Is hydrogen gas an element, compound, heterogenous micture or sollution?

Question

Element, Compound, Solution, or Heterogenous Mixture?

hydrogen gas

orange juice

clean air

carbon dioxide (CO2)

Answer 1

YES

Answer 2

It's a micture of orange juce and dirty socks.

Answer 3

1. Hydrogen gas is an element, since it's made of only one element (hydrogen).

2. OJ...can be a solution of a heterogeneous mixture. Depends on the concentration.

3. Clean air, even if it's clean or dirty, still is a homogeneous mixture (solution) of many elements.

4. Carbon dioxide is a compound.

Answer 4

hydrogen gas - element

orange juice - heterogeneous mixture (if it has any pulp)

clean air - solution (homogeneous mixture)

carbon dioxide - compound (two or more different elements combined chemically)

Answer 5

Hydrogen gas is a diatomic molecule. It is a compound.

Orange juice is a solution (unless the powdered solids aren't totally dissolved, then that makes it heterogeneous).

Clean air is a solution or a homogeneous mixture.

Carbon dioxide is a compound.

Answer 6

none of them (H+ is an element, H2 gas is a homonuclear diatomic molecule. see reference for clarification)

heterogeneous mixture and solution

heterogeneous mixture

compound

Answer 7

hydrogen gas is a compound (H2), but hydrogen by itself is an element..

orange juice is mixture. it compounds very many compounds in it.

clean air is also a mixture. although it is clean, it may contain some traces of other gases.

carbon dioxide is a compound. it is made up of the elemts carbon and oxygen.