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CI Investigation 1
Test Description: Review of CI Investigation 1
Instructions: Answer all questions to get your test result.
1) Chemistry is the study of
A
weather conditions.
B
constellations.
C
properties and changes of matter.
D
plants.
2) Evidence of a chemical change includes _____.
A
gas formed
B
temperature change
C
new substances formed
D
all of the above
3) During a _____ change, two or more substances interact to form new substances with different properties from the original substances.
A
solubility
B
density
C
chemical
D
physical
4) Select the chemical formula from the list below.
A
citric acid
B
sodium five
C
C6H8O7
D
3 + 4
5) Select the chemical name.
A
vinegar
B
C6H8O6
C
ascorbic acid
D
7 + 11
6) Which of the following would result in a chemical reaction?
A
boiling water
B
braiding hair
C
burning wood
D
bending a straw
7) Which of the following represents a chemical reaction?
A
Food coloring is dropped into water and it turns green.
B
Blow drying wet hair.
C
Slicing a loaf of bread into slices.
D
In baking biscuits, the baking powder reacts to release carbon dioxide bubbles. The CO2 bubbles cause the dough to rise.
8) A student mixes 10 g of Substance A and 15 g of Substance B in a closed container and a chemical reaction takes place. What would you expect the final mass to be?
A
15 g
B
10 g
C
25 g
D
approximately 25 g
9) Which of the following is true about chemical reactions?
A
Some chemical reactions release energy and others absorb energy
B
Chemical reactions do not absorb or release energy.
C
All chemical reactions absorb energy.
D
All chemical reactions release energy.
10) Every substance has characteristic physical and _____ properties that can be used to identify it.
A
colorful
B
density
C
soluble
D
chemical
*select an answer for all questions
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