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2 years ago

Which characteristic do all organisms as share

1 answer:

Natasha2012 [34]2 years ago

4 0

Answer: All living organisms share several key characteristics: sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.

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Iron and carbon monoxide are made by heating 5.53 kg of iron ore, Fe₂O₃, and carbon. What is the theoretical yield of iron in ki

vfiekz [6]

Answer:

Mass of Fe produced = 3.86785211069 ≈ 3.87 kg

Explanation:

From the question the chemical reaction can be written as follow :

Fe2O3 + C → Fe + CO

Balance the equation

Fe2O3 + 3C → 2Fe + 3CO

compute the molecular mass of Fe2O3 and atomic mass of Iron(Fe)

Molecular mass of Fe2O3 = 55.845(2) + 15.999(3) = 111.69 + 47.997 = 159.687 g

Atomic mass of iron = 55.845 g

From the balanced equation

159.687 g of Fe2O3 produces 2 × 55.845 = 111.69 g of Fe(iron)

Convert the 5.53 kg to gram

1 kg = 1000 g

5.53 kg = 5.53 × 1000 = 5530 g

since,

159.687 g of Fe2O3 produces 2 × 55.845 = 111.69 g of Iron(Fe)

5530 g of Fe2O3 will produce

cross multiply

Mass of Fe produced =5530 × 111.69/159.687

Mass of Fe produced = 617645.7

/159.687

Mass of Fe produced = 3867.85211069 g

convert to kg

1000 g = 1 kg

3867.85211069 = 3867.85211069/1000

Mass of Fe produced = 3.86785211069 ≈ 3.87 kg

3 0

3 years ago

Water _____.

Sergio039 [100]

Answer: is neither an acid nor a base

Explanation: Water is a universal solvent which means it can dissolve most of the substances in it.

Water has high thermal heat capacity , which means large heat is required to heat the water.

Water is not always pure as it gets contaminated by various pollutants present in the atmosphere such as gases, bacteria and suspended matter.

Water is an amphoteric substance which can act as both acid and base, thus can donate and acept [texH^+[/tex] ions.Thus it is neither an acid nor a base.

$HCl+H_2O\rightarrow H_3O^++Cl^-$

Here water is accepting a proton, thus it acts as base.

$NH_3+H_2O\rightarrow NH_4^++OH^-$

Here water is donating a proton, thus it acts as acid.

4 0

3 years ago

Will mark brainliest!!

olga2289 [7]

Answer:

I think its B im not sure

but i hope this helps

6 0

2 years ago

Which methods would be suitable for determining the concentration of an aqueous solution of KMnO4? I. Visible spectrophotometry

Elodia [21]

Answer:

Explanation:

Since the solution have an observable color, that means that it absorbs light in the visible region hence it can be determined by colorimetry. Secondly, KMnO4 is a reducing agent which can be titrated against an oxidizing agent and it's concentration accurately determined.

3 0

3 years ago

Photosynthesis takes place in the

guajiro [1.7K]

Answer:

Chloroplast

Explanation:

4 0

2 years ago