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3 years ago

Why is it important to monitor pH levels in natural bodies of water?

Chemistry

2 answers:

AleksandrR [38]3 years ago

3 0

Answer:

Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically

Explanation:

pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic

dybincka [34]3 years ago

3 0

So the water is safe to drink, or so the aquatic life doesn’t die

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What is the volume, in liters, of 576 grams of so2 gas at stp?

katen-ka-za [31]

The volume in liters of 576 grams of SO2 gas at STP is calculated as below

calculate the moles of SO2 = mass/molar mass

= 576 g/64 g /mol = 9 moles

At STP 1mole =22.4 L
what 9 mole =? liters

by cross multiplication

= 22.4 L x 9 moles/ 1moles = 201.6 liters

5 0

2 years ago

The rate law for the decomposition of phosphine (PH3) is below. It takes 120. s for 1.00 M PH3 to decrease to 0.250 M. How much

Lubov Fominskaja [6]

Answer: 588.8 seconds

Explanation:

1.00 - 0.25 = 0.75M

4.00 - 0.320 = 3.68M

Therefore,

0.75M in 120 seconds

3.68M in x seconds

Cross multiply:

0.75*x = 120*3.68

x = 120*3.68/0.75

x = 588.8 seconds

8 0

3 years ago

Methane CH4 (g) reacts with oxygen gas to produce carbon dioxide and water. ____________________________________________________

nordsb [41]

Answer: The chemical equations are written below.

Explanation:

For a: Methane reacts with oxygen gas to produce carbon dioxide and water.

Combustion reaction is defined as the reaction in which a hydrocarbon reacts with oxygen gas to produce carbon dioxide and water

The chemical equation for the combustion of methane follows:

$CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)$

For b: Butane reacts with oxygen gas to produce carbon dioxide and water.

This is also an example of combustion reaction.

The chemical equation for the combustion of butane follows:

$2C_4H_{10}(g)+13O_2(g)\rightarrow 8CO_2(g)+10H_2O(g)$

For c: An aqueous solution of sulfuric acid reacts with aqueous potassium hydroxide to produce potassium sulfate and water.

When an acid reacts with a base, it leads to the formation of salt and water. This reaction is known as neutralization reaction

The chemical equation for the reaction of potassium hydroxide and sulfuric acid follows:

$H_2SO_4+2KOH\rightarrow K_2SO_4+2H_2O$

Hence, the chemical equations are written above.

4 0

3 years ago

Small opening in the epidermis of a leaf called guard cells allow water and other materials to enter and exit the leaf. True or

a_sh-v [17]

False and is this a test or something

7 0

3 years ago

1. How does light behave when it is shined on an object?

Mariulka [41]

Answer:

Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. For a smooth surface, reflected light rays travel in the same direction.

Explanation:

7 0

3 years ago