Chemistry Final Exam

0.095 cm is the same as

• 0.95 mm.

• 95 m.

• 0.095 m.

• 0.0095 mm.

What are the coefficients when the equation above is correctly balanced? Fe2O3 + ___CO → ___Fe + ___CO2

• 0,2,2,3

• 1,2,2,2

• 1,3,2,3

• 2,6,4,3

Tags

NGSS.HS-PS1-7

If 1 mile equals 1.61 km, how many kilometers are in 3570 yards? (1 mile = 1760 yards)

• 1.42 km

• 0.0825 km

• 30.7 km

• 3.27 km

Which of these metric units would you use to measure volume?

• L

• kg

• mg

• m

Which of the following particle drawings represent a pure substance?

• a)

• b)

• c)

• d)

Tags

NGSS.HS-PS1-3

Using the heating curve above, determine the melting point for this substance.

• 120 °C

• 100 °C

• 80 °C

• 70 °C

Tags

NGSS.MS-PS1-4

Which of the following is an example of a chemical property?

• reactivity with oxygen

• boiling point

• texture

• mass

Tags

NGSS.HS-PS1-1

What type of matter is formed when two or more elements are chemically combined?

• heterogeneous mixture

• homogeneous mixture

• pure substance

• a solution

Tags

NGSS.HS-PS1-1

Valence electrons are s- and p- electrons

• in the highest energy level.

• combined with all neutrons.

• closest to the nucleus.

• in the lowest energy level.

Tags

NGSS.HS-PS1-1

How many protons, neutrons, and electrons are there for the following element?

• p=26, n=22, e=22

• p=22, n=26, e=20

• p=26, n=22, e=26

• p=22, n=26, e=22

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2