Materials and their structure

Which state of matter can't be poured?

• Gas

• Solid

• Liquid

What is a compound with the formula CO called?

• Carbon monoxide

• Carbon dioxide

• Carbon oxide

• Oxygen carbonate

What is the symbol for Sodium?

• N

• S

• Na

• Sc

What is a substance made of just one kind of atom called?

The atomic number of Magnesium is ___.

• 11

• 12

• 13

• 10

Choose the correct sentence.

• The atomic number of Hydrogen is 2.

• The symbol for Oxygen is Ox.

• Carbon and Hydrogen are metals.

• Hydrogen atoms have the smallest mass.

What is the chemical formula for Sodium Chloride?

• NaOH

• NaCl

• SCl

• NaC

Is air a compound or mixture?

• Mixture

• Compound

• Both

What thing do we use for measure the temperature?

• Cylinder

• Mobile

• Meniscus

• Thermometer

How many different elements are combined in hydrogen sulfide?

• 1

• 2

• 3

• 4