Chemistry and Metric System Practice Review

Comprehensive practice question-and-answer flashcards covering metric conversions, chemistry calculations, periodic table trends, states of matter, gas laws, and vocabulary.

What is the basic unit of length in the metric system?

Meter

What is the basic unit of mass in the metric system?

Kilogram

What is the basic unit of volume in the metric system?

Milliliter (or Liter)

Which unit of volume is represented by the abbreviation "ml"?

Milliliter

What is $1\,\text{kilometer}$ equivalent to in meters and miles?

$1000\,\text{meters}$ ($0.62\,\text{miles}$)

Which metric prefix represents $10^{-6}$ of a unit?

micro

How many grams are equal to $0.1\,\text{dg}$?

$$0.01\,\text{g}$$

How many liters are in $325\,\text{dL}$?

$$32.5\,\text{L}$$

How many decigrams (dg) are in $0.015\,\text{kg}$?

$$150\,\text{dg}$$

How many centiliters (cL) are equal to $8.25\,\mu\text{L}$?

$$0.000825\,\text{cL}$$

How many meters are in $29\,\text{mm}$?

$$0.029\,\text{m}$$

If $1\,\text{ounce} = 28.35\,\text{grams}$, how many grams are in $0.5\,\text{ounce}$?

About $14.17\,\text{g}$

If $1\,\text{inch} = 2.54\,\text{cm}$, how many centimeters are in $11\,\text{inches}$?

$$27.94\,\text{cm}$$

How many liters are present in $100\,\text{cc}$?

$$0.1\,\text{L}$$

If $1\,\text{liter} = 1.06\,\text{qt}$, how many quarts are in $20\,\text{liters}$?

$$21.2\,\text{qt}$$

If $2.20\,\text{lb} = 1\,\text{kilogram}$, how many kilograms are in $160\,\text{lb}$?

$$72.72\,\text{kg}$$

Which is the larger unit between a quart and a liter?

Liter

If $40.00\,\text{mL}$ of alcohol weighs $42.42\,\text{g}$, what is the density of the alcohol?

$$1.06\,\text{g/mL}$$

If a wooden block has a volume of $1000\,\text{cc}$ and weighs $100\,\text{grams}$, what is its density?

$$0.1\,\text{g/cc}$$

The density of cement is $3.0\,\text{g/mL}$. How many kilograms of cement are needed to fill a volume of $1000\,\text{cc}$?

$$3\,\text{kg}$$

The density of gold is $19.3\,\text{g/mL}$. How many grams of gold are needed to make a bar measuring $10\,\text{cm} \times 10\,\text{cm} \times 20\,\text{cm}$?

$$38,600\,\text{g}$$

The density of aluminum is $2.7\,\text{g/mL}$. What is the volume in mL of $54.0\,\text{grams}$ of Al?

$$20\,\text{mL}$$

The density of water is $1.0\,\text{g/mL}$. How many liters of water are needed to fill a pool that holds $1,000,000\,\text{kg}$ of water?

$$1,000,000\,\text{L}$$

What Kelvin temperature corresponds to $22^\circ\text{C}$?

$$295\,\text{K}$$

What Celsius temperature corresponds to $243\,\text{K}$?

$$-30^\circ\text{C}$$

Are Sc, Y, and Ac members of a period or a family on the periodic table?

Family

What is group VIIA on the periodic chart commonly called?

Halogens

What are the "B" group elements on the periodic table called?

Transition metals

What is the atomic number of nitrogen?

$$7$$

What is the approximate atomic mass of potassium?

$$39\,\text{amu}$$

Which of the following elements is not diatomic: $O_2$, $F_2$, or $B_2$?

$$B_2$$

What are the chemical symbols for Phosphorus, Potassium, Mercury, Iron, and Lead?

Phosphorus: P, Potassium: K, Mercury: Hg, Iron: Fe, Lead: Pb

What are the chemical symbols for Fluorine, Copper, Cobalt, and Antimony?

Fluorine: F, Copper: Cu, Cobalt: Co, Antimony: Sb

What elements correspond to the chemical symbols Sr, Si, Ni, Ag, and Mg?

Sr: Strontium, Si: Silicon, Ni: Nickel, Ag: Silver, Mg: Magnesium

What elements correspond to the chemical symbols Al, Au, Sn, and Na?

Al: Aluminum, Au: Gold, Sn: Tin, Na: Sodium

For the compound $(NH_4)_3PO_4$, how many elements are present, how many total atoms are present, and what is its molecular mass?

$4$ elements, $20$ total atoms, molecular mass of $149\,\text{amu}$

For the compound $Na_2B_4O_7$, how many elements are present, how many total atoms are present, and what is its molecular mass?

$3$ elements, $13$ total atoms, molecular mass of $201.2\,\text{amu}$

Are elements, molecules, and compounds examples of homogeneous or heterogeneous substances?

Homogeneous

Is luster classified as a physical property or a chemical property?

Physical property

Is dissolving evidence of a chemical change?

No, dissolving is an example of a physical change.

What law states that in a chemical change, matter is neither created nor destroyed?

Law of Conservation of Matter (Mass)

Which state of matter has particles constantly moving at high velocities and low density?

Gas

Which state of matter has a definite volume but no definite shape?

Liquid

Which state of matter limits particle motion to vibration about a fixed point?

Solid

According to the gas laws, if amount ($n$) and temperature are constant, what happens to pressure when volume goes down?

Pressure goes up

According to the gas laws, if pressure and amount ($n$) are constant, what happens to temperature when volume goes down?

Temperature goes down

What is the amount of heat energy required to raise the temperature of $1\,\text{g}$ of water by $1^\circ\text{C}$ called?

Calorie

What term describes the "thickness" of a liquid or its tendency to flow?

Viscosity

What is the process of a solid transitioning directly to the gas phase without becoming a liquid called?

Sublimation

What is the density of a substance compared to the density of water called?

Specific gravity

What is the energy required to change $1\,\text{g}$ of water from ice to liquid water called?

Heat of fusion

What is a chemical used in an experiment called?

Reagent

what’s the law of definite composition

In a specific chemical compound, the elements are present in a fixed percentage by weight

what’s the law of conservation of matter (mass)

In chemical change, matter is not created or destroyed, mass is conserved

what’s the law of conservation of energy

In a chemical change, energy is neither created nor destroyed, only converted from one form to another.

Boyle’s law means?

pressure is inversely proportional to volume at a constant temp

Charles’ law means?

volume directly proportional to its temperature at constant pressure.

Gay-Lussac’s Law means?

Pressure is directly proportional to temperature at constant volume.

Avogadro’s Law mean?

#of moles is directly proportional to the volume at constant temperature and pressure.

C to K is?

#C + 273= K

K to C is?

#K - 273= C