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tiny-mole [99]
3 years ago
12

Which of the following is NOT a heterogenous mixture:

Chemistry
1 answer:
ANTONII [103]3 years ago
4 0

Answer:Vinegar

Explanation:

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What is an advantage of using natural gas rather than a coal burning power plant?
Olenka [21]

Answer:

I hope it helps u

Explanation:

The advantages of using natural gas rather than coal are the following,

  • Natural gas is present in large amount than coal.
  • Natural gas is less costly than other fossil fuel sources of energy.
  • It increases security by decreasing dependence.
  • Natural gas is more environmentally friendly.
  • Natural gas is much safer to store.
  • It is reliable.
  • Natural gas is a fossil fuel, though the global warming emissions from its combustion are much lower than those from coal or oil.
  • Natural gas emits 50 to 60 percent less carbon dioxide (CO2) when combusted in a new, efficient natural gas-power plant compared with emissions from a typical new coal plant.

6 0
3 years ago
A 7.2 L balloon at 2 atm of pressure has its pressure reduced to 0.5 atm. What is the new size of the balloon, in liters?
alexgriva [62]

Explanation:

using Boyles law: which shows the relationship between pressure and volume, when temperature Is kept constant

P1V1 = P2V2

2 x 7.2 = 0.5 x V2

14.4 = 0.5 x V2

V2 = 14.4/0.5 = 28.8 L

Hence the new size of the balloon in litres is 28.8

8 0
3 years ago
Which is a statement of cell theory? All cells are made up of living molecules. All plants are made of cells. All animals are ma
erastovalidia [21]

Answer:

all cells are produced from other preexisting cells through cell division

4 0
3 years ago
what is the percent by mass of a solution that contains 30 grams of potassium nitrite in 0.5 kilograms of water?
Makovka662 [10]

Answer:

5.66 %.

Explanation:

<em>mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.</em>

<em />

<em>mass % = (mass of solute/mass of solution) x 100.</em>

<em></em>

mass of potassium nitrite = 30.0 g,

mass of the solution = mass of water + mass of potassium nitrite = 500.0 g + 30.0 g = 530.0 g.

<em>∴ mass % = (mass of solute/mass of solution) x 100</em> = (30.0 g/530.0 g) x 100 = <em>5.66 %.</em>

5 0
3 years ago
A when sulfuric acid is added to sirie, hydrager
irga5000 [103]

Sulfuric acid is prepared industrially by means of the response of water with sulfur trioxide which in turn is made by way of a chemical combination of sulfur dioxide and oxygen both by way of the touch system or the chamber system.

                         H2SO4 (l) H2O (g) + SO3 (g).

The reaction is highly exothermic as an enormous amount of heat is liberated.

The usual approach is to dilute the sulfur trioxide in sulphuric acid. This produces oleum. SO3 (g) + H2SO4 → H2S2O7 (1) Oleum can be in addition diluted in water to acquire concentrated sulphuric acid.

An acid catalyst is added to protonate the carbonyl carbon. How does this catalyze the response, robust acid catalysts catalyze the hydrolysis and transesterification of esters which enables the mechanism with a view to boom the electrophilicity of the carbonyl carbon to assist protonate the carbonyl oxygen.

Learn more about sulfuric acid here:-brainly.com/question/11857977

#SPJ9

8 0
2 years ago
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