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3 years ago

What forms the structure called a coral reef

Chemistry

2 answers:

lina2011 [118]3 years ago

7 0

When the little fish die they sink to the bottom, and after time the skeletons build up on top of each other.

Usimov [2.4K]3 years ago

3 0

The skeleton of coral animals.

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How do I balance chemical equations ?<br>

Maru [420]

Answer & explanation:

To balance a chemical equation, we must make sure that there are equal amounts of each element in the equation on either side.

To balance an equation step-by-step we first start by counting the amount of each element on each side. If they aren't equal, we must make them amounts equal on either side.

After you make sure all the elements are balanced, the net charge on both sides must also be equal.

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3 years ago

Has any one done 2020 chemistry paper 1 aqa gcse

Mars2501 [29]

Answer:

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2 years ago

0.0300 mol of a substance had a mass of 4.50g. The relative formula mass of the substance is

Lunna [17]

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Explanation:

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2 years ago

What are the two most common elements in the entire universe

g100num [7]

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3 years ago

Read 2 more answers

slader An experiment is carried out where 13.9 g of solid NaOH is dissolved in 250.0 g of water in a coffee-cup calorimeter. Dis

kvv77 [185]

Answer:

The mass of the surrounding is $M_t = 263.9 \ g$

Explanation:

From the question we are told that

The mass of $NaOH$ is $m = 13.9 \ g$

The mass of water is $m_w = 250.0g$

The chemical equation for the dissociation process is

$NaOH _{(s) } ---> Na^{+}_{(aq)} + OH^{-} _{(aq)}$

The specific heat capacity of the mixture is $c_p = 4.18 J g^{-1} C^{-1}$

The combined mass of the solution is

$M_t = 13 + 250$

$M_t = 263.9 \ g$

The mass of the surround here is the mass of the coffee-cup calorimeter and this contain the mixture ( water and the NaOH ) so the mass of the surrounding is

$M_t = 263.9 \ g$

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3 years ago