Midterm

An atom becomes _________ when it gains electrons.

• Positive

• Negative

• Neutral

• Invinsible

Choose the correct shape for this molecule:

• linear

• Trigonal pyramidal

• Bent

• Tetrahedral

Tags

NGSS.MS-PS1-1

The chemical representation for baking soda plus vinegar (combination B) is NaHCO3 + CH3COOH. For baking soda, there is one sodium (Na) atom, one hydrogen atom, one carbon atom, and three oxygen atoms. For vinegar, there are four hydrogen atoms, two carbon atoms, and two oxygen atoms. Which of the following could be the representation for the product after baking soda & vinegar are combined?

• H20 + NaC2H3O2

• CO2 + NaC2H3O2

• H2O +CO2+NaC2H3O2

• H2O+CO2+C2H3O2

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If the amount of atmospheric carbon is increasing, then the amount of carbon in other stages of the carbon cycle must be __________.

(choices are increasing, decreasing, or constant) SPELLING COUNTS!

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

If the amount of atmospheric carbon is increasing, then the amount of carbon in other stages of the carbon cycle must be decreasing because the total amount of carbon in the carbon cycle must be ________.

Tags

NGSS.MS-LS2-3

How do currents off the coast of Florida & Alaska compare?

• Although they are both warm currents, the one off of Florida's coast has less energy.

• Although they are both cold currents, the one off of Alaska's coast has more energy.

• Although they are both cold currents, the one off of Alaska's coast has less energy.

• Although they are both warm currents, the one off of Florida's coast as more energy.

Which two subatomic particles make up the nucleus of an atom?

• Protons and Electrons

• Neutrons and Electrons

• Electrons and Protons

• Protons and Neutrons

Tags

NGSS.MS-PS1-1

What is the chemical formula for water?

Tags

NGSS.MS-PS1-1

Which of the following is a renewable energy source?

• Coal

• Natural Gas

• Solar Energy

• Nuclear Energy

What is the acceleration due to gravity on Earth?

• 9.8 m/s^2

• 8.9 m/s^2

• 10.5 m/s^2

• 7.8 m/s^2