3 years ago

Explain acid rain and it effects to the environment

1 answer:

4 0

Answer:Ian is looking at cells using a microscope. He sees a nucleus and a large vacuole in the central area of a cell. What type of cell is he most likely looking at?

Explanation:

Ian is looking at cells using a microscope. He sees a nucleus and a large vacuole in the central area of a cell. What type of cell is he most likely looking at?

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the temperature of a sample of water increases from 20celsius to 46.6celsius as it absorbs 5650 J of heat. what is the mass of t

Levart [38]

Answer:

m = 50.74 kg

Explanation:

We have,

Initial temperature of water is 20 degrees Celsius

Final temperature of water is 46.6 degrees Celsius

Heat absorbed is 5650 J

It is required to find the mass of the sample. The heat absorbed is given by the formula ad follows :

$Q=mc\Delta T$

c is specific heat of water, c = 4.186 J/g°C

So,

$m=\dfrac{Q}{c\Delta T}\\\\m=\dfrac{5650}{4.186\times (46.6-20)}\\\\m=50.74\ kg$

So, the mass of the sample is 50.74 kg.

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3 years ago

What is the molarity of 4 qof NaCl (MM=58.45) in 3,800 mL of solution?

tiny-mole [99]

Answer:

.018 M

Explanation:

grams/MM=ans./volume(L) = M

4/58.45=ans./3.8=.018 M

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3 years ago

(a) the temperature on a warm summer day is 87 Â°f. what is the temperature in Â°c? (b) many scientific data are reported at 25

olchik [2.2K]

Answers:

(a) 30.55 °C

(b) 298 K and 77°F

(c) 204.44 °C and 477.44 K

(d) -320.8 °F and -196 °C

Explanation:

Converting °C into °F;

°F = °C × 1.8 + 32

Converting °F into °C;

°C = °F - 32 ÷ 1,8

Converting °C into K;

K = °C + 273

Converting K into °C;

°C = K - 273

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3 years ago

Combustion of 6.90g of this compound produced 13.8g of CO2 and 5.64g of H2O. What is the empirical formula of the unknown compou

Alla [95]

The empirical formula for the unknown compound would be: C2H4O (2 molecules of Carbon, 4 molecules of Hydrogen, and 1 molecule of Oxygen)

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3 years ago

In a plant, roots absorb water and nutrients. Those materials are then transported to other parts of the plant. Which statements

ankoles [38]

I would say A and C. The circulatory system moves blood and nutrients similar to the plant moving water and nutrients. The endocrine system is responsible for hormones, glands and other such functions.

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3 years ago

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Explain acid rain and it effects to the environment​

Explain acid rain and it effects to the environment