Compounds, Elements and Mixtures Test

Odor production, change in temperature, change in color, bubbles, and formation of solid are signs of ____

• chemical change
• physical change

Which of the following is a chemical change?

• distillation
• rotting
• crystallization
• vaporization

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a compound?

• oxygen
• gold
• lead
• water

Tags

NGSS.MS-PS1-1

Which of the following is a physical property?

• luster
• ability to react with water
• flammability
• ability to explode in air

Which of the following isn't a mixture?

• brass (alloy)
• salt water
• kool-aid
• sodium chloride

What is the dissolved substance in a solution

• solute
• solvent

What is an atom with the same number of protons but different number of neutrons?

• ion
• isotope

An isotope -Carbon has 6 protons, 6 electrons and 8 neutrons. What is the mass number?

• 12
• 13
• 14

Which of the following an element?

• chex mix
• carbon
• carbon dioxide
• salt water

Which of the following wouldn't have the same quantity in an isotope of neutral atom?

• atomic number
• number of electrons
• number of protons
• mass number