Conversions
Convert 27 meters to centimeters
2700 cm
A certain object is found to have mass of 54g and volume of 48 cm3 of water. What is the density?
1.1 g/cm3
What are the two major categories of matter?
Mixtures and substances
What three things are found in an atom??
Protons, neutrons and electrons
How many valence electrons does Aluminum have?
3
Convert 289 km to meters
289000 m
The density of a certain liquid is 0.67 g/mL. What is the volume of 12 grams of the substance?
18 mL
What is the Tyndall Effect?
The effect used to determine whether something is a colloid
List the maximum number of electrons each energy level can have.
2, 8, 18, 32
Define an isotope.
An isotope is a species with the same number of protons, but a different number of neutrons
Convert 36 kg to mg
3600000 mg
Gold, copper and bronze are layered in a container. Their densities are as follows: 19.3 g/ml, 8.86 g/ml, 9.87 g/ml. List the order in which they will appear in the cup from top to bottom.
Copper, bronze, then gold
What does thermal expansion state? What is the exception?
Increase in temperature causes substances to expand. Water
What is the name of the group that Magnesium belongs to?
Alkaline earth metals
A Bromine (Br) isotope has a mass number of 74, how many neutrons does it have?
39
Convert 645 cm to km
.00645 km
A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride. The weight of the flask and carbon tetrachloride is found to be 703.55 g. From this information, calculate the density of carbon tetrachloride.
1.59 g/mL
What principle explains the relationship between velocity and pressure?
Bernoulli's principle
A student knows the mass number of an isotope, how will they figure out the number of neutrons present?
Subtract the atomic number from the mass number
102Sr2+ How many protons, neutrons and electrons are present?
38, 64, 36
Convert 367 mL to kL
.000000367 kL
A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The block weighs 1587 g. From this information, calculate the density of lead.
11.3 g/cm3
List the 3 parts to the kinetic theory.
1. All matter is composed of particles
2. Particles are in constant, random motion
3. Particles collide with each other and wall