All categories

3 years ago

9. Convert 57 joules to Calories.

Chemistry

1 answer:

olchik [2.2K]3 years ago

7 0

Answer:

13.6233

Explanation:

calculate the joules by dividing the energy value by 4.184

You might be interested in

Is sand a element, compound or a mixture?

Ainat [17]

Answer:s its a mixture

Explanation:

3 0

3 years ago

Read 2 more answers

Explain which has a greater impact on the kinetic energy of an object - the

AlladinOne [14]

Answer:

it is the objects mass, I learned this last semester

6 0

3 years ago

Read 2 more answers

The process that occurs when physical forces break rock into smaller pieces without changing the rock's chemical composition is

sp2606 [1]

Answer:

A) Mechanical Weathering

Pls Mark As Brainliest!!!!!!!!!!!!!

Explanation:

Mechanical weathering breaks rocks into smaller pieces without changing their composition. Ice wedging and abrasion are two important processes of mechanical weathering. Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface

4 0

3 years ago

Which of these is not a physical property of matter?

Zepler [3.9K]

Its D. combustibillaty

A. density is how hard or densely the substances molecules are together
B.boiling point is the point at which bonds that hold molecules are broken and so the substances boils
C. malleability is how easily a substance can be stretched until it breaks
D. is a chemical property of how much chemical energy is stored in a substance for it to combust

hope that helps
<span />

8 0

3 years ago

The following equilibrium is formed when copper and bromide ions are placed in a solution:

JulsSmile [24]

Answer:

1. Reaction will shift rightwards towards the products.

2. It will turn green.

3. The solution will be cooler..

B) It will turn green.

Explanation:

Hello,

In this case, for the stated equilibrium:

$heat + Cu(H_2O)_6 ^{+2} (blue) + 4Br^- \rightleftharpoons 6H_2O + CuBr_4^{-2} (green)$

In such a way, by thinking out the Le Chatelier's principle, we can answer to each question:

1. If potassium bromide, which adds bromide ions, is added more reactant is being added to the solution, therefore, the reaction will shift rightwards towards the products.

2. The formation of the green complex is favored, therefore, it will turn green.

3. The solution will be cooler as heat is converted into "cold" in order to reestablish equilibrium.

B) In this case, as the heat is a reactant, if more heat is added, more products will be formed, which implies that it will turn green.

Regards.

3 0

3 years ago