Unit 1 Review B: Basic Chem, Water, pH

Which 3 particles make up an atom?

• Protons, neutrons, electrons

• Neutrons, isotopes, electrons

• Positives, negatives, electrons

• Protons, isotopes, electrons

Tags

NGSS.MS-PS1-1

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Electron

• Ion

Carbon can form 4 bonds because it has:

• 4 protons

• 4 electrons in its outer shell

• 4 nuclei

• 4 neutrons

Tags

NGSS.MS-PS1-1

What kind of bond shares electrons between atoms?

• Ionic

• Covalent

• Hydrogen

• Metallic

What kind of bond transfers electrons between atoms?

• Ionic

• Covalent

• Hydrogen

• Peptide

Why is water polar?

• Both ends are positive

• Both ends are negative

• Oxygen is negative, hydrogens are positive

• Oxygen is positive, hydrogens are negative

Which property allows water molecules to stick to each other?

• Cohesion

• Adhesion

• Capillary action

• Solvency

Which property allows water molecules to stick to other substances?

• Cohesion

• Adhesion

• Surface tension

• Density

Why does ice float on water?

• Ice has more mass

• Ice is denser than liquid water

• Ice is less dense due to hydrogen bonding

• Ice contains fewer atoms

Which water property helps regulate Earth’s climate?

• High specific heat capacity

• Cohesion

• Adhesion

• Surface tension

Tags

NGSS.MS-ESS2-6