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2 years ago

The Second Law of Thermodynamics states that: Select one:

Chemistry

1 answer:

lianna [129]2 years ago

8 0

Answer:

In the total entropy of an isolated system, the thermal energy per unit temperature that is unavailable for doing useful work can never decrease.

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Are bonds broken or formed, throughout each phase change present on a heating curve?

Blababa [14]

Answer:

During a phase change no chemical bonds are broken. Atoms are not rearranged because a phase change is a physical change rather then a chemical change. However, intermolecular forces are almost entirely removed from the liquid since the intermolecular forces are what cause the liquid to be a liquid.

Explanation:the nature of the intermolecular forces (IMF) will not change when the state changes from solid to liquid, however, the number of IMF changes.

5 0

2 years ago

How is the preodictable arranged by atomic mass, coloms , and rows

bearhunter [10]

answer:an arrangement of elements in columns, based on a set of properties that repeat from row to row

Explanation:

hope this helps love <3

5 0

3 years ago

Read 2 more answers

If you dissolve 50.0 grams of potassium bromide in 100.0g of water what is the mass percent of the resultant solution?

tatiyna

Mass percent= grams solute/ grams of solution x 100

Mass Percent= (50/ 150)x100= 33.3%

7 0

3 years ago

Matter G has a fixed shape and size. It is a:

agasfer [191]

Answer:

it is a solid

Explanation:

a solid is a fixed shape and size while liquids and gasses are not

6 0

3 years ago

Read 2 more answers

What is meant by the term chemical reaction

pantera1 [17]

Answer:

<h3> $\huge{ \underline{ \underline { \bold{ \sf{ \orange{See \: below}}}}}}$ </h3>

Explanation:

▪️ $\underline{ \bold{ \sf{ \blue{Chemical \: reaction}}}}$

⇒The composition , decomposition or displacement of molecules of matter during chemical change is called chemical reaction.

▪️ $\underline{ \bold{ \sf{ \purple{ \: Further \: more \: explanation}}}}$

Various conditions bring about these changes. The chemical reactions are represented by chemicalequation. The compounds or elements that take part in chemical reaction are called reactant. They are written at the left side of an arrow that represent a change while the compound or elements that formed after the chemical change are called product. They are written at the right side of the arrow.

▪️ $\underline{ \bold{ \sf{ \purple{For \: example}}}}$

When nitrogen reacts with hydrogen to form ammonia :

Nitrogen + Hydrogen ⇒ Ammonia

N₂ + 3H₂ ⇒ 2NH₃

Presentation of a chemical reaction in the form of equation is called chemical equation . Chemical equation may be word equations or formula equations.

Hope I helped!

Best regards!!

3 0

3 years ago