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Troyanec [42]
3 years ago
14

Describe the different abiotic and biotic parts of an ecosystem. Identify and explain what organisms lie on each of the trophic

levels.
Chemistry
1 answer:
CaHeK987 [17]3 years ago
3 0
Abiotic are the non-living parts of an ecosystem such as the rocks or water. The abiotic parts of an ecosystem is anything that is alive. #TeamAlvaxic
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Which two seasons are best for growing plants due to the amount of sun received at those times? (Select two.)
cricket20 [7]

Answer:

spring and summer

Explanation:

5 0
3 years ago
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An atom of gold (Au) has 79 electrons. How many protons must it have if it has a net charge of 0?
Varvara68 [4.7K]
In order to balance out the Electrons, and give it a net charge of 0, you would need 79 Protons.
6 0
3 years ago
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Calculate the number of hydrogen atoms in a sample of hydrazine . Be sure your answer has a unit symbol if necessary, and round
gladu [14]

Answer:

atoms \ H= 9.767x10^{24}atoms

Explanation:

Hello!

In this case, considering that the mass of hydrazine is missing, we can assume it is 130.0 g (a problem found on ethernet). In such a way, since we need a mass-mole-atoms relationship by which we can compute moles of hydrazine given its molar mass (32.06 g/mol), then the moles of hydrogen considering one mole of hydrazine has four moles of hydrogen and one mole of hydrogen has 6.022x10²³ atoms (Avogadro's number); therefore, we proceed as shown below:

atoms \ H=130.0gN_2H_4*\frac{1molN_2H_4}{32.06gN_2H_4} *\frac{4molH}{1molN_2H_4} *\frac{6.022x10^{23}atoms}{1molH}\\\\atoms \ H= 9.767x10^{24}atoms

Notice 130.0 g has four significant figures, therefore the result is displayed with four as well.

Best regards!

7 0
3 years ago
Which of these is a physical property?
uysha [10]

Answer:

the boiling point of water is 100°C

Explanation:

7 0
4 years ago
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The first system of classification of organisms was developed by____.
zhuklara [117]
C. Linnaeus <span>The Swedish botanist Carl Linnaeus is regarded as the father of </span>taxonomy<span>, as he </span>developed<span> a </span>system<span> known as Linnaean </span>classification<span> for categorization of </span>organisms<span> and binomial nomenclature for naming </span>organisms<span>.</span>
4 0
4 years ago
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