The universe is estimated to be how old?
a. 2 million years
b. 4 million years
c. 4.6 billion years
d. 13 to 14 billion years

Figure 10-1 study figure 10-1. the strong nuclear force felt by a single proton in a large nucleus

What is the relation between concentration of reactants and the rate of chemical reaction?

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.