Review ACAP Chemistry

Pure substances include only elements, not compounds

• True - Pure substances do NOT include compounds
• False - Pure substances include both elements and compounds
• True - Compounds are considered mixtures
• False - Mixtures are also identified as pure substances

Identify the following image as a pure substance or mixture

• Mixture because it contains more than 1 type of atom that is not chemically combined
• Pure substance because it contains only 1 type of atom
• Mixture because the atoms are chemically bonded together
• Pure substance because each atom is chemically combined

Tags

NGSS.MS-PS1-1

Identify the following image as a pure substance or mixture

• Mixture because it contains more than 1 type of atom that is not chemically combined
• Pure substance because it contains only 1 type of atom
• Mixture because the atoms are chemically bonded together
• Pure substance because each atom is chemically combined

Tags

NGSS.MS-PS1-1

Identify the following image as a pure substance or mixture

• Mixture because it contains more than 1 type of atom that is not chemically combined
• Homogenous mixture because each atom is chemically combined
• Mixture because the atoms are chemically bonded together
• Pure substance because each atom is chemically combined

Tags

NGSS.MS-PS1-1

Identify the following image as a pure substance or mixture

• Mixture because it contains more than 1 type of atom that is not chemically combined
• Homogenous mixture because each atom is chemically combined
• Mixture because the atoms are chemically bonded together
• Pure substance because there is only 1 type of atom

Tags

NGSS.MS-PS1-1

An unknown substance is in a beaker. A student makes several observations. One of their observations is listed below. Based on their observation what you can identify the unknown substance as?

• Mixture because it can be separated by a physical process
• Pure substance because it can be separated by a physical process

Tags

NGSS.MS-PS1-2

Identify the following image as a pure substance or mixture

• Mixture because it contains more than 1 type of atom that is not chemically combined
• Pure subtance because all the atoms are chemically combined
• Mixture because the atoms are chemically bonded together
• Pure substance because there is only 1 type of atom

Tags

NGSS.MS-PS1-1

How many protons are in an atom of Bromine?

• 115
• 80
• 45
• 35

Silver (Ag) has 47 protons in each atom. Based on this information, which of the following also describes an atom of silver?

• It has no neutrons
• It has 23 neutrons and 24 electrons
• It has a total of 94 neutrons and electrons
• It has 47 electrons

Tags

NGSS.MS-PS1-1

The following equations represent different chemical reactions Which equation shows the total mass during a chemical reaction stays the same?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-5