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3 years ago

Name at least two benefits coral reefs provide.

Chemistry

2 answers:

luda_lava [24]3 years ago

7 0

Answer:

Coral reefs are home to more species of fish and marine invertebrates than any other habitat in the world. Coral reefs protect beaches and shorelines from the impact of waves. Without coral reefs, beaches and shorelines can be severely damaged or washed away. Corals also produce unique chemicals that have potential uses in medicine.

Explanation:

trust me

Serga [27]3 years ago

6 0

Answer:

1. provide habitats and shelter for many marine organisms 2. Coral reefs protect coastlines from storms and erosion 3. provide jobs for local communities

Explanation:

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Wat is diffrent from a square and trapisode

Vikki [24]

The main difference between a square and a trapezoid is that a square has two pairs of parallel sides, while a trapezoid only has one

4 0

3 years ago

Find the no. of atoms present in 40g of nitrogen gas at STP?

nika2105 [10]

Answer:

8.60 * $10^{23}$ atoms N2

Explanation:

We want to convert grams to moles and then moles to atoms.

First, we convert grams of nitrogen gas (which is N2) to moles. To do so, we need the molar mass of N2, which is just 14.01 * 2 = 28.02 g.

40 g N2 * $\frac{1 mol N2}{28.02 g N2}$ = 1.43 mol N2

Now, we need to convert moles to atoms by using Avogadro's number, which is $6.022*10^{23}$ :

1.43 mol N2 * $\frac{6.022*10^{23} atoms N2 }{1 mol N2}$ = 8.60 * $10^{23}$ atoms N2

Thus, the answer is 8.60 * $10^{23}$ atoms N2.

6 0

3 years ago

Aisha wonders whether wind or water causes the most erosion. She set up an experiment in which she used a watering can to pour w

jeka94

Water cause more erosion over time

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3 years ago

The solubility of calcium sulfate in water is 0.667 grams per liter. If a calcium sulfate solution had a concentration of 0.502

Lena [83]

Answer:

unsaturated

Explanation:

All solutions have a definite capacity of dissolving solute in it.

Unsaturated solutions are the solutions which contain less amount of solute than the maximum capacity of dissolving the solute. If more amount of solute is added in such a way a point is reached where addition of more solute cannot be dissolved. The solution is known as saturated solution.

Amount dissolved > Maximum solubility limit, the solution is saturated.

Amount dissolved < Maximum solubility limit, the solution is unsaturated.

If the amount of the salt exceeds the solubility limit, then the solution is saturated solution. If it is less than the limit given, then it is unsaturated solution.

The solubility = 0.667 grams per liter

Amount dissolved = 0.502 grams per liter

Since,

Amount dissolved < Maximum solubility limit, the solution is unsaturated.

8 0

3 years ago

Given an ion with a charge of +4, how many ions with a charge of -2 will be necessary to create a stable compound? Explain.

Eduardwww [97]

Answer:

$\boxed {\boxed {\sf 2 \ ions}}$

Explanation:

A stable compound has a net charge of 0. Basically, when added, the two ion charges must equal 0 and balance each other out.

We have one ion with a charge of +4. There is another ion of -2. Clearly, these are not balanced yet.

We need more -2 ions to balance it. If we have 2 ions, then their charge is -4 because:

2 * -2 charge = -4 charge

The +4 ion and 2 -2 ions (with a charge of -4) balance each other out and create a net charge of 0. So, <u>2 ions with a charge of -2</u> are necessary to create a stable compound.

3 0

3 years ago