Chemistry SAT

Which of the following is considered matter

• Light

• Smoke

• Waves

• heat

Which of the following is physical property

• rust formation on iron

• Burning of wood log

• Silver losing its shine

• Copper conducting electricity

The evaporation of solid without melting

• evaporation

• condensation

• melting

• sublimation

Tags

NGSS.MS-PS1-4

Type of reaction in

2𝑁𝑎(𝑠) + 𝐶𝑙 ----> 2𝑁𝑎𝐶𝑙(𝑠)

• A) synthesis

• B) dissociation

• C) combustion

• D) decomposition

Milk and blood are from

• colloids

• suspensions

• Homogenous mixtures

• solutions

random movement of solute particles in a colloid

• a) A circular motion

• b) B colloidal motion

• c) C Vibratory motion

• d) D Brownian motion

A Solid is separated from a liquid by

• a) Filtration

• b) Analysis

• c) Distillation

• d) Chromatography

The percent by mass of a solution containing 10 g of dissolved solute in 40g of

water

• 25%

• 20%

• 50%

• 40%

a solution has a 100ml volume and the number of moles of the solute is 1 mol what is the molarity of this solution

• 0.1

• 0.2

• 10

• 100

The solubility of gas in liquid increases by

• a) Decreasing pressure

• b) Increasing agitation

• c) Decreasing temperature

• d) Increasing volume