So you need to put numbers before each compound to make sure there are the exact same number of elements on each side. If you put a 4 before NH4 there are 4 Nitrogen and now 16 hydrogen. I just played around with numbers and guessed until I got them even.
It would be D Because the earth orbits the sun
Answer: I think so.. (sorry if i am wrong)
Explanation: Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity. A physical property is a characteristic of matter that is not associated with a change in its chemical composition.
2. When a fire is burning, chemical energy is turned into visible energy in the form of light and thermal energy in the form of heat.
3. A burning fire is exothermic because a lot of heat is given off as the wood is converted into carbon dioxide and water.
4. Energy is never created but simple recycled and changed into other forms.
The answer is going to be C hope this helps please make me a Brainly
