Identify the combination reaction. 2H 2 +022H 20
O Cl2 + 2KBT
2KCI + Br 2
O Al 2S 3 — 2A1 + 35
O C4H 12 + 70 26H 20 + 4CO 2

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

plz give brainliest

the answer for sodium is 0.186

the answer for rubidium is 0.251

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest