Which statement best describes the energy of activation?

a. it is affected by a catalyst.
b. it is lower if the reaction temperature decreases
c. it is higher if the reaction temperature increases
d. it is more quickly overcome when the temperature increases

The minerals found in bones are deposited by living cells called

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)