Benchmark #1 Review Question Preview (ID: 39751)
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What is the charge of an electron?
a) positive
b) negative
c) no charge
d) neutral
The most abundant element/gas in our atmosphere is..
a) Oxygen.
b) Carbon.
c) Nitrogen.
d) Helium.
How do you know how many atoms are in a chemical formula?
a) mass number - atomic number
b) Look at the atomic number.
c) Find the number of neutrons.
d) Add all the subscripts together.
Two or more elements chemically combine to form...
a) compounds
b) mixtures
c) halogens
d) transition metals
How many total atoms are in the formula for chalk?
a) 1
b) 4
c) 5
d) 6
Parts of a(n) CAN BE separated.
a) element
b) mixture
c) compound
d) pure substance
During an experiment, what is measured is the ___________ variable.
a) manipulated
b) independent
c) dependent
d)
When something new is produced, a ____________ change has occurred.
a) chemical
b) physical
c) property
d) mechanical
To find protons, look at the...
a) atomic mass
b) atomic number
c) mass number
d) chemical symbol
Which of the following resources is renewable, meaning it can be replaced quickly?
a) coal
b) oil (petroleum)
c) solar energy
d) natural gas
A rock was placed in 30 mL of water. The water level increased to 35 mL. The volume of the rock is...
a) 35 mL
b) 65 mL
c) 5 mL
d) -5 mL
Which statement is false?
a) Group 18 contains the noble gases.
b) Rows of elements are called groups.
c) Na is the symbol for sodium.
d) Potassium is an alkali metal.
Things that you have to plug in start out with what form of energy?
a) chemical
b) thermal
c) mechanical
d) electrical
not a fossil fuel
a) coal
b) oil
c) biomass
d) natural gas
the variable that the scientist changes; the one the scientist is testing
a) independent
b) dependent
c) controlled
d)
a moving roller coaster has that FORM of energy and this STATE of energy
a) mechanical and potential
b) mechanical and kinetic
c) chemical and kinetic
d) kinetic and potential
The elements that make up a sugar molecule are Carbon, Hydrogen, and Oxygen? Which symbol is not in the formula?
a) C
b) Ca
c) O
d) H
mass/volume is the formula for..
a) energy
b) change
c) density
d) turbidity
Graduated cylinders and beakers are used to measure...
a) volume.
b) mass.
c) weight.
d) temperature.
At its highest point in the air, a baseball would have the greatest...
a) EPE
b) KE
c) GPE
d) GSU
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