Chemistry Spring Final 25

• Basic

• Acidic

• Neutral

• water

Tags

NGSS.HS-LS2-5

As the pH decreases in the ocean what molecule is less available to make sea shells?

• Calcium Carbonate

• Water

• Carbon Dioxide

• Hydrogen

Tags

NGSS.HS-ESS2-6

If a system (chemical equation) is said to be at equilibrium then the reaction rates of the forward and backwards reaction are said to be _____.

• equal

• different

• not related

• destructive

Tags

NGSS.HS-PS1-6

What is the Molarity of a solution that has 6 moles of NaCl in 3 Liters of water?

• 2 M

• 0.5 M

• 3 M

• 4 M

When making a solution the solid that is dissolved is called the ___________ and the liquid doing the dissolving is called the __________.

• solute, solvent

• solvent, solute

• acid, base

• hydrogen, oxygen

• saturated

• unsaturated

• supersaturated

• solvent

Tags

NGSS.HS-ESS2-5

What is the molarity of a solution with 522 grams of NaCl in a 6 Liter solution? (round molar mass to the nearest 1)

• 1.5 M

• 2 M

• 15 M

• 0.67 M

The law of conservation of mass states

• Nothing ever changes

• Mass can not be created or destroyed

• Volume can not be created or destroyed

• Length can not be created or destroyed

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Tags

NGSS.HS-PS1-7

MgCO₃ → MgO + CO₂ is what type of reaction?

• Synthesis

• Single Replacement

• Double Replacement

• Decomposition

What are the coefficients for the balanced equation:

MgCO₃ → MgO + CO₂

• 1, 1, 1

• 1, 2, 1

• 2, 1, 2

• 2, 1, 1