CHEMISTRY MIDDLE SCHOOL

Use the graph to identify the number, letter, or word that completes each statement.• The solubility of Solute D _ as temperature increases.
• The solubility of Solute _ increases the most as temperature increases.
• The solubility of Solutes C and D is the same at °C.
• As the temperature increases from 0 to 100, the solubility only changes by about grams for Solute B.

Answers

Answer 1

Answer:

Answer:

Decreases

Explanation:

Answer 2

Answer:

Answer:

Decreases

Explanation:

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Carbon burns with oxygen to produce carbon dioxide gas. Which of these shows the correct chemical reaction?A) CO2 = C + O
B) C + O = CO2
C) C+ O -> CO2
D) C, O, CO2

Answers

The correct option is C.

When writing chemical equations, the chemical symbols of the element are usually used together with numbers to indicate the ratio of each element in the chemical compounds. The additional sign is usually used in between the reactants and the products. The arrow sign in used to show the direction in which the reaction is proceeding. In the correct option given above, the arrow sign is used to indicate that the reaction is moving in the forward direction.

Answer:

C) C+ O -> CO2

Explanation:

I took the test k12

How many days are in a solar year?

Answers

365 days.

Solar years is what we go by.

the answer is 365.242

A plasma that has particles that never collide frequently enough to exchange kinetic energy and never reach a temperature equal to the surroundings is categorized as a

Answers

Answer: Thermal plasma

Explanation:

Answer:

A on edg

Explanation:

When a warm air mass is caught between two cooler air masses and the thicker cold air masses move underneath the thinner warm air mass and push it upward is what type of weather front?

Answers

An occluded front forms when a warm air mass is caught between two cooler air masses. The warm air mass is cut ofl or occluded' from the ground. The occluded warm front may cause clouds and precipitation. A swirling center of low air pressure is called a cyclone.

When a warm air mass is caught between two cooler air masses and the thicker cold air masses move underneath the thinner warm air mass and push it upward. Occluded front symbol – The directions that the bumps face is the direction the front is moving.

Convert 11 degrees ° Fahrenheit to Celsius. (Round to the nearest tenth.)

Answers

Answer:

-12

Explanation:

11 degrees fahrenheit = -11.6667

Rounded it the nearest thenth is -12

Which solution has the greater concentration?A. 0.500 mole LiCl dissolved in 250 ml solution

B. 0.250 mole LiCl dissolved in 250 ml of solution

C. Both the same

Answers

The higher concentrated solution is 0.250 mole LiCl dissolved in 250 ml of solution

( B).0.250mole of LiCl diluted in 250ml solution

Explanation:

Procedure to find the intensity of the solution:

To find the intensity of the solution, we have to use the following formula

M1V1=M2V2

250mL of a 0.500 M aqueous solution of LiCl is diluted with water

$M1V1=(250) * (0.500)=125M$

250 ml of a 0.250M aqueous solution of LiCl is diluted with water

$M2V2=(250) * (0.250)=62.5M$

Thus the PH level of a solution increases from ascending order, Therefore the Solution with 62.5M is a higher concentration than that of the solution with 125M.

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