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Stella [2.4K]
3 years ago
5

What is an indication that a lake is healthy?

Chemistry
2 answers:
N76 [4]3 years ago
7 0

Answer:

D

Explanation:

As bioindicators are the organism that indicate or monitor the health of the environment

Inessa [10]3 years ago
5 0

Answer:

is D

Explanation:

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What is milk best described as? solution, suspension, compound, or colloid?
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A chemist combines iodoethane (ch3ch2i with sodium hydroxide (naoh in an aqueous solution at 100°c. which change to the reaction
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The replacing of sodium hydroxide with potassium hydroxide (KOH) to the reaction will least affect the organic product that forms.

 

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4 years ago
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As a chemical reaction occurs, the thermometer in the container records a drop in temperature. What is true of the reaction?
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4 0
3 years ago
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How many grams of Na2SO4 can be produced from 423.67 g of NaCl?
san4es73 [151]

Mass of  Na2SO4= 514.18 grams

<h3>Further explanation</h3>

Given

423.67 g of NaCl

Required

mass of  Na2SO4

Solution

Reaction

2NaCl + H2SO4 → Na2SO4 + 2HCl

mol NaCl :

= 423.67 g : 58.5 g/mol

= 7.24

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= 1/2 x mol NaCl

= 1/2 x 7.24

= 3.62

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= 3.62 mol x 142,04 g/mol

= 514.18 grams

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3 years ago
Which type of radioactive decay produces
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