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3 years ago

Describe two negative effects that water pollution can have on the environment. Explain one way water pollution can be reduced.

2 answers:

7 0

Water pollution affects the fish, and then we eat the fish so the fish affects us. im not sure about the first part.Do<span> not dispose of household cleaning down the toilet.

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Romashka-Z-Leto [24]3 years ago

5 0

Answer:

1) Adverse effect on aquatic life also increase in biological oxygen demand.

2) Biomagnification of pollutants

Explanation:

Water pollution is caused by unwanted addition of waste, animal debris, industrial effluents etc in a water body.

Water pollution may cause many direct and indirect harmful effects on environment. To name a few:

a) Decrease in level of oxygen leading to death of aquatic organism like fish.

Increase in biological oxygen demand.

b) Biomagnification: a pollutant may enter food chain from water and some pollutant may enter food chain contaminating other members of food chain.

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Jeff has 10 grams of water and 10 grams of vegetable oil in separate containers. both liquids have a temperature of 24°c. jeff h

Tema [17]

ANSWER: From this experiment, Jeff can conclude that the heat capacity of oil is lower than that of water which means that oil requires less energy per gram of liquid in order to change its temperature.

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2 years ago

Which statement correctly compares what occurs when molecules absorb photons in the microwave region with what occurs when molec

ValentinkaMS [17]

Answer:

d.) Microwave photons cause the molecules to increase their rotational energy states, whereas infrared photons cause electrons in the molecules to increase their electronic energy states.

Explanation:

Microwave: transitions in the molecular rotational levels

Infrared: transitions in molecular vibrational levels

UV/Visible: transitions in electronic energy levels.

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3 years ago

Read 2 more answers

A sample of 0.600 mol of a metal m reacts completely with excess fluorine to form 46.8 g of mf2. how many moles of f are in the

oksian1 [2.3K]

The balanced chemical reaction is expressed as:

M + F2 = MF2

To determine the moles of the element fluorine present in the product, we need to determine the moles of the product formed from the reaction and relate this value to the ratio of the elements in MF2. We do as follows:

moles MF2 produced = 0.600 mol M ( 1 mol MF2 / 1 mol M ) = 0.600 mol MF2
molar mass MF2 = 46.8 g MF2 / 0.6 mol MF2 = 78 g/mol
moles MF2 = 46.8 g ( 1 mol / 78 g ) = 0.6 mol
moles F = 0.6 mol MF2 ( 2 mol F / 1 mol MF2 ) = 1.2 moles F

6 0

3 years ago

A sample of nitrogen gas is produced in a reaction and collected under water in a graduated cyliner. The temperature is 26.3 oC

Rudiy27

The mass of nitrogen collected is mathematically given as

M-N2=0.025gram

<h3>What is the mass of nitrogen collected?</h3>

Question Parameters:

A sample weighing 2.000g

the liberated NH3 is caught in 50ml pipeful of H2SO4 (1.000ml = 0.01860g Na2O).

T=26.3c=299.3K

Pressure=745mmHg=745torr

Pressure of N2=745-25.2=719.8torr

Generally, the equation for the ideal gas is mathematically given as

PV=nRT

Therefore

719.8/760=45.6/1000=n*0.0821*299.3

n=0.00176*14

In conclusion, the Mass of N2

M-N2=0.00176*14

M-N2=0.025gram