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Q 1/31
Score 0
The follow image could represent....
300
a compound
a mixture of elements
a mixture of compounds
an element
Q 2/31
Score 0
An element contains only one type of ________________________.
300
Mixture
Compound
Atom
31 questions
Q.
The follow image could represent....
1
300 sec
Q.
An element contains only one type of ________________________.
2
300 sec
Q.
We can use this word to describe anything with a chemical formula
3
300 sec
Q.
We can use this word to describe any material we use in chemistry
4
300 sec
Q.
This picture represents.....
5
300 sec
Q.
In this picture, each molecule contains....
6
300 sec
Q.
In this sentence, we could replace the word "substance" with....
7
300 sec
Q.
What is the best word to fill in the blank?
8
300 sec
Q.
In this picture, we would call each group of 2 circles a.....
9
300 sec
Q.
In this picture, the black lines between the circles represent....
10
300 sec
Q.
In this picture, each individual circle represents....
11
300 sec
Q.
What is the best word to fill in the blank?
12
300 sec
Q.
The following image could represent....
13
300 sec
Q.
A mixture where the substance does NOT appear even throughout is...
14
300 sec
Q.
What type of matter is baking soda: NaHCO3 ?
15
300 sec
Q.
What type of matter is pure water (H2O) ?
16
300 sec
Q.
In distillation, substances can be separated because....
17
300 sec
Q.
In filtration, we separate substances based on the fact that.....
18
300 sec
Q.
In a distillation apparatus, what happens in the condenser?
19
300 sec
Q.
When methane (CH4) is burned, it combines with oxygen (O2) from the air to create carbon dioxide (CO2) and water (H2O). This process is....
20
300 sec
Q.
True or false: In a chemical reaction, the chemical formula of the starting substance changes.
21
300 sec
Q.
Two-year old Astrid uses crayon and paper to make a picture. This process is....
22
300 sec
Q.
After making her picture, Astrid leaves her crayons outside and they start to melt in the hot sun. The process of crayons melting is....
23
300 sec
Q.
Ms. Yan finds the melted crayons and decides to add the melted crayon wax to a candle that she is making. When Ms. Yan burns the candle, what type of process is happening? (Note: Two-year-old Astrid is not burning the candle. Only a responsible adult should do that).
24
300 sec
Q.
When we put sand in water, we make a heterogeneous mixture. When we dissolve salt in water, we make a ....
25
300 sec
Q.
Copper has the symbol Cu. What type of matter is copper?
26
300 sec
Q.
How else could copper be classified?
27
300 sec
Q.
Gold (Au) and glucose (C6H12O6) are BOTH examples of....
28
300 sec
Q.
Distillation and evaporation are similar because....
29
300 sec
Q.
If we distill salt water, we are able to separate and collect....
30
300 sec
Q.
If we leave a beaker of saltwater overnight to evaporate, we end up with.....
