Chemistry 104- Exam 100% Verified Solutions Revised 2023/2024

Chemistry 104- Exam 100% VERIFIED SOLUTIONS REVISED 2023/2024 In a ________________ reaction, two or more elements form one product. simple compounds combine to form one product. combustion In a ________________ reaction, one substance splits into two or more simpler substances decomposition In a ________________ reaction, one element takes the place of a different element in another reacting compound single replacement A+BC -- AC+B in a _____________ reaction, the positive ions in the reactant compounds switch places double replacement In a ______________ reaction, a carbon-containing compound burns in oxygen gas to form carbon dioxide (CO2) and water (H2O). energy is released as a product in the form of heat. CH4(g) + 2O2(g) CO2(g) + 2H2O(g) + energy C3H8(g) + 5O2(g) 3CO2(g) + 4H2O(g) + energy combustion In a _______________ reaction, a candle burns using oxygen in the air. combustion When you see a rusty nail, tarnish on a silver spoon, or corrosion on metal, you are observing ___________________________________reaction. oxidation-reduction When we turn the lights on in our automobiles, an ______________________________ reaction within the car battery provides the electricity. oxidation-reduction always involves a loss of electrons. may also be seen as an addition of oxygen. may also be seen as the loss of hydrogen atoms. oxidation always involves a gain of electrons. may also be seen as the loss of oxygen. may also be seen as the gain of hydrogen. reduction in the chemical formula of a compound indicate the number of atoms of each type of element in the compound. subscripts Avogadro's number 6.02 x 10^23 Small particles such as atoms, molecules, and ions are counted using the _________. mole conversion factor for avogadro's num