Chemistry

In the reaction Hydrogen peroxide yields oxygen gas + water, what are the products?

• Hydrogen peroxide, oxygen gas, and water

• Water and oxygen gas

• oxygen gas and hydrogen peroxide

• hydrogen peroxide

Tags

NGSS.MS-PS1-2

In the reaction Hydrogen peroxide yields oxygen gas + water, what are the reactants?

• Hydrogen peroxide, oxygen gas, and water

• Water and oxygen gas

• oxygen gas and hydrogen peroxide

• hydrogen peroxide

Tags

NGSS.MS-PS1-2

The nucleus of an atom contains

choose all that apply

• electrons

• protons

• neutrons

• ONLY protons

Tags

NGSS.MS-PS1-1

which of the following represents a chemical reaction

• dissolving Kool-Aid mix into water

• boiling salt water

• iron rusting

• water freezing

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

which of the following is not a physical change?

• pouring concrete

• sawing wood

• pulling nails out of a board

• burning wood

Tags

NGSS.MS-PS1-2

Identify the products in this reaction:

• Ba(CN)₂ and H₂SO₄

• BaSO₄ and HCN

• Ba(CN)₂ and HCN

• H₂SO₄ and BaSO₄

Tags

NGSS.MS-PS1-2

The amount of space something occupies

• mass

• volume

• length

• density

Is measured using a balance or scale

• mass

• volume

• length

• density

A problem solving process in which labels (units) are used to set up the problem.

• dimensional analysis

• density

• accuracy

• precision

How much mass is in a specific volume

• length

• dimensional analysis

• accuracy

• density