Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
Examples of reactions could include burning sugar or steel wool, fat reacting with sodium hydroxide, or mixing zinc with hydrogen chloride. Examples of chemical and physical properties to analyze include density, melting point, boiling point, solubility, flammability, or odor.
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Q 1/15
Score 0
What is the term for a substance formed as a result of a chemical reaction?
30
Element
Compound
Reactant
Product
Q 2/15
Score 0
Which of the following indicates a chemical reaction has occurred?
30
The mass increases
The temperature remains the same
Bubbles of gas form
The color appears unchanged
15 questions
Q.
What is the term for a substance formed as a result of a chemical reaction?
1
30 sec
Q.
Which of the following indicates a chemical reaction has occurred?
2
30 sec
Q.
What happens to the atoms in a chemical reaction?
3
30 sec
Q.
Which of the following best describes a physical change?
4
30 sec
Q.
What is an example of an indicator of a chemical reaction?
5
30 sec
Q.
What is produced during a chemical reaction?
6
30 sec
Q.
Which of the following is an example of a chemical change?
7
30 sec
Q.
Which of the following is NOT a sign of a chemical reaction?
8
30 sec
Q.
What is an example of a chemical change?
9
30 sec
Q.
What happens to the mass of a substance during a chemical reaction according to the law of conservation of mass?
10
30 sec
Q.
After burning a piece of sugar, a student notices that the white substance has turned black and produced a sweet-smelling gas. What property change indicates a chemical reaction has occurred?
11
30 sec
7-MS-PS1-2
Q.
A student mixes zinc with hydrogen chloride and observes fizzing and the release of a gas. What conclusion can be drawn from these observations?
12
30 sec
7-MS-PS1-2
Q.
After mixing two clear solutions, a student observes that the liquid becomes cloudy and a solid precipitate forms at the bottom. What does this observation suggest?
13
30 sec
7-MS-PS1-2
Q.
After a reaction between vinegar and baking soda, a gas is produced, causing bubbling. Which property change confirms a chemical reaction has taken place?
14
30 sec
7-MS-PS1-2
Q.
When boiling water is mixed with a soluble solid, there is no temperature change but the solid dissolves completely. What type of change has occurred?
