2.0 CA in-class practice (20 q's) 2023

Which image represents particles of a mixture? (select all that apply)

• A

• B

• C

• D

What type of bond is MgMn?

• covalent

• ionic

• metallic

How many hydrogen are in 4 H₂O?

Tags

NGSS.MS-PS1-1

If the volume of a sample of ethanol is 74.1 mL, the mass of the sample is _____ g.

What type of bond is Al₂(SO₄)₃?

• covalent

• ionic

• metallic

What type of reaction is: 2 As + 6 NaOH --> 2 Na₃AsO + 3 H₂

• combustion

• synthesis

• decomposition

• single replacement

• double replacement

How many oxygen are in H₂O?

Tags

NGSS.MS-PS1-1

Which image represents particles of an element?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

If the mass of a sample of lead is 510.76 grams, the volume of the sample is _____ cm³.

Which substance listed would be the most basic?

• blood

• pure water

• coffee

• detergent