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3 years ago

.................. are microorganism used to improve soil fertility.plz ams it correct

Chemistry

2 answers:

slavikrds [6]3 years ago

5 0

Answer:

Some bacteria like rhizobium and blue green algae are able to fix nitrogen gas from the atmosphere to enrich the soil with nitrogen compounds and increase its fertility. The nitrogen-fixing bacteria and blue green algae are called biological nitrogen fixers.

tatiyna3 years ago

5 0

Answer:

Diazotrophic bacteria or Cyanobacteria

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Attempt 1

Vsevolod [243]

Answer:

12.01

Explanation:

(12.00*98.93% + 13*1.07%) /100% = 12.01

3 0

3 years ago

a chemist dissolves 0.564 moles of manganese (IV) oxide (MnO2) in water, and adds enough water to make 0.510 L of solution. Calc

ladessa [460]

Answer:

The molarity of the solution is 1.1 $\frac{moles}{liter}$

Explanation:

Molarity is a measure of the concentration of that substance that is defined as the number of moles of solute divided by the volume of the solution.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

$molarity=\frac{number of moles of solute}{volume}$

Molarity is expressed in units $\frac{moles}{liter}$

In this case

number of moles of solute= 0.564 moles
volume= 0.510 L

Replacing:

$molarity=\frac{0.564 moles}{0.510 L}$

Solving:

molarity= 1.1 $\frac{moles}{liter}$

The molarity of the solution is 1.1 $\frac{moles}{liter}$

4 0

3 years ago

A compound is 40% carbon, 6.7% hydrogen, and 53.3% oxygen. What is the empirical formula?

Ahat [919]

Answer:

O H C

Moles in 100g 3.33 6.65 3.33

Ratio 1.00 2.00 1.00

Possible empirical formula = $OH_{2}C$

6 0

3 years ago

Read 2 more answers

Which of the following will increase the rate of disolving?

Fantom [35]

Answer:

I have no idea bro

Explanation:

I feel you

3 0

3 years ago

A compound formed from titanium and oxygen has the formula TiO2. Which of the following is true about the ratio of number Ti and

Finger [1]

Answer:

Explanation:

There are some basic laws that guide the combination of elements chemically. These are the law of conservation of mass, law of definite proportion, law of multiple proportion and the law of reciprocal proportion.

For this question, the useful law to use is the law of definite proportion. Here, it is stated that no matter the method of preparation or source of preparation, the elements of a chemical compound are always present in a fixed ratio.

What this means that at any point in time, the compound titanium dioxide contains one atom of titanium and two atoms of oxygen. This means that both atoms are present at all times in a proportion of 1 to 2 .

4 0

3 years ago

.................. are microorganism used to improve soil fertility.plz ams it correct​

.................. are microorganism used to improve soil fertility.plz ams it correct