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Pie
3 years ago
8

Help If U Know This.....Please

Chemistry
1 answer:
skad [1K]3 years ago
6 0
Question 5)

1 Hour: 100g
40 Minutes: 50g
20 Minutes: 25g
0 Minutes: 12.5g

Question 6)

160 Days: 80ou
120 Days: 40ou
80 Days: 20ou
40 Days: 10ou
0 Days: 5ou

Every period of time, the radioactive isotopes halve in numbers as they emit radiation.

I think you now know the gist. Try doing the rest yourself.

Good luck.
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How do her cells use these molecules to release energy for her body to run?
Anika [276]
In cells use oxygen to release energy stored in sugars such as glucose. In fact, most of the energy used by the cells in your body is provided by cellular respiration. Just as photosynthesis occurs in organelles called chloroplasts, cellular respiration takes place in organelles called mitochondria.
6 0
3 years ago
A helium balloon has a volume of 17.3 L
NemiM [27]

Answer:

15.28 L

Explanation:

Use combined gas law and rearrange formula

Change C to K

- Hope that helped! Please let me know if you need further explanation, as I can show you step by step.

5 0
3 years ago
Which of the following is supported by reliable evidence?
Tasya [4]
B. Theory of gravity
3 0
2 years ago
Does pb(no3)2 + Na3(PO4) = Pb3(PO4)2 + Na(NO3) have a precipitate?
ipn [44]

Answer:

Yes, Pb3(PO4)2.

Explanation:

Hello there!

In this case, according to the given balanced chemical reaction, it is possible to use the attached solubility series, it is possible to see that NaNO3 is soluble for the Na^+ and NO3^- ions intercept but insoluble for the Pb^3+ and PO4^2- when intercepting these two. In such a way, we infer that such reaction forms a precipitate of Pb3(PO4)2, lead (II) phosphate.

Regards!

4 0
3 years ago
Calculate the energy provided by a slice of bread containing 2 g of protein, 1 g of fat, and 20 g of carbohydrate. record your a
vichka [17]
 the energy gained by proteins and carbohydrates differs from the energy gained by fats.
proteins and carbohydrates both give 4 kcal per gram 
fats give 9 kcal per gram
mass of proteins - 2 g
energy given by proteins - 2 g x 4 kcal/g = 8 cal
mass of carbohydrates - 20 g 
energy given by carbohydrates - 20 g x 4 kcal/g = 80 cal
mass of fat - 1 g 
energy given by fat - 1 g x 9 kcal/g = 9 cal
total energy = 8 + 80 + 9 = 97 kcal
energy = 97 kcal
8 0
3 years ago
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