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3 years ago

True or false stars will eventually burn out causing the universe become cold and dark

Chemistry

2 answers:

Art [367]3 years ago

7 0

Answer:

False

Explanation:

At the end of the 1000 years, Satan will be released, defeated again, and then cast into the lake of fire (Revelation 20:7-10). Then, after a final judgment by God, the end of the world described in 2 Peter 3:10 occurs. The Bible tells us several things about this event.

jenyasd209 [6]3 years ago

7 0

The answer is true

Explanation

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How many carbon atoms are in the following molecule of isobutane? (ch3)3ch

wariber [46]

The subscript 3 outside of the parentheses means to multiply everything in the parentheses by 3, so it becomes a matter of addition:
3*(CH3) * (1 carbon atom)/(CH3) = 3 carbon atoms in (CH3)3
CH has one carbon atom and one hydrogen atom, so:
1 carbon atom in CH
Add both of them together, and you get 4 carbon atoms in isobutane

3 0

3 years ago

Draw the Lewis structure with the lowest formal charges for ClF2+ . Include nonzero formal charges and lone pair electrons in th

masya89 [10]

Answer:

See explanation

Explanation:

The formal charge is obtained from;

Formal Charge = Valence electrons on atom - [number of bonds - lone pair electrons]

The correct structure of ClF2+ is the structure attached to this answer (image obtained from quora) in which the formal charge on fluorine is zero and the formal charge on chlorine is + 1. This is the correct structure because the chlorine is more electronegative than fluorine as expected.

4 0

3 years ago

As we climb a mountain to a higher altitude, we experience a pressure increase.(T/F)

kenny6666 [7]

Answer:

As we climb a mountain to a higher altitude, we experience a pressure increase. -True

3 0

3 years ago

A chemist prepares a solution of zinc oxalate by measuring out of zinc oxalate into a volumetric flask and filling the flask to

anyanavicka [17]

<u>Answer:</u> The concentration of zinc oxalate is $1.7\times 10^{-11}M$

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in mL)}}$

We are given:

Moles of zinc oxalate = $0.0075\mu mol=7.5\times 10^{-9}mol$ (Conversion factor: $1mol=10^{6}\mu mol$ )

Volume of solution = 450 mL

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{7.5\times 10^{-9}\times 1000}{450mL}\\\\\text{Molarity of solution}=1.66\times 10^{-11}M=1.7\times 10^{-11}M$

In case of multiplication and division, the number of significant digits is taken from the value which has least precise significant digits. Here, the least precise number of significant digits are 2.

Hence, the concentration of zinc oxalate is $1.7\times 10^{-11}M$

4 0

3 years ago

List three action to reduce risk from hazard

Lena [83]

Answer:

Eliminate the hazard. ...

Substitute the hazard with a lesser risk. ...

Isolate the hazard. ...

Use engineering controls. ...

Use administrative controls. ...

Use personal protective equipment.

Explanation:

hehe

8 0

3 years ago

True or false stars will eventually burn out causing the universe become cold and dark￼￼￼

True or false stars will eventually burn out causing the universe become cold and dark