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katovenus [111]
3 years ago
11

17. Examples of a lever machine include

Chemistry
1 answer:
k0ka [10]3 years ago
3 0

hope it's help you ok have a good day

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When bonded with four hydrogen atoms, carbon has which shape?
jolli1 [7]
When carbon bonds with 4 hydrogen atoms which is methane having sp3 structure so it is tetrahedral. electricity is conducted by electrons so graphite conducts by free and delocalised sea of electrons.
3 0
3 years ago
HELP ME PLEASE. no links.
tatiyna

Answer:

Experimental group

Explanation:

i hopes this helps let me know if im wrong:)

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An experiment is designed to determine the hunting preferences of grey wolves in Yellowstone. What kind of experiment is this?
Reil [10]

Answer:

Fuel experiment

Explanation:

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if a dinosaur once lived in mexico, and i now live in arkansas, can i be drinking the same water the dinosaur did?
MrRissso [65]
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3 years ago
Read 2 more answers
Liquid nitrogen has a density of 0.808 g/mL and boils at 77 K. Researchers often purchase liquid nitrogen in insulated 185 L tan
Serga [27]

Answer:

37.14 %

Explanation:

Using the equation, mass, M = D1 * V1

= D2 * V2

Where,

D1 = density of the liquid Nitrogen

D2 = density of gaseous Nitrogen

V1 = volume of the liquid Nitrogen

V2 = volume of the gaseous Nitrogen

Calculating V2,

0.808 * 185 = 1.15 * V2

Volume of Nitrogen after expansion = 129.98 m3.

Volume = L * b * h

= 10 * 10 * 3.5

Volume of the room = 350 m3.

Fraction of air = volume of Nitrogen after expansion/volume of the room * 100

= 129.98/350 *100

= 37.14 %

5 0
3 years ago
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