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3 years ago

I need help fast plz 10 points and maybe a brainly

Chemistry

2 answers:

Thepotemich [5.8K]3 years ago

5 0

What do you need help with is there a picture or something so I can help you

Elina [12.6K]3 years ago

3 0

What do you need darlin

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Below is the word equation for the reaction between sodium hydroxide and hydrochloric acid. Identify the reactant(s) in the reac

Goshia [24]

I a chemical reaction, we have the reactants in the left part,followed by an arrow and then the products.

So, the reactants are the two that are in the left part of the equation:

Sodium hydroxide and Hydrochloric acid

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1 year ago

Calculate the pH of a solution that is 0.113 M HCI.

Alex Ar [27]

Simplified concentration

$\\ \rm\Rrightarrow 1.13\times 10^{-2}M$

Now

$\\ \rm\Rrightarrow pH=-log[H^+]$

$\\ \rm\Rrightarrow pH=-log(1.13\times 10^{-2})$

$\\ \rm\Rrightarrow pH=-log1.13-log10^{-2}$

$\\ \rm\Rrightarrow pH=-0.05+2$

$\\ \rm\Rrightarrow pH=1.95$

Highly acidic

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2 years ago

How many atoms are in 8.9 moles of carbon?

shepuryov [24]

Answer:

5.36 x 10²⁴ atoms C

Explanation:

1 mole of any substance contains 6.02 x 10²³ particles of the substance. So, 8.9 mole Carbon would contain 8.9 moles x 6.02 x 10²³ atoms C/mole => 5.36 x 10²⁴ atoms of Carbon.

4 0

3 years ago

How should this combustion reaction be balanced?

nikdorinn [45]

Answer:

Answer is C. C5H8 + 7O2 -> 5CO2 + 4H2O

5 0

3 years ago

what effect do concentration changes have on the reaction rate? A. The rate is affected by the concentrations multiplied by the

AleksAgata [21]

Answer:

D. The rate is affected by concentrations raised to the power of an exponent.

Explanation:

For a general reaction A + B ⟶ products, the rate law is

$\text{rate} = k\text{[A]}^{m}\text{[B]}^{n}$

This says that the rate is directly proportional to the concentrations of the reactants, each raised to the power of an exponent.

A is wrong. The concentrations are raised to the power of an exponent.

B is wrong. The rate constant is not an exponent.

C is wrong. The rate constant is not raised to the power of an exponent.

7 0

3 years ago