2 years ago

What are the effect of water pollition

1 answer:

6 0

it causes bacteria and viruses from human and animal waste, and a major cause of illness from contaminated drinking water. Diseases spread by unsafe water include cholera, giardia, and typhoid.

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Justify the statement nuclear energy is harmful as well as useful

dmitriy555 [2]

The beneficial effects of nuclear energy is usually overlooked because of its potentially devastating side-effects

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2 years ago

Which one of the following is not a valid expression for the rate of the reaction below? 4NH3 + 7O2 → 4NO2 + 6H2O Which one of t

Veseljchak [2.6K]

Answer : All of the above are valid expressions of the reaction rate.

Explanation :

The given rate of reaction is,

$4NH_3+7O_2\rightarrow 4NO_2+6H_2O$

The expression for rate of reaction for the reactant :

$\text{Rate of disappearance of }NH_3=-\frac{1}{4}\times \frac{d[NH_3]}{dt}$

$\text{Rate of disappearance of }O_2=-\frac{1}{7}\times \frac{d[O_2]}{dt}$

The expression for rate of reaction for the product :

$\text{Rate of formation of }NO_2=+\frac{1}{4}\times \frac{d[NO_2]}{dt}$

$\text{Rate of formation of }H_2O=+\frac{1}{6}\times \frac{d[H_2O]}{dt}$

From this we conclude that, all the options are correct.

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2 years ago

What is the function of the sensory and motor nerves?

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Sensory nerves gather information of the environment and send it to the brain, and motor nerves tell muscles to contract, thereby making you move.

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3 years ago

we can determine the velocity of a wave when given the _______ and the wavelength. (2 points) frequency amplitude crest equilibr

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Frequency.

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dezoksy [38]

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