Ch 6F Chemistry Workbook Quiz

Which of the following is defined as anything that occupies space (volume) and has mass (weight)?

• atoms

• molecules

• matter

• elements

There are 118 different elements known to science today. How many of these are naturally occurring on Earth?

• 116

• 98

• 50

• 76

Which of the following are the basic building blocks of all matter?

• electrons

• protons

• molecules

• atoms

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NGSS.MS-PS1-1

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The letter H stands for the element ____________.

• Hydrogen
• Hydroxide

• Hydrophilic

• Helium

An example of an elemental molecule is ____________.

• hydrogen peroxide

• common table salt

• water

• the oxygen in the air

Tags

NGSS.MS-PS1-1

As the basic unit of matter, __________ cannot be divided into simpler substances by ordinary chemical means.

• molecules

• oxygen

• atoms

• water

Rusting iron and burning wood are examples of a change in what type of properties?

• chemical

• physical

• mechanical

• electrical

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NGSS.MS-PS1-2

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An example of a physical change is __________.

• rusting iron

• ice melting into water

• burning wood

• oxidation

An example of a chemical change is __________.

• water changing into ice

• ice melting to water

• the oxidation of haircolor products

• temporary haircolor

Tags

NGSS.MS-PS1-2

Which of the following is an example of a pure substance?

• salt
• concrete

• powder

• salt water

Tags

NGSS.MS-PS1-4