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3 years ago

Huge Stars are how many times more (in mass) than our sun?

Chemistry

1 answer:

xenn [34]3 years ago

5 0

The answer should be answer B. More than three times the sun. I hope this helped! :)))

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How many subshells in 4s

anyanavicka [17]

Answer:

hhjkjggghjjjjjj

Explanation:

vbjjkkkkkkkj

3 0

2 years ago

If 10.5 L of a gas at 0.98 atm has its pressure increased to 1.50 atm, what is the new volume?

serg [7]

Answer:

The new volume of this gas is 6.86 liters.

Assumption: the temperature of this gas stays the same, and this gas is ideal such that Boyle's Law applies.

Explanation:

By Boyle's Law, the volume of an ideal gas shall be inversely proportional to the pressure on it when temperature stays the same (as in an isothermal process.)

In other words,

$\displaystyle V \propto \frac{1}{P}$ ,

where

$V$ is the volume of the gas, and
$P$ is the pressure on the gas.

$P_1 \cdot V_1 = P_2 \cdot V_2$ .

$\displaystyle V_2 = \frac{P_1 \cdot V_1 }{P_2}$ .

Assume that this gas is ideal. Also assume that this increase in pressure is isothermal. Apply Boyle's Law to find the new volume of this gas:

$\displaystyle V_2 = \frac{P_1 \cdot V_1 }{P_2} = \rm \frac{0.98\;atm \times 10.5\; L}{1.50\; atm} = 6.86\; L$ .

8 0

3 years ago

Which of these neutral atoms is largest in size se, ga ,or ca

Nutka1998 [239]

Ca is the largest in size:)

5 0

3 years ago

Read 2 more answers

Which element will only gain one electron during a chemical reaction?

Gelneren [198K]

Halogens

Explanation:

Halogens are a group of non-metals located in the seventh group on the periodic table. The will only gain one electron during a chemical reaction.

Halogens have a seven electrons in their outermost shell.
To complete the number of electrons in this shell, they need to gain an additional electron.
One more electron makes the halogen similar to the corresponding noble gas which is very stable.
Halogens are very reactive groups of elements and are highly electronegative.
They have a high affinity for electrons.
These elements are fluorine, chlorine, bromine, iodine and Astatine.

learn more:

Halogens brainly.com/question/6324347

#learnwithBrainly

7 0

3 years ago

A substance has a density of 6.26 g mL-1. What is the volume that a 2.49 g sample would occupy?

adell [148]

Answer:

<h3>The answer is 0.4 mL</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

$volume = \frac{mass}{density} \\$

From the question

mass = 2.49 g

density = 6.26 g mL-1

So we have

$volume = \frac{2.49}{6.26} \\ = 0.397763578...$

We have the final answer as

Hope this helps you

8 0

3 years ago