A solution has [H+] = 1.5 × 10−7 M. What is the [OH−] in this solution?

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2