Which reaction is balanced correctly? O 2C + O2 – CO 2

O C 6H 120 6 + 60 2 - 3CO 2 + 6H 20

O C3H 8 + 50 2 – 3CO 2 + 2H 20

CH 4 + 20 2 - CO 2 + 2H 20

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Detrimental the length of the object shown 1. 97.8mm 2. 97.80 mm 3. 97mm 4. 98mm

In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.