Answer: 3 Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same
Explanation:
Physical change mainly physical properties of a substance while the chemical changes remain unchanged. Once there is a change to the chemistry of the substance, this would be classified as a chemical change.
Answer:
Kilogram
Explanation:
The metric system is the Kilogram, meter, second system. These are fundamental quantities of the metric system.
Kilogram, the unit of mass always carries the prefix 'kilo' in its SI unit. Kilogram is the SI unit of mass. Hence, the fundamental unit on the metric system that always has a prefix in front of it is kilogram.
Answer:
the second one down is your answer
Explanation:
B. CO
A compound is a combination of 2 or more elements and since both of the letters are capitalized you know that they’re 2 separate elements, therefore a compound
Hi Alex,
I think your answer is (<span>a seafloor that was geologically active with earthquakes, volcanoes, and mountain chains) Good luck!
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