Mathematics, 14.02.2020 02:27 imelda249
Avogadro's number 6.02 X 10^23 is used in chemistry to measure something like electrons, atoms, elements etc.
Question 1 options:
True
False
If you have 2 moles of marbles how many marbles do you have?
Question 2 options:
3.01 X 10^24
12.04 x 10^23
6.022 x 10^23
2.0 x 10^23
How many hydrogen molecules are in 1.2 moles of hydrogen?
Question 4 options:
7.2 x 10^23
0.19 x 10^23
1.9 x 10^24
4.8 x 10^23
How many water molecules are in 2.1 moles of water?
Question 5 options:
2.86 x 10^23
3.4 x 10^23
0.34 x 10^23
1.264 x 10^23
Answers: 3
Mathematics, 21.06.2019 19:00
[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?
Answers: 1
Mathematics, 21.06.2019 19:00
What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)
Answers: 1
Mathematics, 21.06.2019 19:50
Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27
Answers: 1
Mathematics, 22.06.2019 00:00
Asequence has a common ratio of and f(5) = 81. which explicit formula represents the sequence? f(x) = 24 f(x) = 16 f(x) = 24 f(x) = 16
Answers: 1
Avogadro's number 6.02 X 10^23 is used in chemistry to measure something like electrons, atoms, elem...
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