Salt because the products are H20 and NaCl. H2O evaporated leaving salt or NaCl as the remainder.
Solar energy is a non-pollutant, which means it doesn't pollute the environment. so therefore A is the correct answer.
Triple helix is the tertiary structure out of those choices
ok im not full sure man but i would say multiple voltaic cells that have spontaneous half reactions
im sorry hope it helps
Answer: exothermic
EXPLANATION: any process in which heat energy is released is called an exothermic process. For example burning of wood produces heat, so combustion of wood is an exothermic process.
When chemicals were not mixed they were at room temperature and when we mix them exothermic reaction took place and heat was released which raised the temperature of mixture.
