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Burka [1]
3 years ago
11

Developing countries use many more resources than do developed countries. True False

Chemistry
1 answer:
Svetach [21]3 years ago
8 0
I will have to say that this statement is true
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4. To how much water should 50 mL of 12 M hydrochloric acid be added to
Novosadov [1.4K]

Answer : The volume of water added are, 15 mL

Explanation :

Formula used :

M_1V_1=M_2V_2

where,

M_1\text{ and }V_1 are the initial molarity and volume of HCl.

M_2\text{ and }V_2 are the final molarity and volume of water.

We are given:

M_1=12M\\V_1=50mL\\M_2=40M\\V_2=?

Putting values in above equation, we get:

12M\times 50mL=40M\times V_2\\\\V_2=15mL

Hence, the volume of water added are, 15 mL

7 0
3 years ago
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OLEGan [10]

Answer:

Option c. 2Kl + Cl2 —> 2KCl + l2

Explanation:

A balanced equation must have the same number of atoms on the reactants side and the products side. This do the fact of the postulation by the mass conservation principle that says: Atoms can neither be broken nor destroyed but can be arranged. The atoms on the left side for each element are equal. Thus, C presents a balanced equation.

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4 years ago
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Lina20 [59]
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4 years ago
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