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2/14: Physical and Chemical Changes Lab

Last updated over 2 years ago

45 questions

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Question 1

1.

As4O10

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Question 2

2.

V2O3

Question 3

3.

ammoniun phosphate

Question 4

4.

sulfur trioxide

Question 5

5.

What happened when calcium chloride and baking soda were combined in the presence of an indicator?

The solution turned black then purple

The solution turned yellow, blue, or red

There was no color change

The solution turned purple

Question 6

6.

chemical or physical change?

chemical

physical

Question 7

7.

Evidence of a chemical or physical change?

a chemical reaction formed new products

matter changed form, but not identity

Question 8

8.

What happened when ammonium chloride combined with water?

The temperature decreased

The temperature increased

The solution turned red

The solution turned blue

Question 9

9.

chemical or physical change?

chemical

physical

Question 10

10.

Evidence of a chemical or physical change

a chemical reaction forms new products

matter changes form but not identity

Question 11

11.

What happened when you combusted magnesium

a bright light was formed

the fire turned red

the fire turned blue

nothing happened

Question 12

12.

chemical or physical change?

chemical

physical

Question 13

13.

evidence of a chemical or physical change

matter changed form, but not identity

a chemical reaction forms new products

Question 14

14.

chemical or physical change?

chemical

physical

Question 15

15.

evidence of a chemical or physical change?

a chemical reaction formed new products

matter changed form, but not identity

Question 16

16.

What did you observe when you combusted paper?

it looked like my English essay

it got lit fam

Question 17

17.

chemical or physical change?

chemical

physical

Question 18

18.

evidence of a chemical or physical change?

a chemical reaction formed new products

matter changed form, but not chemical identity

Question 19

19.

chemical or physical change?

chemical

physical

Question 20

20.

evidence of a chemical or physical change

chemical reaction produced new products

matter changed form, but not chemical identity

Question 21

21.

What did you observe when you combined lead nitrate and potassium iodide?

a yellow precipitate formed

the color changed to red

the color changed to blue

the temperature increased

the temperature decreased

Question 22

22.

chemical or physical change?

chemical 

physical

Question 23

23.

evidence of a chemical or physical change

a chemical reaction created new products

matter changed form, but not chemical identity

Question 24

24.

chemical or physical change?

chemical

physical

Question 25

25.

evidence of a chemical or physical change

a chemical reaction produced new products

matter changed form, but not chemical identity

Question 26

26.

calcium sulfide

Question 27

27.

dinitrogen pentoxide

Question 28

28.

ammonia

Question 29

29.

NaBr

Question 30

30.

NO2

Question 31

31.

sulfuric acid

Question 32

32.

aluminum sulfate

Question 33

33.

FeSO4

Question 34

34.

P2Br4

Question 35

35.

zinc(II)nitrate

Question 36

36.

methane

Question 37

37.

AsCl3

Question 38

38.

NO

Question 39

39.

trisulfur monochloride

Question 40

40.

KC2H3O2

Question 41

41.

NF3

Question 42

42.

barium acetate

Question 43

43.

nickel(III)sulfide

Question 44

44.

HC2H3O2 or HCH3COO

Question 45

45.

H2CO3