Answer:
Steel and cast iron
Explanation:
They are all metal but assuming that you are finding the best material for your pan i suggest going for steel or cast iron
I believe it would be 2, if CaCO3 is your molecule you will have two because of the number in front :)
Answer: When converting from Scientific Notation to a standard or normal notation, use the value of the exponent to determine the number of places to move the decimal point. Move the decimal place to the right if the exponent is positive and move the decimal place to the left if the exponent is negative.
Explanation: I got this from a website but I still hope it helps!
The correct answer would be A.
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