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sasho [114]
2 years ago
6

Which term describes the maintenance of a steady internal state in the body?

Chemistry
1 answer:
Sonja [21]2 years ago
5 0
B, homeostasis. “Homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems.”
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makkiz [27]
Given the molar mass of Nitrogen is 14.01g/mol you can use that to solve for the moles of nitrogen.
0.235g(1mol/14.01g) = .0168 moles.
6 0
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meriva

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We are dependent on plants and plants need CO2 from enviromen

Explanation:

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Which compound is an example of an amino acid?
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PLEASE HELP!!!
matrenka [14]

Answer:

d = 0.84 g/cm³

Explanation:

Given data:

Mass of wood = 2.85 g

Volume of water = 20.0 mL

Volume of water + wood = 23.4 mL

Density of wood = ?

Solution:

Volume of wood = (Volume of water + wood ) - Volume of water

Volume of wood = 23.4 mL - 20.0 mL

Volume of wood = 3.4 mL

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Density of wood:

d = m/v

d =  2.85 g / 3.4cm³

d = 0.84 g/cm³

7 0
2 years ago
H₂ (2)<br> → H.<br> H₂(8)<br> +<br> 2(g)<br> wer
Gre4nikov [31]

The given question is incomplete. The complete question is:

In the chemical reaction: , with 8 grams of and 16 grams of and the reaction goes to completion, what is the excess reactant and how much of that would remain?

A) 6 grams of  

B) 7 grams of  

C) 8 grams of

D) 12 grams of

E) 14 grams of

Answer: A) 6 grams of H_2

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} H_2=\frac{8g}{2g/mol}=4moles

\text{Moles of} O_2=\frac{16g}{32g/mol}=0.5moles

2H_2(g)+O_2(g)\rightarrow 2H_2O(g)  

According to stoichiometry :

1 moles of O_2 require 2 moles of H_2

Thus 0.5 moles of O_2 will require=\frac{2}{1}\times 0.5=1.0moles  of H_2

Thus O_2 is the limiting reagent as it limits the formation of product and H_2 is the excess reagent.

(4.0-1.0) = 3.0 moles of  are left unreacted

Mass of remained=

Thus 6.0 g of H_2 will remain.

4 0
2 years ago
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