CI Investigation 1 Question Preview (ID: 45569)


Review Of CI Investigation 1. TEACHERS: click here for quick copy question ID numbers.

Chemistry is the study of
a) weather conditions.
b) properties and changes of matter.
c) constellations.
d) plants.

Evidence of a chemical change includes _____.
a) temperature change
b) new substances formed
c) gas formed
d) all of the above

During a _____ change, two or more substances interact to form new substances with different properties from the original substances.
a) physical
b) chemical
c) density
d) solubility

Select the chemical formula from the list below.
a) citric acid
b) 3 + 4
c) sodium five
d) C6H8O7

Select the chemical name.
a) vinegar
b) C6H8O6
c) ascorbic acid
d) 7 + 11

Which of the following would result in a chemical reaction?
a) bending a straw
b) braiding hair
c) boiling water
d) burning wood

Which of the following represents a chemical reaction?
a) In baking biscuits, the baking powder reacts to release carbon dioxide bubbles. The CO2 bubbles cause the dough to rise.
b) Blow drying wet hair.
c) Slicing a loaf of bread into slices.
d) Food coloring is dropped into water and it turns green.

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) 10 g
b) 15 g
c) 25 g
d) approximately 25 g

Which of the following is true about chemical reactions?
a) Chemical reactions do not absorb or release energy.
b) Some chemical reactions release energy and others absorb energy
c) All chemical reactions release energy.
d) All chemical reactions absorb energy.

Every substance has characteristic physical and _____ properties that can be used to identify it.
a) colorful
b) density
c) chemical
d) soluble

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