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3 years ago

Describe how heart failure affects the body.

1 answer:

5 0

Your heart works harder therefore it becomes weaker and the damage to your heart increases. Your body gets less oxygen which can lead to shortness of breathe, legs swelling and fluid buildup. Your body tries to keep the blood it has to supply to the heart and the brain.

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What does B represent?

Mashutka [201]

Answer: Botanical Acid

Explanation:

8 0

3 years ago

Determine the hydrogen ion concentration of solution B. [1]

bazaltina [42]

The hydrogen Ion concentration of solution B is
1.0 x 10^-5 or 0.000 010 M

You can see that this will be proportional to the amount of B's PH compared to A's

hope this helps

8 0

3 years ago

125 ml of nitrogen gas is collected at 70.0 degrees Celsius. The pressure

dybincka [34]

Answer: Volume of the gas at STP is 22.53 L.

Explanation:

Given : Volume = 125 mL (as 1 mL = 0.001 L) = 0.125 L

Temperature = $70^{o}C = (70 + 273) K = 343 K$

Pressure = $125 kPa = 125 kPa \times \frac{0.01 atm}{1 kPa} = 1.25 atm$

According to the ideal gas equation, the volume of given nitrogen gas is calculated as follows.

PV = nRT

where,

P = pressure

V = volume

n = number of moles

R = gas constant = 0.0821 L atm/mol K

T = temperature

Substitute the values into above formula as follows.

$1.25 atm \times V = 1 mol \times 0.0821 L atm/mol K \times 343 K\\V = \frac{1 mol \times 0.0821 L atm/mol K \times 343 K}{1.25 atm}\\= \frac{28.1603}{1.25} L\\= 22.53 L$

Hence, volume of the gas at STP is 22.53 L.

5 0

3 years ago

A farmer uses water to irrigate his potato crops. Which roles of water does this examplify

exis [7]

Answer:

This exemplifies the agricultural role of water.

Explanation:

7 0

3 years ago

What happens to energy when methane increases?

Zanzabum

Answer:

How does methane gas affect the environment?

If methane leaks into the air before being used — from a leaky pipe, for instance — it absorbs the sun's heat, warming the atmosphere. For this reason, it's considered a greenhouse gas, like carbon dioxide.

Explanation:

4 0

3 years ago