Physical Science Third Quarter long test 1(nucleo and polarity)

Which element is the lightest and at the same time the most abundant in outer space?

• hydrogen

• helium

• lithium

• iron

Which among the choices refers to the resistance of a liquid to flow?

• boiling point

• solubility

• Viscosity

• vapor pressure

Which of the following is NOT TRUE about water? It _____________.

• becomes denser when freezes

• has high boiling point

• has high surface tension

• has low viscosity

The most accepted theory about the formation of the universe which explains that it continues to expand?

• big bang theory

• divine creation theory

• steady state theory

• oscillating theory

What type of chemical bond holds the atoms of water molecule together?

• Ionic bond

• Hydrogen bond

• Polar covalent bond

• Nonpolar covalent bond

Substances like heavy syrup and molasses flow slower than water. How is the ability of these substances to resist flow called?

• capillary action

• pressure

• surface tension

• viscosity

The following are light elements EXCEPT?

• helium

• hydrogen

• lithium

• iron

What is the ability of a substance to be dissolved in another substance to form a solution?

• boiling point

• solubility

• Viscosity

• vapor pressure

Which forces of attraction or repulsion are responsible for the bulk properties of different substances?

• covalent

• intermolecular

• intramolecular

• ionic

What element can be formed when three atoms of helium are fused?

• carbon

• hydrogen

• oxygen

• silicon