Atoms
How many atoms are found in the compound water? (H2O)
3
True/False
A compound can sometimes only have one element.
False
Using your periodic table, how many protons does He have?
2
Which element is required for life like we know it to exist?
oxygen
What type of graph shows comparisons? An example comparing colors.
bar graph
How many atoms are found in three molecules of CO2?
6
How many elements are in this compound? NaCl
2
Using the periodic table, how many electrons does Sodium have?
11
What is the most common element found in the Earth's atmosphere?
nitrogen
What type of graph shows a trend over time? For example, a tree growing for 10 years, measuring the height once a year.
line graph
How many atoms are found in the reactant side of the following equation?
2H2O --> 2H2 + O2
6
How many atoms are in this compound? 2NaCl
4
What identifies an element?
Number of protons
What are the 4 most common elements in the ocean?
sodium
chloride
hydrogen
oxygen
This type of graph shows percentages. For example, 75% of students are staying in Richmond over winter break, while 25% are going away.
Pie/circle grpah
How many atoms are there on the product side for the following equation?
C6H12O6 -> C6H12 + O6
24
How many different elements are on the product side of this formula with compounds? 2NaClH2O -> HNaCl + HONaCl
4
How many neutrons does Fluroine have?
10
What are the two most abundant gases in our atmosphere?
nitrogen and oxygen
The elves were busy making cookies for wintertime. They were trying to see if the number of eggs made the cookies higher. What is the IV?
number of eggs
How many atoms are found in the following formula on the reactant side? H2O4 + NaCl -> H2O + 2O + NaCl
8
How many atoms are on the reactant side of this formula with compounds? 2NaClH2O -> HNaCl + HONaCl
10
How many electrons go around the first three orbital rings?
1st ring - 2
2nd ring - 8
3rd ring - 8
How many different elements make up our universe? (At least how many are we aware of.)
118 elements
The elves were busy making cookies for wintertime. They were trying to see if the number of eggs made the cookies higher. What is the DV?
height of the cookies