2017 Mod1

Question 1

Write out the definitions for the following terms:

A. Atom

Answer 1

The smallest chemical unit of matter

Question 2

B. Molecule

Answer 2

Two or more atoms linked together to make a substance with unique properties

Question 3

C. Concentration

Answer 3

The quantity of a substance within a certain volume

Question 4

50 g of carbon disulfide can be broken down into 42.1 g of sulfur and 7.9 g of carbon. Is carbon disulfide made up of atoms or molecules?

Answer 4

Molecules

Question 5

If you put I are near a magnet, the iron will be attracted to the magnet. Rust is made up of molecules that contain iron atoms and oxygen atoms. Trust is not attracted to a magnet. If rest contains iron atoms, and iron is attracted to a magnet, why isn’t rust attracted to A magnet?

Answer 5

Because it was oxidized into a substance with different properties

Question 6

Hey statues made out of copper and displayed outside. After many years, what color walls statue be?

Answer 6

Blue – green

Question 7

Have scientists actually seen atoms

Answer 7

No

Question 8

Give the loom Mericle meaning for The prefixes “centi,” “milli,” and “kilo. “

Answer 8

Centi equals 0.01, milli equals 0.001, kg equals 1000

Question 9

If you wanted to measure an objects mass, what metric unit would you use? What English unit would you use?

Answer 9

Metric unit equals gram English unit equal slug

Question 10

If you want to measure an objects volume, what metric unit would you use? What English unit would you use?

Answer 10

Metric unit equals liter and English unit equals gallons

Question 11

If you want to measure in object links, what metric unit what do you yes? English unit would you use?

Answer 11

Metric unit equals meter English unit equals foot inch mile

Question 12

How many centimeters are in 1.3 m

Answer 12

103 cm

Question 13

If a person has a mass of 75 kg, what is his or her mass in grams?

Answer 13

1 kg equals 1000 g so 7500 g

Question 14

How many liters of milk are in 0.500 gallons of milk? Remember 1 gallon equals 3.78 L

Answer 14

The answer is using the Calculator 1.890 L

Question 15

In meter stick is 100 cm long how long is it in inches remember 1 inch equals 2.54 cm

Answer 15

By rounding we get the answer 39 something 39.4

Question 16

O-Zone is a poisonous gas that can build up in ear in densities. Thus, there are many in varmint environment out in Tates to lower the amount of O-Zone in the air we breathe. One way you can make O-Zone however is by making bread. And I spell you associate with bacon bread is actually due in part to O-Zone. If O-Zone is poisonous, why is Beacon bread not considered a dangerous activity?

Answer 16

Because the O-Zone gas is not in concentrated levels to be poisonous