1. Students in another science class had a sealed plastic bag full
to decide whether the air in the bag had mass. Here are the answers that four,
students wrote:
a. Air does not have mass because the bag does not feel heavy.
b. Air does not have mass because the air keeps moving around.
c. Since I cannot actually measure it, air cannot have mass,
d. Air has mass, but it is probably very, very small.
Which of these answers do you agree with? Explain your ideas. If you do not agree
with any of the answers, what answer would you give instead?
Answers: 1
Chemistry, 21.06.2019 17:30, hannahkelly3618
How many moles are equivalent to 55.5g of nano3
Answers: 1
Chemistry, 22.06.2019 15:00, emmalie52
Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .
Answers: 1
Chemistry, 23.06.2019 02:00, raulflores01
Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium
Answers: 1
1. Students in another science class had a sealed plastic bag full
to decide whether the air in the...
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