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2 years ago

6

One way to represent a model of an atom is in a drawing. What is another way to show an atomic model?

1 answer:

mamaluj [8]2 years ago

7 0

I think by writing electronic configuration.

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Describe how the size of the sun compares to the sizes of the other stars.

alina1380 [7]

Answer:

The sun's circumference is about 2,713,406 miles (4,366,813 km). It may be the biggest thing in this neighborhood, but the sun is just average compared to other stars. Betelgeuse, a red giant, is about 700 times bigger than the sun and about 14,000 times brighter.

Explanation:

looked it up

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2 years ago

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What type of reaction does the following equation represent?

Ostrovityanka [42]

Answer:

B. double-replacement RXN

Explanation:

more specifically, this is a precipitation rxn.

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2 years ago

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Which is a NOT a freshwater source on Earth?

cluponka [151]

Answer:

B the atmosphere it's not on earth and I'm pretty sure the atmosphere doesn't have water in

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2 years ago

A 7.00-mL portion of 8.00 M stock solution is to be diluted to 0.800 M. What will be the final volume after dilution? Enter your

amm1812

Explanation:

The number of moles of solute present in liter of solution is defined as molarity.

Mathematically, Molarity = $\frac{\text{no. of moles}}{\text{Volume in liter}}$

Also, when number of moles are equal in a solution then the formula will be as follows.

$M_{1} \times V_{1} = M_{2} \times V_{2}$

It is given that $M_{1}$ is 8.00 M, $V_{1}$ is 7.00 mL, and $M_{2}$ is 0.80 M.

Hence, calculate the value of $V_{2}$ using above formula as follows.

$M_{1} \times V_{1} = M_{2} \times V_{2}$

$8.00 M \times 7.00 mL = 0.80 M \times V_{2}$

$V_{2} = \frac{56 M. mL}{0.80 M}$

= 70 ml

Thus, we can conclude that the volume after dilution is 70 ml.

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2 years ago

What information does Jaime need to evaluate the accuracy of his calculation?

Effectus [21]

Answer:

well we can't awnser this we don't have the full information srry♥️✨

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3 years ago

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