In a lab, a student dissolves 6.9 g of sodium chloride (NaCl) in 125 g of water (H2O).

Chemistry

1 answer:

kati45 [8]2 years ago

5 0

Hope it cleared your doubt.

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1. Which of the following correctly represents a balance chemical equation? (a) NaCl + 2H2O → 2NaOH + 2Cl2 + H2 (b) 2NaCl+H2O →

butalik [34]

Answer:

thx sa points

Explanation:

8 0

2 years ago

water absorbs and releases large amounts of heat before its temperature changes because water has a high

barxatty [35]

Waters high heat capacity is a property focused by hydrogen bonding among water molecules.When heat is absorbed,hydrogen bonds are broken and water molecules can move freely.When the temperature of water decreases, the hydrogen bonds are formed and release a considerable amount of energy

8 0

2 years ago

A solution

timurjin [86]

The answer to your question is C. A solution is a homogeneous mixture composed of two or more substances, so it couldn't have been A and D. Since a solution can't have its substances separated by a chemical means because they are chemically bonded, thus they are able to be separated by physical means

3 0

2 years ago

Protons, neutrons, and electrons all have similar masses. explain why this statement is false.

yan [13]

It is false because electrons have no mass.

6 0

2 years ago

Physical science!!! please help

IgorLugansk [536]

Answer:

The correct answer is : No, because there are 4 hydrogen atoms on the reactants side and 2 on the products side.

Explanation:

$NH_4NO_3\rightarrow N_2O+H_2O$

The given reaction equation is not balanced because:

Number of hydrogen atoms on both sides are not equal that is 4 on reactants side and 2 on products side.
Number of oxygen atoms on both sides are not equal that is 3 on reactants side and 2 on products side.

In a balanced chemical equation number of atoms of each elements are equal on both sides.

So, the balanced chemical equation will be:

$NH_4NO_3\rightarrow N_2O+2H_2O$

7 0

3 years ago