Module I
The type of data you can graph.
Quantitative Data.
The substance that does the dissolving.
Solvent.
The number of protons in an atom.
Atomic Number.
What are the numbers that appear before a formula in a chemical equation that show how many atoms or molecules of each reactant or product are involved in the reaction called?
Coefficients.
A mole.
A tentative explanation for an observation.
Hypothesis.
The substance in a solution that gets dissolved.
Solute.
The sum of protons and neutrons in an atom.
The type of bond that occurs when atoms share an electron.
Covalent.
What is an exothermic reaction?
To convert 3.8cm to m, you should multiply by which conversion factor?
0.01 m / cm
Which of these is not an element:
water, hydrogen, aluminum, iron
A particle that has negative charge and found outside the nucleus?
Electron.
The type of chemical bond that occurs when one atom donates one or more electrons.
Ionic bond.
What is the name of the compound: CaCl2?
Calcium Chloride.
If a person has a mass of 75kg, what is their mass in g?
75,000g.
Which is not an example of a physical property:
melting point, reactivity, density, hardness.
Reactivity.
If an atom of germanium has a mass number of 70 and an atomic number of 32, how many neutrons are in the nucleus?
38.
What is the chemical formula for a molecule that has one Zinc atom and two Chlorine atoms?
ZnCl2
In what type of reaction does one reactant form two or more products: single replacement, double replacement, synthesis or decomposition?
Decomposition.
In the "SI" symbol "km", what does the m stand for?
Meter.
What are evaporation and condensation an example of?
Phase change.
What are the 3 primary subatomic particles which make up atoms and what are their charges?
Proton: positive, Neutron: neutral, Electron: negative
How many atoms are in ammonia (NH3)?
4.
What is a nearly blind mammal that can dig called and has a name that overlaps with chemistry?