1. the following reaction does not proceed to form a product: h2o + > no reaction. why is that?
a) gold has a higher activity than hydrogen and cannot replace it.
b) gold has a lower activity than hydrogen and cannot replace it.
c) the reaction cannot occur because water is a reactant.
d) the reaction proceeds too slowly to create products.
2. which of the following is the balanced form of the equation c2h6 + o2 --> co2 + h2o?
answer choices are attached a, b,c, d top to bottom
3. the equation 2nano3 + cacl2 > 2nacl + ca(no3)2 is balanced. how many atoms of sodium (na) are there on either side of the equation?
a) one
b) two
c) four
d) six
4. all single-displacement reactions can be classified as another type of reaction as well. what type of reaction is that?
a) combustion
b) redox
c) synthesis
d) decomposition
5. if ions change places and a gas is formed, then what type of reaction is indicated?
a) double-displacement
b) synthesis
c) decomposition
d) single-displacement