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2 years ago

If an iron nail was placed in the copper sulfate solution, would you see a

Chemistry

1 answer:

EleoNora [17]2 years ago

8 0

Answer:

Iron displaces copper ions

Explanation:

which means that iron in more reactive than copper.

(Fe2+) and cupric ion (Cu2 +) is converted into metallic copper. Fe (s) + Cu2 + (aq) —→ Fe2+ (aq) + Cu (s).

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Which of the following molecules has one lone pair of electrons?

BigorU [14]

You can automatically rule out CH₄ since it has no lone pairs at all around the central atom. Water has 2. Ammonia is the only Lewis structure that contains one lone pair.

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3 years ago

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Find the pH of HCl with a concentration of 0.00006M<br> Round to the nearest whole number

Tpy6a [65]

Answer:

4.22

Explanation:

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pH helps to find the acidity or alkalinity of an aqueous solution.

The number of hydrogen ions (protons) present in a solution is determined by the pH scale.

A pH greater than 7 makes the water more alkaline and a pH less than 7 makes the water more acidic.

$pH=-\log [H^+]=-\log [0.00006]=4.22$

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3 years ago

Coefficients are used in a chemical formula to show the number of each element. True or False

ANTONII [103]

Answer:

The same number of each element present before the reaction takes place must also be present on the product side of the equation. Coefficients are placed in front of a chemical formula to show the number of moles of that substances that are necessary for the reaction to occur.

Explanation:

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3 years ago

0.0045 x 0.000789 sig fig

lesantik [10]

Answer:

The answer IS 0.0000035505. Hope it helps!

Explanation:

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4 years ago

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Beryllium Plus flourine

larisa [96]

Be is +2 charge

F is -1 charge

It is

BeF2

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3 years ago