
7.7 = N/.150
N=.1.155 moles of NaOH.
 And since you know the moles, use the molar mass to figure out the grams.
<span> (40g/mol NaOH) x (1.155mol) =  
46.2 g of NaOH.</span>
7 0
3 years ago
4. Nitrogen and oxygen gases react to form dinitrogen monoxide gas (N2O). What volume of O, is
solmaris [256]

Answer:

no be t ha t s had ice

Explanation:

uah an

8 0
3 years ago
In the case below, indicate the person or group that should have the authority to decide how to resolve the problem. A pesticide
Serggg [28]
All of the above

if that is not one of the choices, then A. local government
8 0
3 years ago
A bond based on intermolecular forces between hydrogen and fluorine, nitrogen, or oxygen is a _____.
Anuta_ua [19.1K]
Hydrogen Bond is the bond based on intermolecular forces between H and F O and N
7 0
4 years ago
Read 2 more answers
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