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3 years ago

Hello, I'm on a test can you guys help me answer this question? I'll mark brainliest to whoever has a good answer

Chemistry

1 answer:

iogann1982 [59]3 years ago

6 0

Answer:Some of the heat energy from the soup is transferred to the metal by the direct contact of the water molecules with the metal molecules of the spoon.

Explanation:

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Commercial agriculture can often lead to water-quality problems. In one to two sentences, explain how two of those problems occu

anygoal [31]

Commercial agriculture can often lead to water-quality problems in the following ways:

The washing of fertilizers and pesticides into water bodies from farms.

<h3>What is water quality?</h3>

Water quality refers to the state of a water body that encompasses it's physical, chemical and biological characteristics.

The water quality of a water body is crucial to its suitability for domestic or drinking purpose.

Commercial agriculture greatly affects water quality in the following ways:

The washing of fertilizers and pesticides into water bodies from farms.

Learn more about water quality at: brainly.com/question/20848502

#SPJ1

4 0

1 year ago

What is ionisation enthalpy? _ brúh +_-

inysia [295]

Answer:

The amount of energy required to remove an electron from an isolated gaseous atom in its gaseous state.

Explanation:

LOL, Same here bhai, am fed up now

Stay safe stay healthy and blessed.

Have a great day !

Thank you

5 0

2 years ago

Magnesium hydroxide (Mg(OH)2): g/mol

Eva8 [605]

To determine the molar mass, you need to get the atomic mass of the molecule. To do this, check the periodic table for the atomic mass or average atomic weight of each element.

Mg = 24.305 x 1 = 24.305 amu

O = 15.9994 x 2 =31.9988 amu

H = 1.0079 x 2 = 2.0158 amu

Then, add all the components to get the atomic mass of the molecule.

24.305 amu + 31.9988 amu + 2.0158 amu = 58.3196 amu

The atomic mass is just equivalent to its molar mass.

So, the molar mass of Magnesium hydroxide (Mg(OH)2) is 58.3196 g/mol.

8 0

3 years ago

Read 2 more answers

Ionic character of lih

adoni [48]

I believe LiH becomes HF

8 0

3 years ago

Which solution has the lowest freezing point?

Leokris [45]

Correct Answer: Option 3 i.e. 30 g of KI dissolved in 100 g of water.

Reason:
Depression in freezing point is a colligative property and it is directly proportional to molality of solution.

Molality of solution is mathematically expressed as,
Molality = $\frac{\text{Number of moles}}{\text{Weight of solvent (Kg)}}$ 

In case of option 1 and 2, molality of solution is 0.602 m. For option 3, molality of solution is 1.807 m, while in case of option 4, molality of solution is 1.205 m.

Thus, second solution (option 2) has highest concentration (in terms of molality). Hence, it will have lowest freezing point

3 0

3 years ago

Read 2 more answers