Chemistry, 10.03.2021 09:00 thawkins79
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All three types of rock form in which earth layer? .
A reversible change, where appearance is altered, but the composition stays the same is . An irreversible change that alters the chemical makeup of a substance is . Is the melting of ice into liquid water a physical or chemical change? What is involved in any change in matter?
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Alarge marble is dropped in a graduated cylinder with 35ml of water in it. the water level increases to 49ml. what is the volume of the marble
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In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst
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For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)
Answers: 2
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Identify the correct mole ratio for each substance. sodium chloride (nacl) na: cl = 1: ammonium nitrate (nhno) h: o = 4:
Answers: 1
Fill in the Blank
All three types of rock form in which earth layer? .
A reversible cha...
A reversible cha...
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