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Masteriza [31]
3 years ago
10

the area that stretches from the highest high-tide line on land out to he point of the continental shelf exposed by he lowest lo

w tide is called the
Chemistry
1 answer:
allsm [11]3 years ago
4 0
Is called the Intertidal zone

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A beaker holds 962 g of a brine solution that is 6.20 percent salt. If 123g of water are evaporated from the beaker, how much sa
denpristay [2]

Answer:

13.687 grams of salt should be added

The total grams of 8.6% of brine solution produced is 852.687g

Explanation:

Solution mass= 962g

Salt= 6.2%

Water = 93.8%

962 gram of water is made up of:

902.356g ( due to vaporization which reduces mass)

= 902.356 - 123

= 779. 356g of water

59.644g of salt.

If we add x gram of salt for making brine solution up to 8.6%

=(59. 644g + x)g.of salt

% salt = Mass of Salt / Total mass of solution

= 0.086= 59.644 + x / 779.356 + 59.644 + x

= 59.644 + x / 839 + x

x= 13.687 g of salt

Grams of 8.6% brine solution will be:

Gram of water + total gram of salt added to form 8.6% brine solution.

= 779.356g +59.644g + 13.687g

= 852.687g

The total grams of 8.6% of brine solution produced is 852.687g

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2 years ago
Tell me what happens during Observing a chemical change
worty [1.4K]

Explanation:

Gas bubbles can appear, there may be a color change, there may be a temperature change, there could be the production of light, volume change, change in smell or taste, or formation of a precipitate.

In a chemical change, atoms react with each other to form a new substance/product.

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How many atoms are in two water molecules? pls and thxxxxxxxxx
arlik [135]

Answer:

A water molecule consists of three atoms; an oxygen atom and two hydrogen atoms, which are bond together like little magnets. The atoms consist of matter that has a nucleus in the centre. one mole of water contains 6.02 x 1023 MOLECULES of water But each molecule of water contains 2 H and 1 O atom = 3 atoms, so there are approximately 1.8 x 1024 atoms in a mole of water.Feb 12, 2003

Explanation:

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What is the name of the polyatomic in MgSO4?
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Magnesium Sulfate

Explanation:

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3 years ago
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I believe the compound is Phosphorus pentoxide
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