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2 years ago

How is the water cycle realated to weather patterns and climate? Make sure to put 2 evidences

1 answer:

7 0

When there’s water in a department such as a lake, pound or/and ocean, the water tends to evaporated into the air and that’s how/when clouds are created. The same water from those locations are the same water that comes from the rain water, it’s a cycle that creates and takes water

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Which term describes this reaction?

lord [1]

Addition is the answer

7 0

2 years ago

Why is it important to mark the solvent front immediately

vodka [1.7K]

It is important to make sure the solvent is level and not at an angle so you do not get an angled solvent front.

8 0

2 years ago

Drain cleaner has a pH of about 14. How can it be classified, based on its pH? A. It is a very strong base. B. It is close to ne

Anton [14]

<h3>Answer:</h3>

A. It is a very strong base.

<h3>Explanation:</h3>

To answer the question we need to ask ourselves several questions

What is pH?

pH refers to the measure of alkalinity or acidity of a substance.

How is pH measured?

pH is measured by determining the concentration of Hydrogen ions (H⁺) in a given solution.
Then calculated by getting negative logarithm of hydrogen ions concentration.
That is, pH = -log[H⁺]

What does pH tell about a solution?

A solution with a pH below 7 is acidic while a solution with a pH above 7 is basic while that with a pH of 7 is neutral.
A pH of 1 to 3 represents a strong acid while a pH of 4 to 6 represents a weak acid.
Strong alkali or bases have a pH of 12 to 14 while weak alkali or bases have a pH of 8 to 11.
Therefore, a solution with a pH of 14 is a very strong base

8 0

2 years ago

A student leaves a 10.0 g ice cube in a sealed flask on the lab table. After some time, the ice melts. What is the mass of the l

tangare [24]

Answer:

a. 10.0 g

Explanation:

Hello.

In this case, for melting phase change, which is a physical change that allow the organized molecular arrangement of solid particles to spread and turn out into the spread molecular arrangement of liquids, we must take into account that the process is undergone by the entire mass then reaching the equilibrium (after some time).

Therefore as there ware 10.0 g of ice, then 10.0 g of liquid will remain after the melting process gets carried out, thus, answer is a. 10.0 g .

Best regards.

4 0

2 years ago

Please help!!!

UNO [17]

The name of the compound Pb(NO3)2 is Lead(II)Nitrate. The bond type can be determined by finding the group in which the elements in the compound are placed in the periodic table.

The compound Pb(NO3)2 is Lead(II)Nitrate. The bond type in Pb(NO3)2 is an ionic bond. The reaction between Lead(Pb) and Nitrogen with oxygen which are nonmetals is ionic in nature.

Naming a compound involves taking the charge of the valence electrons into consideration. The charge on the lead(Pb) is 2+ and the charge on NO3 is NO₃⁻. That is why the name of the compound is called Lead(II)Nitrate.

Therefore, we can conclude that the name of the compound Pb(NO3)2 is Lead(II)Nitrate. The bond type of the compound is ionic bonding and the convention for naming the compound requires taking the valence electrons of the elements participating in the compound into consideration.

Learn more about bond types here:

brainly.com/question/5201359?referrer=searchResults

5 0

2 years ago