Which statement describes the law of conservation of energy?

all systems will exchange matter and energy with their surroundings.
all systems can exchange energy, but not matter, with their surroundings.
energy cannot be created nor destroyed, but it changes from one form to another.
energy is destroyed in most chemical reactions when new products are formed.

Answer is: Energy cannot be created nor destroyed, but it changes from one form to another.

The law of conservation of energy states that the total energy of an isolated system remains constant.

For example, coal power plants use coal to heat water into steam, that steam than move a steam turbine, which generate electricity. In this example energy is transformed from thermal to mechanical to electrical energy.

it’s D energy is transferred when atoms are rearranged

Explanation:

That’s the only one that scientifically represents law of conversation of energy

it would be a gas formation

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).