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3 years ago

Help!! us own words, please!!

Chemistry

1 answer:

ad-work [718]3 years ago

3 0

Answer:

energy can neither be created nor be destroyed but it can only change from one form to another or transfer from one to another object this is the simplest way of understanding the law of conservation of energy. In simple line its the transfer of energy only.

so now the potential energy is the energy that is in stored form while kinetic energy is that energy which an object contain due to any particular motion.

like a ball is thrown in air so the energy through which it goes upward is kinetic energy and for downward movement of ball it need another energy which is potential energy(in the stored form) and by using this energy it goes downward.

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What is the energy change per gram of ice when an iceberg composed of pure water, cp = 2.06 j/(gk, is heated from -25°c to -15°c

bonufazy [111]

8 companies i looked it up on google and thats what it said hope its helpful

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3 years ago

Which of the following lists describes characteristics of a base? (3 points) Bitter taste, high pH, and caustic Bitter taste, lo

garik1379 [7]

Bitter taste, high pH, and caustic Bitter are the characteristics of base.

<h3>What are the characteristics of base?</h3>

Bases have bitter taste, soapy feel, turn red litmus paper blue. Bases are substances that contain metal oxides or hydroxides. Its pH is higher than 7 up to 14.

So we can conclude that bitter taste, high pH, and caustic Bitter are the characteristics of base.

Learn more about base here: brainly.com/question/3948796

8 0

2 years ago

Read 2 more answers

Which chemical is oxidized?<br><br> A) Mg<br> B) O2<br> C) MgO

kow [346]

C) MgO aka magnesium oxide

5 0

3 years ago

Care to help me guys please

earnstyle [38]

Answer:

A. Na₂SO₄ and HCl

C. Polar solutes are soluble in polar solvents but are insoluble in non-polar solvents Non-polar solutes are insoluble in polar solvents but are are soluble in non-polar solvents

Ionic solutes are soluble in polar solvents but are insoluble in non-polar solvents.

Like dissolves like simply means that molecules of substances having similar chemical properties dissolve in each other

Explanation:

A. Ionic substances like Na₂SO₄ are composed of charged particles called ions. These ions are either positively charged or negatively charged, therefore, they are attracted to substances of opposite charges. Also, polar molecules like HCl contains two oppositely charged ends. A polar solvent consists of molecules with two oppositely charged ends, therefore, ionic substances as well polar substances dissolve in them according to the concept of like dissolves like.

Gasoline being non-polar will only dissolve in like substances, polar solvents.

C. Polar solutes are soluble in polar solvents but are insoluble in non-polar solvents Non-polar solutes are insoluble in polar solvents but are are soluble in non-polar solvents

Ionic solutes are soluble in polar solvents but are insoluble in non-polar solvents.

The statement "Like dissolves like" simply means that molecules of substances having similar chemical properties dissolve in each other. For example gasoline, a non-polar substance will dissolve only in a non-polar solvent like kerosene. Also, HCl, a polar molecule will dissolve in a polar solvent like water.

7 0

3 years ago

a solution of common salt and a sample of muddy water are placed separately in two breakers. which one is hetrogeneous and which

arsen [322]

Answer:

a solution of salt is homogeneous mixture

a sulution of muddy water is heterogeneous mixture

Explanation:

reason for salt and water as homogeneous mixture because water dissolves salt easily unlikely heterogeneous mixture in which water cannot dissolve mud in it

8 0

3 years ago