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WorksheetsChemCom - Topic #2 and 3
Total questions: 12
Worksheet time: 7mins
What is the dependent variable?
power generated
large white fan
distance to the fan
cell phone
Using the data and set-up below, how long would it take to charge a cell phone at 10 cm?
583 hrs
420 hrs
340 hrs
124 hrs
The diagram would be classified as a __ reaction that takes place at ___.
fusion - a reactor
fission - the sun
fusion - the sun
fission - a reactor
The reaction below would be classified as a ___ taking place in ___.
fusion - a reactor
fission - the sun
fusion - the sun
fission - a reactor
magnesium-24 is different from an atom of magnesium-25 because of the number __.
protons
electrons
neutrons
rings
How many atoms of oxygen are present in the following reaction?
3
2
6
1
When copper and zinc are used in the battery system, which element gains electrons?
copper
zinc
both
neither
What is the formula for the particles in Box C.
2B4
4BW
2B2 + 2W2
Box A contains
elements
compounds
both
Which box or boxes represent PRODUCTS?
i only
ii only
i and iii
ii and iv
Which chemical equation matches the pictures shown for Reaction #2?
2 Mg + 2 F2 --> 2 MgF2
2 N2 + 2 O2 --> 4 NO
Would a chemical reaction take place if Copper was placed in a solution of Calcium Chloride?
Yes, a reaction would occur.
No, a reaction would not occur.
It is impossible to determine if a reaction would occur.
