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RoseWind [281]
4 years ago
5

Bones function as levers for the muscles to provide movement of the body. How do muscles attached to the bones move the body?

Chemistry
2 answers:
olganol [36]4 years ago
6 0

Answer:

pull movement

Explanation:

Masja [62]4 years ago
4 0
The muscles will contract and work together to contract in different ways


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A tank containing methanol has walls 2.50 cm thick made of glass of refractive index 1.550. Light from the outside air strikes t
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use snells law for glass n=sini/sinr

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A sample of sodium reacts completely with 0.213 kgkg of chlorine, forming 351 gg of sodium chloride. What mass of sodium reacted
lapo4ka [179]

Answer:

The mass of sodium reacted is 138 grams

Explanation:

Firstly, the chemical reaction should be represented with a balance chemical equation. The chemical equation can be written as follows.

Na = sodium

Cl2 = chlorine gas

Na + Cl2 → NaCl

The balanced equation is

2Na(s) + Cl2(g) → 2NaCl(aq)

Atomic mass of sodium = 23 grams per mol

Atomic mass of chlorine = 35.5 grams per mol

From the chemical equation the molar mass are as follows

Sodium = 2 × 23 = 46 grams

Chlorine = 35.5 × 2 = 71 grams

Sodium chloride =  2 × 23 + 2 × 35.5 = 117 grams

if 46 grams sodium reacted to produce 117 grams of sodium chloride

? grams of sodium react to produce 351 grams sodium chloride

grams of sodium reacted = (351 × 46)/117

grams of sodium reacted = 16146/117

grams of sodium reacted = 138  grams

6 0
3 years ago
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The freezing temperature of water is zero on both the "K" and "C" scales. True False
Vera_Pavlovna [14]
False, 0 degrees on the K scale is absolute zero.
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Pliss help
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Answer: I believe it is artificial selection (not certain though)

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