What kind of reaction is this? 1. Synthesis

2. Decomposition

3. Single Replacement

4. Combustion

5. Double replacement

6. Acid-Base

Using the periodic table, complete the table to describe each atom. type in your answers. a ? b? c? d? e? f?

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.