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3 years ago

PLEASE HELP Describe at least two advantages and two disadvantages of using hydropower as a

Chemistry

1 answer:

Hatshy [7]3 years ago

3 0

Answer:

Advantage: Hydropower is a fueled by water, so it's a clean fuel source.

Advantage: It is a domestic source of energy in the US.

Disadvantage: Fish populations can be impacted if fish cannot migrate upstream past impoundment dams to spawning grounds or if they cannot migrate downstream to the ocean.

Disadvantage: Hydropower plants can be impacted by drought. When water is not available, the hydropower plants can't produce electricity.

Explanation:

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IRINA_888 [86]

Answer:

i think its a wold with kids drinking its milk

Explanation:

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3 years ago

If 280.4 g of KOH react with an excess of FeCl3, how many grams of Fe(OH)3 will be produced?

aleksandrvk [35]

Answer:

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3 years ago

The decomposition reaction of A to B is a first-order reaction with a half-life of 2.42×103 seconds: A → 2B If the initial conce

kipiarov [429]

Answer:

$t=23.5min$

Explanation:

Hello,

In this case, since the rate equation turns out as shown below due to the first-order kinetics:

$\frac{dC_A}{dt}=-kC_A$

Its integration results:

$\int\limits^{C_A}_{C_A^0} { \frac{dC_A}{C_A}} \,=-k\int\limits^t_0 {} \, dt\\ln(\frac{C_A}{C_A^0})=-kt$

However, the rate constant is computed by considering the given half-life time as follows:

$k=\frac{ln(2)}{t_{1/2}}=\frac{ln(2)}{2.42x10^3s}=2.86x10^{-4}s^{-1}$

In such a way, the required time in minutes to diminish the concentration by 66.8% of the initial turns out:

$C_A=0.668C_A^0$

$ln(\frac{0.668C_A^0}{C_A^0})=-kt$

$t=\frac{-ln(0.668)}{2.86x10^{-4}s^1}=1408.3s*\frac{1min}{60s} \\t=23.5min$

Best regards.

3 0

3 years ago

I didn't really understand the explanation, can it be broken down

pentagon [3]

Answer:

40.06

Explanation:

100

= 40.06

formula:

<u>(% of isotope A * mass of A) + (% of isotope B * mass of B) ......</u>

100

4 0

3 years ago

Read 2 more answers

Write a balanced chemical equation for dissolving calcium chloride in water.

jarptica [38.1K]

CaCl2(s) -> Ca^2+(aq)+Cl(aq)

3 0

4 years ago