2 years ago

What does thermal energy refer to?

Chemistry

2 answers:

Trava [24]2 years ago

7 0

Answer:

Explanation:

ludmilkaskok [199]2 years ago

5 0

my answer is D sorry if I'm wrong

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How many molecules of water are in 1.52 moles of water?

abruzzese [7]

Answer:

9.15×10²³molecules

Explanation:

moles=number of particles/Avogadro's number

1.52=x/6.02×10²³

by cross multiplication;

x=1.52×6.02×10²³

=9.15×10²³

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3 years ago

According to one acid-base theory, a base is an

tatiyna

A. Proton acceptor and this is according to the bronsted Lowry theory

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3 years ago

Which explains the basis of the Biuret test? a. Under base conditions, copper ions bind to the amino groups of proteins and chan

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Answer:A

Explanation:

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2 years ago

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What Kelvin temperature is the same as -13° Celsius?

zavuch27 [327]

Answer:

Degrees Kelvin = Degrees Celsius + 273.15

Degrees Kelvin = -13 + 273.15

= 260.15 °

Explanation:

8 0

3 years ago

Hydrogen is prepared commercially by the reaction of methane and water vapor at elevated temperatures. CH₄(????) + H₂O(????) ⇌ 3

sammy [17]

Answer:

6.2846

Explanation:

Given that:-

Concentrations at equilibrium :-

$[CH_4]=0.126\ M$

$[H_2O]= 0.242\ M$

$[CO]= 0.126\ M$

$[H_2]= 1.15\ M$

The equilibrium reaction is:-

$CH_4+H_2O\rightleftharpoons 3H_2+CO$

The expression for equilibrium constant is:

$K_{c}=\frac {\left [ H_2 \right ]^3\left [ CO \right ]}{\left [ CH_4 \right ]\left [ H_2O \right ]}$

Applying the values as:-

$K_c=\frac{1.15^3\times 0.126}{0.126\times 0.242}=6.2846$

<u>The equilibrium constant for the reaction is:- 6.2846</u>

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2 years ago