Symbolic Representations
Interactive Video
•
Science
•
12th Grade
•
Hard
Wayground Resource Sheets
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following describes a chemical change?
Water boiling into steam.
Wax melting from a candle.
Hydrogen gas reacting with oxygen to form water.
Sugar dissolving in water.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the symbolic representation for liquid water absorbing energy to become gaseous water?
H2O(g) + E → H2O(l)
H2O(l) → H2O(g) + E
H2O(l) + E → H2O(g)
2H2(g) + O2(g) → 2H2O(l) + E
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was Antoine Lavoisier's significant contribution to the field of chemistry?
Developing the first periodic table of elements.
Shifting chemistry from a qualitative to a quantitative science.
Discovering the structure of the atom.
Formulating the theory of relativity.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If 1.77 x 10^4 kg of hydrogen completely reacts with 1.42 x 10^5 kg of oxygen, what is the total mass of water formed?
1.24 x 10^5 kg
1.60 x 10^5 kg
1.77 x 10^4 kg
1.42 x 10^5 kg
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