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2 years ago

Which statement about the balanced equations for nuclear and chemical changes is correct? (1 point)

Chemistry

2 answers:

Juli2301 [7.4K]2 years ago

4 0

Answer:

last option. A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the total mass before and after the change.

Explanation:

took the test.

iris [78.8K]2 years ago

3 0

The true statement about the balanced equations for nuclear and chemical changes is; both are balanced according to the total mass before and after the change.

A basic law in science is called the law of conservation of mass. Its general statement is that mass can neither be created nor destroyed.

Both in chemical and nuclear changes, mass is involved and in both cases, the law of conservation of mass strictly applies.

This means that for both chemical and nuclear changes; total mass before reaction must be equal to total mass after reaction.

Hence, both reactions are balanced according to the total mass before and after the change.

Learn more: brainly.com/question/22064431

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A student dropped a piece of nickel metal into a solution of HCl(aq). He observed the formation of gas bubbles and collected the

omeli [17]

Answer:

a. The student performed the splint test incorrectly. He should of observed a popping sound when the splint was placed in the test tube.

Explanation:

It is given that a student performed an experiment where he dropped a nickel metal in to HCl solution. He observed the reaction and performed a splint test in the test tube that is filled with a gas which is formed while Nickle is dropped into the solution of HCl.

But the experiment that the student performed was incorrect. He must have observed the popping sound when the splint was placed in the test tube.

When the splint was added to the gas splint flared up. The hydrogen gas pops out when exposed to the flame.

$Ni + HCl(aq) = NiCl + H_2$

Thus the correct option is (a).

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2 years ago

Can anyone do this question.i really need a answer

PilotLPTM [1.2K]

Answer:

17.4

Explanation:

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16.2

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7 0

3 years ago

Which waves have some electrical properties and some magnetic properties?

kicyunya [14]

D. electro magnetic waves. it’s literally in the name

8 0

3 years ago

This means that if there are 15.0 g of starting chemicals, also known as

Serggg [28]

Answer:

Reactants

Explanation:

"Starting chemicals", the substances present before a reaction occurs, are called reactants.

The results of the reaction are called products, which you would also have 15.0g.

4 0

2 years ago

Given the reaction: S + O2 ---> SO2

saul85 [17]

Answer: 67.1 moles of SO2

Explanation:

Since the equation is already balanced, you would just need to cancel out the O2 and multiple the 67.1 mol by the 1 mol of SO2 to get your answer.

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3 years ago