Plzz try to answerr as much as u cann from this worksheet. whoever has the most/best answers gets brainliest

1) 2c2h6 + 7o2
2) 4co2 + 6h2o
3)carbon, oxygen, hydrogen
4) oxygen gas, water, carbon dioxide, ethane
5)12 hydrogens and 6 oxygens
6)tells you there are 6 water molecules
7)i think no but not sure
table: 1st blank 0.5 g/cm^3 2nd blank 5 g/cm^3 3rd blank 17/4 g/cm^3 or 4.25 g/cm^3
8) i think it’s physical
9) chemical but not sure
10)definitely chemical
11) not sure
12)element
13) compound
14) not sure but possible a mixture
15) idk
16) exothermic/exergonic (if this reaction was spontaneous then its exergonic)

If it releases 5 tons a day and there are 7 days a take that answer and multiply by 5 percent (0.05) to find the amount released in one week. leave a comment if you need more .

You use the atomic number to find out how many protons and neutrons there are in the atom. you use the atomic mass to find out how many protons and electrons there are in the atom.