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2 years ago

What’s the answer to this?

Chemistry

1 answer:

MArishka [77]2 years ago

8 0

Benzene

Benzene has low density than the water itself of about 0.9 g/cm³

Low denisty object than the water usually <u>floats on the water</u>.

Another example: orange peel which floats on water has density of about 0.84 g/cm³

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Each day one astronaut exhales about 448 L of carbon dioxide. how many grams of LiOH is needed to remvoe this much carboon dioxi

Romashka [77]

Answer:

How to determine the mole of LiOH required to react with 20 moles of CO₂ per day

CO₂ + 2LiOH —> Li₂CO₃ + H₂O

From the balanced equation above,

1 mole of CO₂ required 2 moles of LiOH.

Therefore,

20 moles of CO₂ will require = 20 × 2 = 40 moles of LiOH

How to determine the mole of LiOH required by two astronauts for 3 days

Mole of LiOH for 1 person per day = 40 moles

Mole of LiOH for 2 persons per day = 2 × 40 = 80 moles

Mole of LiOH for 2 persons for 3 days = 80 × 3 = 240 moles

Explanation:

mark brainliest

7 0

2 years ago

What fixes nitrogen in the atmosphere

Blababa [14]

<h2>Nitrogen fixation </h2>

Explanation:

It is the process of converting free nitrogen into nitrogenous compounds .

Let us study about it :

In nature there are certain plants called as leguminous plants .These plants have nitrogen fixing bacteria called as rhizobium in their root nodules .

This bacteria can convert free atmospheric nitrogen into ammonia .

Then this ammonia with the help of bacteria nitrosomonas and nitrobacter gets converted into nitrites and nitrates .

Then these nitrites and nitrates with the help of bacteria like pseudomonas gets converted back into free nitrogen ,

This cycle helps in enriching the soil and to maintain nitrogen percent constant in atmosphere ,

The biogeochemical cycle : for nitrogen is attached below

5 0

3 years ago

Question 6 (0.04 points)

Bingel [31]

I think it’s C
a, sugar can’t conduct electricity
b, you don’t want to conduct electricity with something wet
salt can be a conductor of electricity

5 0

3 years ago

If 10.5 L of a gas at 0.98 atm has its pressure increased to 1.50 atm, what is the new volume?

serg [7]

Answer:

The new volume of this gas is 6.86 liters.

Assumption: the temperature of this gas stays the same, and this gas is ideal such that Boyle's Law applies.

Explanation:

By Boyle's Law, the volume of an ideal gas shall be inversely proportional to the pressure on it when temperature stays the same (as in an isothermal process.)

In other words,

$\displaystyle V \propto \frac{1}{P}$ ,

where

$V$ is the volume of the gas, and
$P$ is the pressure on the gas.

$P_1 \cdot V_1 = P_2 \cdot V_2$ .

$\displaystyle V_2 = \frac{P_1 \cdot V_1 }{P_2}$ .

Assume that this gas is ideal. Also assume that this increase in pressure is isothermal. Apply Boyle's Law to find the new volume of this gas:

$\displaystyle V_2 = \frac{P_1 \cdot V_1 }{P_2} = \rm \frac{0.98\;atm \times 10.5\; L}{1.50\; atm} = 6.86\; L$ .

8 0

4 years ago

In glycolysis, as in all the stages of cellular respiration, the transfer of electrons from electron donors to electron acceptor

Brums [2.3K]

Answer:

Oxidized,Reduced,reductant,oxidant, NAD+,NADH

Explanation:

1 when a compound donates electrons the compound becomes oxidized.such a compound is referred to as electron donor.

2 when a compound accept electron the compound becomes reduced such a compound often referred to as electron acceptor.

3 In glycolysis once the carbon containing compound that functions as electron donor is reductant.

4 once the electron donor in glycolysis gives up its electron ,it is oxidized to a compound called oxidant.

5 NAD+ is the compound that function as electron acceptor in glycolysis.

6 The reduced form of electron acceptor in glycolysis is NADH.

5 0

3 years ago