4.) an element cannot be decomposed by a chemical change, it is a pure substance and no other materials compose it.
Answer: 7
Explanation:
Before a number but after a decimal. The zeros at the end would usually mean that it doesn't count but since the numbers are before the zeros and after a decimal it's 7 sig figs
I need help on this one too I think it might be (b)
If a mineral has a metallic shine and scratches, which of its properties are being measured?
Choose the two correct answers.
magnetism
hardness
cleavage
luster
Answer: hardness and luster
Answer:
A.) the transfer of energy through a solid, such as the Earth’s crust
I hope this helps! ^-^
