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aivan3 [116]
3 years ago
7

A flask contains 0.160 mol of liquid bromine, what are the number of bromine molecules present

Chemistry
1 answer:
slega [8]3 years ago
6 0

Answer:

9.64 x 10^22

Explanation:

To go from moles to molecules, you multiply by Avogadro's number, 6.022 x 10^23, so you get 9.64 x 10^22.

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Suppose you plant a seed and observe that a tree of large mass grows from it. The tree achieves a final mass that changes very l
Marta_Voda [28]
<span>Suppose you plant a seed and observe that a tree of large mass grows from it. The tree achieves a final mass that changes very little for years afterward.<span>

</span>Answer: Of the options presented above the one that is true about the tree is answer choice B) Both anabolic and catabolic reactions took place in the seed and tree when it was young and growing, and both continue now even though the tree reached a stable mass.

I hope it helps, Regards.</span>
5 0
3 years ago
Read 2 more answers
Classify the substances according to the strongest solute-solvent interaction that will occur between the given substances and w
Solnce55 [7]

Answer: NH_3 and C_2H_5OH are hydrogen boding, AlCl_3 and FeBr_3 are ion-dipole forces.

Explanation: If the bond is formed between a metal and a non metal then it is known as ionic bond and ionic compounds have positive and negative ions and so they have ion-dipole forces. Aluminium chloride and Iron(III)bromide both are ionic as they have a bond between a metal and non metal and so both of these have ion-dipole forces.

Ammonia and ethanol both are polar molecules and we know that polar molecules have dipole-dipole forces.

A hydrogen bond could form if hydrogen is bonded with more electron negative atom(N, O or F).

In ammonia, H is bonded to N and in ethanol, H is bonded to O, so both of these molecules must have hydrogen bonding. Since hydrogen bond is stronger as compared to dipole - dipole forces, we will say that both ammonia and ethanol have hydrogen bonding.

7 0
4 years ago
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How would you ask a girl out. I know that I can use my voice, but I don’t know what to say.
kirill [66]

Answer:

Just go out there and be yourself brother!

Explanation:

If she doesn't like you, she doesn't like the real you, therefore you don't deserve her! lol

4 0
3 years ago
A typical person has an average heart rate of 75.0 beats/min. Calculate the following a)How many beats does she have in 7.0 year
hram777 [196]

Let us first convert years to minute.

7 years * (365 days / year) * (24 hours / day) * (60 minutes / hour) = 3,679,200 minutes

 

a. beats = 75.0 beats/min * 3,679,200 minutes

beats = 275,940,000 beats

Since the original given is 7.0 years (2 significant figures), therefore:

beats = 270,000,000 beats

 

b beats = 75.0 beats/min * 3,679,200 minutes

beats = 275,940,000 beats

Since the original given is 7.000 years (4 significant figures), therefore:

<span>beats = 275,900,000 beats</span>

5 0
3 years ago
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What is the equivalent of 0 Kelvin on the Celsius scale?
ryzh [129]
Kelvin = celsius + 273 so...
0 = C +273
-273 = C
some people use 273 or 273.15 just depends on the teacher.
3 0
4 years ago
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