Answer:
The options a and b are correct
Explanation:
This options provided to the question are the answers to the question. But for clarification. When the fat melts, the change of state that occurs here is from solid to liquid (which is called melting) while the change of state that occurs when the water evaporated is from liquid to gas (which is called evaporation).
The teacher prepares 2.50 liters (l) of a salt solution for a class experiment, in this quantity 2.65 quartz are present.
<h3>What is conversion factor?</h3>
Conversion factor is a quantity which will be multiplied or divide with any other measurement for the conversion of that measurement.
Given that quantity of salt solution = 2.50 L
We know that, 1 L = 1.06 qt
Here conversion factor is 1.06 qt/L as it will be multiplied on given measurement to convert into quartz as:
2.50L = 2.50L × 1.06qt/L = 2.65qt
Hence required value is 2.65qt.
To know more about conversion factor, visit the below link:
brainly.com/question/97386
ok ther only one solution n2 is ÷ 2h×2 is ok but the problem is that the standard form of the square is not yet
Answer: An acid contains more hydrogen ions than hydroxide ions.
Explanation:
An acid is defined as the chemical compound which has a high concentration of hydrogen ions. They are considered as proton donors and they act as proton 
donors when they have high concentration of hydrogen ions.
A base is defined as a chemical substance which has high concentration of hydroxide ions. They are considered as proton acceptors and they act as proton acceptors when they have low concentration of hydrogen ions.
Hence, an acid is contains more hydrogen ions than hydroxide ions.
Answer: 10.5 hope this helps!
