Mid Summative 1 2 Answers
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Transcript of Mid Summative 1 2 Answers
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Which elements are in the following substances?
Substance Chemical Formula
Names of elements
Water H2O Hydrogen, Oxygen
Sucrose C12H22O11 Carbon, hydrogen,
oxygenOzone O3 Oxygen
Lead acetate Pb(C2H3O2)2 Lead, Carbon,
Hydrogen, Oxygen
Ammonium carbonate
(NH4)2CO3 Nitrogen, Hydrogen,
Carbon, Oxygen
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What is the difference between Ni and NI?
•Ni is the symbol for the element Nickel
•NI is the symbol for 2 elements, Nitrogen and Iodine
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What is a substance?
A form of matter that is different
from every other form of matter
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Which are substances?
•Ni•Co•Fe
•CO
•CaCO3
•MgSO4
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How are elements & matter related?
Elements are the building
blocks of matter
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Why was the mystery mixture a chemical
reaction?A chemical reaction is the combination of 2 or more
substances that results in a new substance. We combined the
mystery mixture with water and a gas (bubbles) formed which is a
new substance