A
When you move the point in scientific notation to the right the exponent is _____________.
positive
What is the charge of the electron? What is the charge of the proton?
negative/positive
What term is related to the exact value?
accuracy
Which term has to do with the repeatability of a measurement?
precision
Which is the subatomic particle that has no electrical charge?
neutron
Which is the particle that identifies an atom of a given element?
proton
What term refers to energy that is possessed by matter due to its motion?
kinetic energy
What is a group of two or more atoms linked together by chemical bonds?
molecule
How many significant figures the following number has: 5,000.00
6
What is the smallest particle into which a compound may be broken down without changing it into another substance?
molecules
What term refers to same throughout solution and only has one phase?
homogeneous solution
How many significant figures the following number has: 0.0006004030
7
Which are the three steps of the scientific method?
observing/ hypothesizing/ experimenting
Which subatomic particle is not found in the nucleus?
neutron
Express the following number in expanded form: 5.2 x 103
5,200
How do you call the central part of the atom? Which subatomic particles are inside?
nucleus/ protons and neutrons
Which are the four indicators that a chemical change occurred?
precipitation, gas, change in color, absorption of heat
Express 0.00000067 into scientific notation.
6.7 x 10-7
Which state of matter has definite shape and definite volume? Which state of matter has the most kinetic energy?
solid / gas
What term is related to change in the appearance but not in the composition of the substance?
physical change
Which is the symbol for the following elements:
helium/ sodium/ mercury/ magnesium
He/ Na/ Hg/ Mg
Classify the following as physical or chemical:
leaves changing color in autumn
lighting a candle
melting ice
chemical
chemical
physical
Convert 0.07 grams to kilograms
0.00007 kilograms
Convert 5.2 dm into m
0.52 m
What is the name of the following symbols: Ag/ Cl/ F
silver/ chlorine/ fluorine