Chemical reactions and energy quiz

Substances that form as the result of a chemical reaction

• products
• reactants
• coefficients
• subscripts

Tags

NGSS.MS-PS1-2

Substances present at the start of a chemical reaction

• subscripts
• coefficients
• reactants
• products

A candle wick burning is an example of a _________________________

• physical reaction
• condensation
• neutrons
• chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A product is on the left and right

• False

• True

What are the products of the chemical reaction pictured?

• CH₄ and CO₂

• CH₄ and O₂

• CO₂ and 2H₂O

• O₂ and H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the left part of a chemical equation called?
H_{2 +} O → H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

2H₂ + O₂ ----> 2H₂O What is the product?

• ------>
• 2H₂O
• 2H₂+ O₂

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which of the following categories of reactions can be used to classify both physical and chemical changes? (Multiple Response-MR)

• endergonic

• endothermic

• exergonic

• exothermic

Tags

NGSS.MS-PS3-4

An _______ reaction is when more thermal energy is absorbed than is released.

• endothermic

• endergonic

• exothermic

• exergonic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

An _______ reaction is when more thermal energy is released than is absorbed.

• endothermic

• endergonic

• exothermic

• exergonic

Tags

NGSS.MS-PS3-4