What’s a substance made up of two or more elements

Compounds

Explanation:

Substance made up of two or more elements is known as Compounds

For Example :-

1.) Water

2H2 + O2 → 2H2O

2.)

Carbon Dioxide

C + O2 → CO2

-TheUnknownScientist

odds are decent that your handwriting right now looks a little bit different than it did five years ago, and will look different again in five more. when i look back through my notebooks from middle school to now, i see a long, slow progression from meticulous and teeny letters to bigger, sloppier ones, plus a few side detours: sometime in high school, for example, i decided those loopy cursive lowercase f’s were just the coolest, adopting them as the lone rep for cursive in my otherwise all-print handwriting.

explanation:

beta decay is the answer