Answer:
The chemical feature of each group is: native elements – only one element; silicates – silica tetrahedron; phosphates – phosphate tetrahedron; carbonates – one carbon atom with three oxygen atoms; halides – a halogen bonded with a metallic atom; oxides – a metal combined with oxygen; sulfates – sulfur and oxygen
The answer is false, i took the quiz
The answer should be 4. All of the above.
Answer: a variable is something to be changed or tested
Explanation:
The variable is the thing in an experiment that is changed