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3 years ago

What is a tropical rainforests

Chemistry

2 answers:

exis [7]3 years ago

7 0

Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season – all months have an average precipitation of at least 60 mm – and may also be referred to as lowland equatorial evergreen rainforest.

juin [17]3 years ago

6 0

The answer would be the first one.

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Most nonmetals form covalent or ionic bonds, depending on the element with which they react. Carbon predominantly forms covalent

valentinak56 [21]

A)Calcium-This because calcium has two valence electrons hence it is a metal therefore it will form an ionic bond with carbon.

3 0

3 years ago

How do scientists answer questions?

grin007 [14]

It’s A.
They do make observations and perform experiments.
They make multiple experiments and for the experiments, they record the data collected.

6 0

2 years ago

The presence of a large population of _____________ indicates water depleted of oxygen and a high level of organic pollution.

blondinia [14]

The presence of a large population of sludgeworms indicates water depleted of oxygen and a high level of organic pollution.

The sludgeworms Tubifex is harvested and sold as tropical fish food since it is common near sewer outlets and serves as a sign of water or organic pollution. Polychaetes are crucial in rearranging the silt on the ocean floor.

Organic contamination happens when too much organic material, such sewage or manure, gets into the water.

There will be more decomposers and sludgeworms in a pond as the organic content accumulates. These decomposers and sludgeworms develop quickly and consume a lot of oxygen as they do so.

Hence, Sludgeworms are a sign of an abundance of oxygen-depleted water and significant levels of organic pollutants.

Learn more about Water pollution here brainly.com/question/1235358

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6 0

2 years ago

PLS HELP - How many moles are present in 3.01 x 1023 atoms of N2 (nitrogen gas) ?

Neporo4naja [7]

Answer:

<h2>0.5 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{3.01 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{3.01}{6.02} = 0.5 \\$

We have the final answer as

<h3>0.5 moles </h3>

Hope this helps you

6 0

3 years ago

Classify each statement as true or false. Drag the appropriate items to their respective bins. View Available Hint(s) Reset Help

Savatey [412]

Explanation:

1) The valence electrons of group 4A elements are in the 5s subshell.

The given statement is false .

The valence electrons of group 4A elements are in the ns and np subshell .Where n is equal to 1 to 7.

2) Period 3 elements have an inner electron configuration of [Ar].

The given statement is false .

The noble gas which comes before third period is neon.Period 3 elements have an inner electron configuration of [Ne].

3)The highest principal quantum number of period 4 elements is 4.