Unit 1 TEST- Chemistry

When rain freezes and turns to ice or sleet, this is an example of a

• physical property

• chemical property

• physical change

• chemical change

Two substances are combined. Gas is released, and a tall, black column forms. This is an example of a

• physical property

• chemical property

• physical change

• chemical change

Which of these is an extensive property?

• silver color

• metallic luster (shiny)

• mass of 11.34 grams

• melting point of 327°C

Properties that remain the same regardless of the amount present are called

• intensive properties

• extensive properties

• chemical properties

• physical changes

Which 2 pieces of lab equipment are used to determine the density of an object?

• ruler and graduated cylinder

• balance and graduated cylinder

• balance and beaker

• ruler and beaker

What is the density of an object having a mass of 6.5 g and a volume of 30.0 cm³?

• 0.22 g/cm³

• 4.6 g/cm³

• 195 g/cm³

• 200 g/cm³

What is the SI unit for mass?

• gram

• kilogram

• pound

• ounce

All of the following are units of volume EXCEPT

• milliliter

• liter

• cubic centimeter

• kilogram

Accuracy is best defined as

• the closeness of a measurement to the true value

• how repeatable a measurement is

How many sig figs are in the number 1.000 g?

• 0

• 1

• 2

• 4