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2 years ago

10

Whats the answer giving brainlist to first correct one

2 answers:

katrin [286]2 years ago

7 0

Answer:

C

Explanation:

zloy xaker [14]2 years ago

4 0

The Answer is letter c

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A consequence of "yo-yo dieting is that A. cholesterol levels will increase. B. A person will develop allergies to certain foods

Tju [1.3M]

the correct option is C.

Weight cycling refers to the repeated process of loosing and gaining weight. When weight cycling is caused by dieting it is called yo-yo dieting. Yo-yo dieting has many potential negative effects and one of them is increases in body fat percentage. Other negative consequences include: diabetes, fatty liver, high blood pressure, etc.

5 0

2 years ago

Read 2 more answers

How many moles are present in 102.55g of water (H20)

natulia [17]

About 5 moles of water are present. To be precise it’s 5.666666667 moles of H2O

6 0

3 years ago

Read 2 more answers

If the Ksp of NaCl is experimentally determined to be 43.9, then what is the concentration of Na (in M) when it begins to crysta

serg [7]

Answer:

6.63 M

Explanation:

NaCl(s) ---> Na^+(aq) + Cl^-(aq)

Given that [Na^+] = [Cl^-] = s

Where s= concentration of the both ions

Ksp = s^2

s= √Ksp

s= √43.9

s= 6.63 M

4 0

3 years ago

Y+-7= 1/2 (4)+b help idk what it is

Vera_Pavlovna [14]

$y + - 7 = \frac{1}{2} (4) + b \\ y - 7 = 2 + b \\ y = 9 + b$
that is the answer, but what is the y value?

4 0

2 years ago

Working on-board a research vessel somewhere at sea, you have (carefully) isolated 12.5 micrograms (12.5 ×10–6 g) of what you ho

german

Answer:

The value is $Z = 311.33 \ g/mol$

Explanation:

From the question we are told that

The mass of saxitoxin is $m = 12.5 mg = 12.5 * 10^{-6} g$

The volume of water is $V = 3.10 mL = 3.10 *10^{-3} L$

The osmotic pressure is $P = 0.236 = \frac{0.236}{760} = 3.105 * 10^{-4} atm$

The temperature is $T = 19^oC = 19 + 273 = 292 \ K$

Generally the osmotic pressure is mathematically represented as

$P = C * T * R$

Here R is the gas constant with value

$R = 0.0821 ( L .atm /mol. K)$

and C is the concentration of saxitoxin

So

$3.105 * 10^{-4} = C * 0.0821 * 292$

$C = 1.295 *10^{-5} mol/L$

Generally the number of moles of saxitoxin is mathematically represented as

$n = C * V$

=> $n = 1.295 *10^{-5} *3.10 *10^{-3}$

=> $n = 4.015 *10^{-8} \ mol$

Generally the molar mass of saxitoxin is mathematically represented as

$Z = \frac{m}{n}$

=> $Z = \frac{12.5 * 10^{-6}}{ 4.015 *10^{-8}}$

=> $Z = 311.33 \ g/mol$

5 0

3 years ago