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3 years ago

Combustibility is the ability of a substance to do what?

Chemistry

2 answers:

mylen [45]3 years ago

5 0

How fast a substance can catch fire or combust with oxygen

nikklg [1K]3 years ago

5 0

Combustibility is an exothermic ability to literally combust, consume oxygen, to burn up.

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How do scientists test ideas about chemical evolution?

maksim [4K]

I think they test ideas about chemical evolution by doing experiments. Hope this helps

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4 years ago

Read 2 more answers

What type of bond is shown by the Lewis dot structure?

harina [27]

I believe this is a triple bond with Nitrogen

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4 years ago

A vertical cylindrical tank contains 1.80 mol of an ideal gas under a pressure of 0.300 atm at 20.0°C. The round part of the tan

frez [133]

Answer:

Part A $m = 97.37$ Kg

Part B $H = 4.59$ meters

Explanation:

Part A

Pressure is equal to force per unit area

$P = \frac{F}{A}$

Here force is equal to the weight of the piston

Thus

$P = \frac{m*g}{A}$

On rearranging the equation, we get -

$m = \frac{PA}{g} \\$ $m = \frac{P\pi r^2}{g}$

Substituting the given values we get

$m = \frac{0.3*1.013*10^5*0.1^2}{9.8} \\m = 97.37$

Part B

We know that

$V = \pi r^2h\\$

On substituting the given values we get -

$pV = nRT\\V = \frac{nRT}{p}$

$V = \frac{1.8*8.314*293}{0.3039*10^5} \\V = 0.1442 m^3$

Height

$= \frac{V}{\pi r^2} \\= \frac{0.1442}{\pi 0.1^2} \\= 4.59$

4 0

3 years ago

Which section of elements in the periodic table are the best conductors of heat and electricity

const2013 [10]

The metals. Primarily the left side

4 0

3 years ago

This is due tomorrow... :How can you tell the mass was conserved in a chemical reaction?

kipiarov [429]

Answer:

Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions.

Explanation:

hope this help :)

3 0

3 years ago