Chemistry Semester Exam

What is the state of matter characterized by having a definite volume but no definite shape?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which subatomic particle has a positive charge?

• Electron

• Neutron

• Proton

• Positron

What is the chemical formula for water?

Tags

NGSS.MS-PS1-1

Which element is located in Group 1 of the periodic table?

• Helium

• Sodium

• Chlorine

• Argon

What is the process called when a liquid changes into a gas?

• Condensation

• Evaporation

• Sublimation

• Freezing

Which type of bond involves the sharing of electron pairs between atoms?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond

What is the atomic number of Carbon?

• 6

• 12

• 14

• 16

Which of the following is a safety rule in a chemistry lab?

• Eating and drinking are allowed

• Always wear safety goggles

• Use broken glassware

• Ignore chemical spills

What is the term for the number of protons in the nucleus of an atom?

• Atomic mass

• Atomic number

• Isotope number

• Neutron number

Which of the following is a characteristic of covalent compounds?

• High melting points

• Conduct electricity in solution

• Formed by sharing electrons

• Formed by transferring electrons

Tags

NGSS.MS-PS1-1