Unit 1
Convert 1 kg to grams
1000 g
Is the following substance an element or a compound? Cl2
Element
What element is K?
Potassium
What is the correct formula for the ionic compound formed between Ca and I?
CaI2
A poisonous mixture of smoke, fog, air and other chemicals is called…
Smog
Convert 10 degrees celsius to Fahrenheit
75.6 oF
Is the following a chemical or physical change: A pellet of sodium is sliced in two.
Physical change
Who said that, the universe was composed of small indivisible objects called “atomos”
Democritus
What family does Beryllium belong to?
Alkaline Earth Metals
What is anthropogenic air pollution?
Pollution from human activity
the variable that is measured for an experiment
dependent variable
Is the following mixture heterogeneous or homogeneous? Salad
Heterogeneous
Who discovered the electron?
J.J. Thomson
What is the unabbreviated electron configuration of Carbon
1s22s22p2
Which type of radiation from Earth is the long-wave radiation absorbed by greenhouse gases?
Infrared
Complete the following problem in scientific notation (6.23 x 106kL) + (5.34 x 106 kL)
11.57 x 106 kL
Is the following mixture heterogeneous or homogeneous? Sugar water, H2O + C12H22O11
Homogeneous
What happens when nuclei combine to produce a bigger nucleus
nuclear fusion
What is the formula for dinitrogen tetroxide?
N2O4
Where are most of the nitrogen oxides formed from?
Naturally produced
Convert 623 qts to milliliters. (1L=1.060 qts).
587,735 mL
Is the following a chemical or physical change: Hydrochloric acid reacts with potassium hydroxide to produce salt, water, and heat.
Chemical change
If you start with 60 atoms of Carbon and it goes through 3 half-lives how many atoms remain?
7.5 atoms
Substance A has london-dispersion forces. Substance B has london-dispersion forces and dipole-dipole forces. Substance C has only Hydrogen bonding. Which substance has the highest boiling point?
Substance C
What is the primary function of the clear glass of a greenhouse?
The glass allows short wavelengths of radiation to enter, but reduces the amount of long-wave radiation that escapes.