This is the number of significant figures in the number "100"
What is 2
100
This atom has an atomic mass of 4
What is Helium
100
This is the number of protons in Ca+2
What is 20
PROTONS NEVER CHANGE!!!
100
These types of bonds conduct electricity only when dissolved in water
What are ionic bonds
100
The conversion factor for changing a given number of moles into molecules
What is 1 mole/6.02 x 1023 molecules
200
In order to accurately analyze the results of an experiment, I must compare the experimental groups to this
What is the control group
200
A neutral atom has the same number of each of these
What are protons and electrons
200
This atomic mass of Nitrogen-16
What is 16 amu
200
The formula for dichromium pentasulfide
What is Cr2S5
200
How many atoms are in 1 mole of Francium atoms?
What is 6.02 x 1023 atoms
300
The answer to this question:
100-3.2
What is 97
(98.6 is the un-rounded answer. the number 100 has the least number of decimal places (0) so we round our answer to 0 decimal places)
300
The atomic mass of every atom is the sum of these
What are protons and neutrons
300
This is the charge of Cobalt (Co) minus 2 electrons
What is +2
300
The name of the compound Cr2O3
What is Chromium (III) Oxide
300
How many atoms are in 6 moles of H2O?
What is 1 x 10 26 atoms
400
The answer is dependent variable, the question is...
What is the thing that changes as a result of the independent variable
400
A neutral atom of this element contains 28 electrons
What is Nickel
400
The number of protons, neutrons and electrons (in that order) of Sulfur-35 (-4)
What are 16, 19, and 20
400
The bond type which holds the Hydrogens and Oxygen together in a molecule of H2O
What is what are covalent bonds or what are polar covalent bonds
400
How many Liters is 3.65 x 10 21 atoms of Oxygen gas?
What is 1.35 Liters
500
The answer to this question using significant figures:
100.540 x 3
What is 300
500
***DAILY DOUBLE***
This element has 47 electrons, 61 neutrons, and 47 protons.
1) Its atomic mass is...
2) Name that element!
What are 108 amu and Silver
500
****Daily Double****
The average atomic mass of element X if its isotopes are 10.0129 amu occurring 19.78% of the time in nature and
11.000 amu occurring 80.22% of the time in nature.
Name that element!!
What is 10.80 amu; Boron
Avg mass = (0.1978 * 10.0129) + (0.8022 * 11) = 10.80 amu