Substances that are made up of only one type of atom OR of one type of compound (they are the same substance throughout).
Required
1 point
1
Question 2
2.
The particles in this substance tend to group together with like particles (the same type of atom/compounds); making a substance that is NOT uniform in composition. This means that it is easy to see/distinguish that the substance is made up of multiple parts.
Required
1 point
1
Question 3
3.
Made of 2 or more DIFFERENT types of atoms that ARE chemically bonded/combined in a fixed ratio and cannot be separated by physical means.
Required
1 point
1
Question 4
4.
A substance entirely made up of only onetype of atom
Required
1 point
1
Question 5
5.
The parts of this type of substance are equally distributed (mixed up and spread out evenly) throughout, making a substance that appears to be completely uniform in composition (uniform = the same/one).
Required
1 point
1
Question 6
6.
Two or more atoms (of the same OR different type) that are chemically bonded/combined.
Required
1 point
1
Question 7
7.
When two or more (different) pure substances are physically (not chemically) combined and exist in the same space, it is called a ________.
Required
1 point
1
Question 8
8.
The building blocks of matter. They are the smallest unit of an element that maintains the chemical properties of that element.
Required
1 point
1
Question 9
9.
These types of substances are made up of more than one type of substance that CAN be separated or broken down by physical means (without breaking a chemical bond).
Required
1 point
1
Question 10
10.
All pure substances can be broken down into simpler substances by physical means
Required
1 point
1
Question 11
11.
All compounds are molecules but not all molecules are compounds.
0.5 points
0.5
Question 12
12.
What does the "3" in this chemical formula tell us? 3C12H22O11
1 point
1
Question 13
13.
Liquid Nitrogen
1 point
1
Question 14
14.
Ink
1 point
1
Question 15
15.
A Newspaper
1 point
1
Question 16
16.
Baking Soda (NaHCO3) is a example of a
1 point
1
Question 17
17.
What is the total number of atoms in this molecule of sucrose 3 C12H22O11 ?
TYPE ONLY THE NUMBER (NO WORDS) BELOW
1 point
1
Question 18
18.
Select "Edit Background". Then put a blue box around any/all of the coefficients and a pink box around any/all of the subscripts.
#18 - #21 INSTRUCTIONS
For each question below:
1. First, categorize each substance below as a pure substance or a mixture.
2. Then, further classify it as an element, compound, homogenous, or heterogenous mixture.
*You should have two options chosen for each substance listed (just like the table we completed in class)*
#22 - #25 The last three questions are based on the chemical formula for sucrose (a type of sugar)
3C12H22O11
Required
1.5 points
1.5
Question 19
19.
Select every letter representing a box on the left that is an example of an element
Required
1.5 points
1.5
Question 20
20.
Select every letter representing a box on the left that is an example of a compound
Required
1.5 points
1.5
Question 21
21.
Select every letter representing a box on the left that is an example of a mixture
1 point
1
Question 22
22.
In a chemical formula, such as 3C(H2O)4 , atoms inside the parentheses represent pre-existing molecule(s) of H2O that bonded with carbon.
1 point
1
Question 23
23.
In the chemical formula 3C(H2O)4 , the coefficient is 4
1 point
1
Question 24
24.
This is an example of a homogeneous mixture
1 point
1
Question 25
25.
What does the "3" tell us in this chemical formula?
1 point
1
Question 26
26.
Cake Batter (mixed up) is an example of a
1 point
1
Question 27
27.
Cake Batter is an example of a
1 point
1
Question 28
28.
1 point
1
Question 29
29.
1 point
1
Question 30
30.
Which image below is an example of an element
1 point
1
Question 31
31.
The picture for #15 is an example of _____
1 point
1
Question 32
32.
The picture for #16 is an example of _____
1 point
1
Question 33
33.
The picture for #16 is an example of _____
1 point
1
Question 34
34.
The picture for #16 is an example of _____
1 point
1
Question 35
35.
The picture for #16 is an example of _____
1 point
1
Question 36
36.
This picture is an example of a ______
1 point
1
Question 37
37.
14.
15.
16.
Determine if the following substances are an example of an element, a compound, or a mixture
1 point
1
Question 38
38.
3C(H2O)4
In the chemical formula above, the coefficient is 4