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ohaa [14]
3 years ago
8

Help me please, i would really appreciate it

Chemistry
2 answers:
elixir [45]3 years ago
7 0

Answer:

C. Physical Chemestry (Behaviour of Atoms)

____ [38]3 years ago
4 0

Answer:

analytic chemistry

Explanation:

Analytical chemistry uses tests to discover ingredients in a substance. A pool worker tests the water to learn how much chlorine it contains. A nutritionist analyzes food to learn about the nutrients in it. Biochemistry is the study of chemistry in the body.

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What is the correct electron configuration of the element with atomic number 20?
IgorLugansk [536]

Answer:

D is the correct answer

s orbital contain 2

p orbital contains 6

3 0
3 years ago
The catabolic process of converting carbohydrates to CO2 requires ________ of carbon. The catabolic process of converting carboh
mars1129 [50]

Answer:

The catabolic process of converting carbohydrates to CO2 requires<u> oxidation</u> of carbon.

Explanation:

There are multiple definitions of reduction-oxidation. There is one that explains it with respect to oxygen, the other with respect to hydrogen and another with respect to electrons. The relevant one here is the one that explains it in terms of hydrogen. Oxidation is the removal of hydrogen while reduction is the addition of hydrogen. During repiration, the carbon loses the hydrogens attached to it and is therefore oxidized. These hydrogens attach themselves to oxygen which means oxygen is reduced.

4 0
3 years ago
How many grams of i2 are needed to react with 30.1 g of n2h4?
Nina [5.8K]

The reaction is,

H2S + I2 --------------> 2 HI +S

Molar weight of H2S = 34 g per mol

Molar weight of HI =128 g per mol

Molar weight of I2 =254 g per mol

Moles of H2S in 49.2 g  = 49.2 /34 mol = 1.447 mol

So according to stoichiometry of the reaction, number of I2 mols needed                      

                                  = 1.447 mol

The mass of I2  needed = 1.447 mol x 254 g

8 0
3 years ago
Read 2 more answers
Which organelles is found in plant and animal cells and is involved in making cellular energy?
tia_tia [17]

Answer:

The plant and animal cells are eukaryotic and contain well developed cellular organelles. 

The cell membrane, cytoplasm, chromosomes, and mitochondria are the structures that are present in both the plant and the animal cells. 

The cell wall and chloroplast are present only in the plant cell. 

8 0
3 years ago
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Where might you find a temperature of 2 Kelvin?
anyanavicka [17]
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