Elscores: Tuesday, 20 August 2024
Chemistry Cumulative Exam Review
Questions and Correct Answer
Which of the following questions can be answered by science?
✓ :-- what is the composition of air
which of the following questions can be answered by science?
✓ :-- is fruit ripening dependent on the type of light the fruit is exposed to
which of the following is the unit of length in the metric system
✓ :-- meter
which of the following is a unit of mass in the metric system
✓ :-- gram
which of the following is a unit of volume in the metric system
✓ :-- liter
A leaky faucet can waste 3,000 gallons of water per year. which of the following is correct to
convert the water wasted to liters/month (1 gallon=3.8 liters)
✓ :-- multiply 3,000 by 3.8 and divide the result obtained by 12
which of the following types of energy does an object have because of its position
✓ :-- potential energy
DO NOT COPY AND PASTE!!
, Elscores: Tuesday, 20 August 2024
the atoms and molecules in a gas are in constant motion. temperature is a measure of this
motion. How are these related?
✓ :-- As temperature increases the molecules and atoms move faster
the atoms and molecules in a liquid are in constant motion. As temperature decreases what is
true of the particles in the liquid
✓ :-- the rate of particle movement decreases
the following properties are either physical or chemical. which one os different from the rest
based on those two categories
✓ :-- density
which of the following could result from a substance that undergoes a physical change
✓ :-- its shape is altered
which of the following is a property of a pure substance
✓ :-- It is made up of a single element or type of compound
ted used a balance scale to weigh a 2.233 g sample of copper sulfate. which of these
measurements made by ted is the most accurate
✓ :-- 2.2g
Isotopes of the same element have different numbers of _________
✓ :-- neutrons
DO NOT COPY AND PASTE!!
, Elscores: Tuesday, 20 August 2024
Modern atomic theory states that atoms are neutral. how is this neutrality achieved
✓ :-- equal numbers of protons and electrons
what is true when an ion is formed
✓ :-- there is an unequal number of electrons and protons
what is true of electrons
✓ :-- they are negatively charged and located outside the nucleus
what is true of protons
✓ :-- they are positively charged and located inside the nucleus
what is true about nutrons
✓ :-- they have no charge and are located inside the nucleus
The modern atomic theory has been updates over the years as new observations of the atom
have been made, what do thgese changes say about the strength of the modern atomic theory
✓ :-- The changes make the theory stronger because it has been tested and edited
multiple times, making it more durable
Which tyoes of electromagnetic radiation has a shorter wavelength than blue light
✓ :-- xryas
which type of electromagnetic radiation has a lower frequency than infrared radiation
DO NOT COPY AND PASTE!!
Chemistry Cumulative Exam Review
Questions and Correct Answer
Which of the following questions can be answered by science?
✓ :-- what is the composition of air
which of the following questions can be answered by science?
✓ :-- is fruit ripening dependent on the type of light the fruit is exposed to
which of the following is the unit of length in the metric system
✓ :-- meter
which of the following is a unit of mass in the metric system
✓ :-- gram
which of the following is a unit of volume in the metric system
✓ :-- liter
A leaky faucet can waste 3,000 gallons of water per year. which of the following is correct to
convert the water wasted to liters/month (1 gallon=3.8 liters)
✓ :-- multiply 3,000 by 3.8 and divide the result obtained by 12
which of the following types of energy does an object have because of its position
✓ :-- potential energy
DO NOT COPY AND PASTE!!
, Elscores: Tuesday, 20 August 2024
the atoms and molecules in a gas are in constant motion. temperature is a measure of this
motion. How are these related?
✓ :-- As temperature increases the molecules and atoms move faster
the atoms and molecules in a liquid are in constant motion. As temperature decreases what is
true of the particles in the liquid
✓ :-- the rate of particle movement decreases
the following properties are either physical or chemical. which one os different from the rest
based on those two categories
✓ :-- density
which of the following could result from a substance that undergoes a physical change
✓ :-- its shape is altered
which of the following is a property of a pure substance
✓ :-- It is made up of a single element or type of compound
ted used a balance scale to weigh a 2.233 g sample of copper sulfate. which of these
measurements made by ted is the most accurate
✓ :-- 2.2g
Isotopes of the same element have different numbers of _________
✓ :-- neutrons
DO NOT COPY AND PASTE!!
, Elscores: Tuesday, 20 August 2024
Modern atomic theory states that atoms are neutral. how is this neutrality achieved
✓ :-- equal numbers of protons and electrons
what is true when an ion is formed
✓ :-- there is an unequal number of electrons and protons
what is true of electrons
✓ :-- they are negatively charged and located outside the nucleus
what is true of protons
✓ :-- they are positively charged and located inside the nucleus
what is true about nutrons
✓ :-- they have no charge and are located inside the nucleus
The modern atomic theory has been updates over the years as new observations of the atom
have been made, what do thgese changes say about the strength of the modern atomic theory
✓ :-- The changes make the theory stronger because it has been tested and edited
multiple times, making it more durable
Which tyoes of electromagnetic radiation has a shorter wavelength than blue light
✓ :-- xryas
which type of electromagnetic radiation has a lower frequency than infrared radiation
DO NOT COPY AND PASTE!!
