Answer:
<em>a) The variable that we will change will be the different liquids.</em>
<em>b) The variable which will be kept same will be the ramp angle, the time for measuring in each experiment and the heat. </em>
Explanation:
In a scientific experiment, an independent variable is a variable which is changed by the researcher so that its effect on the dependent variable can be studied.
A dependent variable is a variable which is under study and might be influenced by changes in the independent variable.
It is best to study the effect of a single independent variable at a time so that we can easily infer the results.
<u><em>In the scenario discussed in the question, we would change the different liquids so that the time taken by each liquid to flow down the ramp can be studied.</em></u>
<u><em>We will keep the ramp angle, the time (of each experiment) and heat for each of the experiments the same so that a just conclusion can be drawn.</em></u>
Given what we know, we can confirm that as an ionic compound grows more complex, its melting point will increase.
<h3>What is an Ionic compound?</h3>
- An ionic compound is one in which atoms of elements share electrons between them to form compounds.
- These shared electrons generate powerful electrostatic forces that we refer to as ionic bonds.
- Electrostatic forces cause an increase in the melting point of a compound.
- As a compound grows more complex and adds more elements to its composition, it will gain new electrostatic forces, and thus<em><u> increase its melting point.</u></em>
Therefore, as an ionic compound grows more complex, its melting point will increase due to the increasing number of strong electrostatic forces present in the compound.
To learn more about ionic compounds visit:
brainly.com/question/9167977?referrer=searchResults
Answer:
punctuation, and if it makes sense
Answer : The correct option is, (E) 7.8 atm
Explanation :
The partial pressure of 
= 8.00 atm
The partial pressure of 
= 5.00 atm
= 0.0025
The balanced equilibrium reaction is,
Initial pressure 8.00 5.00 0
At eqm. (8.00-x) (5.00-x) 2x
The expression of equilibrium constant for the reaction will be:
Now put all the values in this expression, we get :
By solving the terms, we get:
The equilibrium partial pressure of = (8.00 - x) = (8.00 - 0.15) = 7.8 atm
Therefore, the equilibrium partial pressure of is 7.8 atm.
