3rd 6 weeks Test Review

What does the Law of Conservation of Mass tell us about the reactants and products in a chemical reaction?

• Mass is consumed during a chemical reaction

• Mass is never created or destroyed during a chemical reaction.

• Sometimes mass is created during a chemical reaction.

• Sometimes mass is destroyed in a chemical reaction.

Answer explanation

The Law of Conservation of Mass states that during a chemical reaction, mass is neither created nor destroyed.

Tags

NGSS.HS-PS1-7

What can you increase to make most substances more soluble?

• Particle Size

• Density

• Temperature

• Polarity

Answer explanation

Increasing the temperature makes most solid solutes more soluble.

A form of an element with the same number of protons, but a different number of neutrons:

• Ionic

• Noble Gas

• Alkali Metal

• Isotope

Tags

NGSS.HS-PS1-8

The amount of time it takes for half of the nuclei of a radioactive substance to decay

• Isotopic Harmonic

• Full Term Nuclear Radiation

• Radiaoactive Half Life

• Half Term Nuclear Radiation

Tags

NGSS.HS-PS1-8

In a solution of salt water, the salt is the _______.

In a solution of salt water, the water is the _______.

A Supersaturated Solution is:

• A solution with exactly the right amount of solute in the solvent.

• A solution with more than the maximum amount of solute in the solvent at a given temperature.

• A solution with less than the maximum amount of solute in the solvent at a given temperature.

• A solution with more than the maximum amount of solvent in the solution at a given temperature.

What is the biggest problem with nuclear energy?

• Exposure to radiation.

• Danger of nuclear accidents.

• Expense of mining Uranium.

• Storage of the waste.

Tags

NGSS.HS-ETS1-3

Holds the protons and neutrons together in the nucleus of an atom.

• Strong Force

• Electromagnetic Force

• Gravity Force

• Weak Force

Causes protons to repel eachother.

• Strong Force

• Electromagnetic Force

• Gravity Force

• Weak Force