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Lilit [14]
2 years ago
6

Chris noticed a high-pressure system in the weather forecast for Monday

Chemistry
1 answer:
Alchen [17]2 years ago
5 0

Answer:

A. Clear and Sunny

Explanation:

The answer would be A. Clear and Sunny. A high pressure system occurs where the air mass above the Earth is denser than in surrounding areas, and therefore exerts a higher force or pressure. They usually happen with li9ght winds. Using process of elimination, it could not be D. Warm and Stormy, C. Cloudy and Rainy, or B. Cold and Stormy because all have wet climates.

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Describe one advantage and one disadvantage of replacing standard bulbs with led lighting
Leno4ka [110]
Advantages

less wasted energy

Reduces fossilisation

Disadvantages

- Expensive

- doesn't look nice ( apparently)



7 0
3 years ago
Write about the characteristics of carbon compounds:
mart [117]

The characteristics of carbon compounds are they exist with different structures in which the atoms are arranged differently and it forms more compounds than other elements combined.

Explanation:

The carbon atom has atomic number 6 which represents the number of electrons. It is represented by C and it is a non- metal. It has 6 protons, 6 neutrons, and 6 electrons. They are smaller in size so that it can fit in to larger molecules.

It is the only element that can form different compounds because each carbon atoms can form four chemical bonds to other atoms.

The structure of carbon atom is represented with its atomic number 6. The first two electrons are present in inner shell and the remaining four are present in the second shell.

The carbon combines with oxygen, hydrogen, and nitrogen to form many molecules for cellular function. Carbon and hydrogen combine to form hydrocarbon chains and rings.

For example the structural formula for Methane (CH4)

     

8 0
4 years ago
Can anyone help need answer asap
bulgar [2K]

Answer:

Rises, sinks

the correct answer is B

4 0
3 years ago
Read 2 more answers
What is the formula unit for a compound made from Pb4+ and oxygen?
dem82 [27]

Answer : The formula unit of compound will be, PbO_2

Explanation :

As we know that one atom of oxygen contains (2-) charge and one atom of lead contains (4+) charge. So, to balance the of charges of lead, the 2 oxygen atoms combine with the 1 lead atom. Thus, the compound formed will be, PbO_2.

That means, when Pb^{4+} combine with oxygen that is, O^{2-}, it gives PbO_2 by the criss-cross method.

Criss cross method : It is a method of determining the chemical formula.

The formula unit is a shown below.

7 0
3 years ago
Does this look right if not pls help no links​
Digiron [165]

Answer:

I would love to help but I'm du.mb... but it says "pound" lm.ao

8 0
3 years ago
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