Physical Science Final Review

• 19°C

• 31°C

• 49°C

• 77°C

Tags

NGSS.MS-PS1-4

Atoms of the same element with different numbers of neutrons are called ___________.

• isotopes

• alpha particles

• radioactive atoms

• beta particles

The half-life of Carbon-14 is 5,730 years. After 34,380years, how much would be left if you started with a sample of 3600 grams?

• 6 g

• 56.25 g

• 112.5 g

• .22 g

What is the atomic number of Sodium?

• 1

• 3

• 11

• 23

What is the mass number of Carbon?

• 8

• 12

• 6

• 2

How many energy levels are in a Neon atom?

• 8

• 20

• 10

• 2

Tags

NGSS.HS-PS1-1

A substance that speeds up a chemical reaction without being permanently changed itself is a(n) ____.

• reactant

• coefficient

• catalyst

• inhibitor

A chemical reaction in which two or more substances combine to form another substance is called a

• synthesis

• decomposition

• reactant

• product

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-1

A chemical reaction in which thermal energy is released is ____.

• flammable

• formula

• endothermic

• exothermic

In the reaction, Na + Cl NaCl, how many grams of NaCl would be formed from 12 grams of Na and 9 grams of Cl?

• 1.3 g

• 3 g

• 21 g

• 108 g

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2