What is acid rain? Please answer it as fast as possible....I really need it......

Chemistry

2 answers:

Volgvan2 years ago

8 0

<span>Acid rain is rainfall made from atmospheric pollution. </span>

Ne4ueva [31]2 years ago

3 0

Accid rain is essentially rain but with not water but pollution from the atmosphere. Hope it helped. :)

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In Chef’s famous Beef Wellington, you have to get the pastry just right. According to the recipe, Chef uses 400g of butter. But

lisabon 2012 [21]

Amount of butter Chef used = 400g

1 g = 0.035274 oz

Therefore, 400 g = 0.035274 x 400 oz = 14.1096 oz

A) Chef Jacqueline should use __14.1096______ oz of butter.

1 g = 0.00220462 pound

Therefore, 400 g = 0.00220462 x 400 pound = 0.881848 pound

B) Chef Amy should use _0.881848________ pounds of butter.

5 0

2 years ago

What is science ? what is its formula<br>

Citrus2011 [14]

There isn’t a formula for science. There are many different sciences and different formulas for different units for different sciences.

Science is very complex.

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2 years ago

1) A light bulb takes in 30 of energy per second. It transfers 3j as use

natta225 [31]

Answer:

$\boxed{\text{10 \%}}$

Explanation:

The formula for efficiency is

$\begin{array}{rcl}\text{Efficiency} & = & \dfrac{\text{useful energy out}}{\text{energy in}} \times 100 \,\% \\\\\eta & = & \dfrac{w_{\text{out}}}{w_{\text{in}} } \times 100 \,\%\\\end{array}$

Data:

Useful energy = 3 J

Energy input = 30 J

Calculation:

$\begin{array}{rcl}\eta & = & \dfrac{\text{3 J}}{\text{30 J}} \times 100 \,\%\\\\\eta & = & 10 \, \%\\\end{array}\\\text{ The efficiency is }\boxed{\textbf{10 \%}}$