select one:
Chemistry, 23.11.2019 00:31 imgoingtowriteabook
Butter is melted in a pan. which of the following is true about the change?
select one:
a. it is a physical change that absorbs energy.
b. it is a physical change that releases energy.
c. it is a chemical change for which there is no change in energy.
d. it is a chemical change that absorbs energy.
Answers: 2
Chemistry, 22.06.2019 08:30
What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots
Answers: 3
Chemistry, 22.06.2019 15:20
An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.
Answers: 1
Chemistry, 22.06.2019 18:50
Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space
Answers: 3
Butter is melted in a pan. which of the following is true about the change?
select one:
select one:
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