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2 years ago

Which two options are examples of waves refecting

Chemistry

1 answer:

sergey [27]2 years ago

8 0

Answer:

A voice echo

Your image in a mirror

Explanation:

hope this helps

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Draw the structural formula for dipeptide Pro-phe

Nata [24]

Answer:

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Explanation:

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2 years ago

Who

Mariulka [41]

2) generating power by using fossil fuels is harvesting a non-renewable resource. The more you harvest = the less you have

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3 years ago

1 mole of any gas is equivalent to?

iragen [17]

Answer:

22.4 L at standard temperature and pressure.

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2 years ago

Consider the following equilibrium: H2CO3+H2O = H3O+HCO3^-1. What is the correct equilibrium expression?

mylen [45]

Equilibrium expression is $Keq = \frac{[H3O+][HCO3^-]}{[H2CO3]}\\$

<u>Explanation:</u>

Equilibrium expression is denoted by Keq.

Keq is the equilibrium constant that is defined as the ratio of concentration of products to the concentration of reactants each raised to the power its stoichiometric coefficients.

Example -

aA + bB = cC + dD

So, Keq = conc of product/ conc of reactant

$Keq = \frac{[C]^c [D]^d}{[A]^a [B]^b}$

So from the equation, H₂CO₃+H₂O = H₃O+HCO₃⁻¹

$Keq = \frac{[H3O^+]^1 [HCO3^-]^1}{[H2CO3]^1 [H2O]^1}$

The concentration of pure solid and liquid is considered as 1. Therefore, concentration of H2O is 1.

Thus,

$Keq = \frac{[H3O+][HCO3^-]}{[H2CO3]}\\$

Therefore, Equilibrium expression is $Keq = \frac{[H3O+][HCO3^-]}{[H2CO3]}\\$

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2 years ago

What is created when an acid is mixed with a base?

Arturiano [62]

Answer:

If you mix equal amounts of a strong acid and a strong base, the two chemicals essentially cancel each other out and produce a salt and water. Mixing equal amounts of a strong acid with a strong base also produces a neutral pH (pH = 7) solution.

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2 years ago