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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A carbon rod takes up 105 mL of space. With a density of 2.26 g/mL, what

aleksandrvk [35]

Hey there!

Mass = ?

volume = 105 mL

Density = 2.26 g/mL

Therefore:

D = m / V

2.26 = m / 105

m = 2.26 * 105

m = 237.3 g

Hope this helps!

8 0

2 years ago

You want to make 100 mL of a 2.5 M stock solution of calcium chloride (molecular weight 110.98 g/mol). How many grams of calcium

Evgesh-ka [11]

Answer:

27.7 g

Explanation:

100 mL = 0.100 L

To solve this problem we use the definition of molarity:

M = mol / L

From the problem we're given M = 2.5 M and volume = 0.100 L. We use the above formula and calculate the required moles of calcium chloride (CaCl₂):

2.5 M = moles / 0.100 L

moles = 0.25 moles CaCl₂

Finally we use the molecular weight of calcium chloride to calculate the required mass:

0.25 moles CaCl₂ * 110.98 g/mol = 27.745 g CaCl₂

Rounding to the nearest tenth of a gram the answer is 27.7 g.

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3 years ago

What is the value of the equilibrium constant for this redox reaction? 2Ag+(aq) + Zn(s) → 2Ag(s) + Zn2+(aq) E = +1.56 V K = 2.25

bonufazy [111]

I think the answer is 5.04x1052. I hope this helps

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3 years ago

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How do functional groups affect the chemical properties of a molecule?

Setler [38]

In organic chemistry, functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. The same functional group will undergo the same or similar chemical reactions regardless of the size of the molecule it is a part of.

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3 years ago

True or False: Particles that are moving faster have a higher temperature

allochka39001 [22]

Answer:

true

Explanation:

I'm not sure why cause I dont know how to explain but it's TRUE

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3 years ago

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