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3 years ago

How many atoms are there in 2.43 g of mercury?

1 answer:

8 0

Number of moles of mercury = $\frac{weight of mercury}{molar mass of mercury} = \frac{2.43}{200.59} = 0.012 moles$ . Number of atoms = moles of Hg x 6.02 x 10^23 = 0.012 x 6.02 x 10^23 = 7.224 x 10^21 atoms. Hope this helps!

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Isabel needs an image to represent the carbon cycle for a presentation in her science class. She has the following diagrams to c

den301095 [7]

Answer:

Its B

Explanation:

Its pretty easy. Im three days late my bad my guy

8 0

3 years ago

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ATP is considered to be an energy carrier molecule. Where is the energy actually located in this molecule?

bixtya [17]

ATP is considered to be an energy carrier molecule. Energy is actually located in this molecule B in the bonds between phosphate groups.

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3 years ago

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QUESTION THREE

BartSMP [9]

Answer:

Odds to be given for an event that either Romance or Downhill wins is 11:4

Explanation:

Given an odd, r = a : b. The probability of the odd, r can be determined by;

Pr(r) = $\frac{a}{b}$ ÷ (

So that;

Odd that Romance will win = 2:3

Pr(R) = $\frac{2}{3}$ ÷ (

= $\frac{2}{3}$ ÷ $\frac{5}{3}$

= $\frac{2}{5}$

Odd that Downhill will win = 1:2

Pr(D) = $\frac{1}{2}$ ÷ (

= $\frac{1}{2}$ ÷ $\frac{3}{2}$

= $\frac{1}{3}$

The probability that either Romance or Downhill will win is;

Pr(R) + Pr(D) = $\frac{2}{5}$ + $\frac{1}{3}$

= $\frac{11}{15}$

The probability that neither Romance nor Downhill will win is;

Pr(neither R nor D) = (1 - $\frac{11}{15}$ )

= $\frac{4}{15}$

The odds to be given for an event that either Romance or Downhill wins can be determined by;

= Pr(Pr(R) + Pr(D)) ÷ Pr(neither R nor D)

= $\frac{11}{15}$ ÷ $\frac{4}{15}$

= $\frac{11}{4}$

Therefore, odds to be given for an event that either Romance or Downhill wins is 11:4

8 0

2 years ago

Two processes of plant reproduction are described below.

Stells [14]

Answer:

Process 1 is pollination and Process 2 is germination

Explanation:

Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds.

Germination refers to the process by which an organism grows from a seed or a spore. The most common forms of germination include a seed sprouting to form a seedling and the formation of a sporeling from a spore. Thus, germination occurs primarily in plant and fungal species.

I hope this help :)

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2 years ago

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Good day pleases help

klemol [59]

I can’t see the choices can you take another picture of this assignment please so i can help you

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3 years ago

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