Chemical Formulas

Chemical Formulas

Assessment

Flashcard

Chemistry, Science

7th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a Chemical Formula?

Back

A Chemical Formula describes the atoms in a compound, indicating the types and numbers of atoms present.

2.

FLASHCARD QUESTION

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that in a chemical reaction, the total mass of the reactants equals the total mass of the products.

3.

FLASHCARD QUESTION

Front

How many grams of reactant B are needed if reactant A has 5g and product C has 9g in the reaction A + B -> C?

Back

4g

4.

FLASHCARD QUESTION

Front

If a reaction starts with 20g of reactants, how much should it produce?

Back

A total of 20g of products.

5.

FLASHCARD QUESTION

Front

What is a Compound?

Back

A Compound is a substance formed by atoms of different kinds.

6.

FLASHCARD QUESTION

Front

How many elements are in the chemical formula C6H12O6?

Back

3 elements (Carbon, Hydrogen, and Oxygen).

7.

FLASHCARD QUESTION

Front

What does a Coefficient in a chemical equation represent?

Back

A Coefficient indicates the number of molecules or moles of a substance involved in a reaction.

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