Reactions 23

Reactions 23

10th Grade

25 Qs

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Reactions 23

Reactions 23

Assessment

Quiz

Chemistry

10th Grade

Medium

Created by

Jacob Thomas

Used 6+ times

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

A substance that is formed as the result of a chemical reaction is a __________________

Product

Reactant

Starters

Enders

2.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Which one shows that a chemical reaction has occurred?

dissolving

melting

formation of a gas

bending

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

the starting materials in a chemical reaction

Products
Reactants
Starters
Enders

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Mg and O
MgO
Mg and MgO
O and MgO

5.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?

The shape of the coal changes
Oxygen is present
A new substance is produced
Coal is made up of more than one element

6.

MULTIPLE CHOICE QUESTION

15 mins • 5 pts

A teacher is demonstrating physical and chemical changes to her class. Which action should she use to demonstrate a chemical change?

cutting a piece of paper
folding a piece of paper
tearing a piece of paper
burning a piece of paper

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

In a chemical reaction, the number of atoms in the reactants and the products...

Must be the same

Must be different

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