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Setler79 [48]
4 years ago
7

What are some examples of endothermic reactions?

Chemistry
2 answers:
Fudgin [204]4 years ago
8 0

Striking a match is an example of an endothermic reactions. Lighting a match gives out heat so this is an endothermic reaction.

Another example is melting ice cubes.

CaHeK987 [17]4 years ago
4 0
Some examples of endothermic reactions include melting solid salts, cooking an egg, baking bread, water evaporations and melting ice cubes
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A detailed description of what Alexander Fleming was famous for?
Harlamova29_29 [7]
Hello there!

Alexander Fleming was actually known for discoveries and of what he has invented. He made many things such as medicine, and also, certain substances such as enzyme lysozyme. He made many awards, noble prize, and other highly certificates that made him a very interesting person. This was the kind of person Alexander Fleming was.

I hope this helps you!
6 0
3 years ago
A sample of lead has the density of 58 g/mL and a mass of 15.2g, what is the volume of the lead?
torisob [31]

Answer:

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Explanation:

d = m/V

=> V = m/d = 15.2/58 = 0.26 ml

4 0
1 year ago
Wally fluoride is an imaginary gaseous
mihalych1998 [28]

Answer:

\rho =1.96\frac{g}{L}

Explanation:

Hello there!

In this case, since this imaginary gas can be modelled as an ideal gas, we can write:

PV=nRT

Which can be written in terms of density and molar mass as shown below:

\frac{P}{RT} =\frac{n}{V} \\\\\frac{P}{RT} =\frac{m}{MM*V}\\\\\frac{P*MM}{RT} =\frac{m}{V}=\rho

Thus, by computing the pressure in atmospheres, the resulting density would be:

\rho = \frac{165/760 atm * 314.2 g/mol}{0.08206\frac{atm*L}{mol*K}*425K} \\\\\rho =1.96\frac{g}{L}

Best regards!

7 0
3 years ago
The volume of a gas is directly proportional to its temperature if the pressure of the particles is constant. This is a statemen
Deffense [45]
The gas is disposed proportional to the temperature to pressure of the particles
6 0
4 years ago
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VikaD [51]

Answer:

Its all of them

Explanation:

4 0
3 years ago
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