1. Position of Hydrogen
<span>2. Position of Isotopes</span>
Answer:
Amount of water
The thermometer
Explanation
In an experiment, there is always a dependent variable and an independent variable. The independent variable is manipulated and its effect on the dependent variable is observed.
The control is that factor in the experiment that must remain constant so that effect of the independent variable on the dependent variable can be observed.
In this case, the independent variable is the amount of sodium chloride while the dependent variable is the temperature at which the solution boils.
The controls must be the amount of water which must be held constant and the same thermometer used to measure the temperature so that the effect of the amount of sodium chloride on the temperature of the solution can be studied.
Answer:
uhhhh rephrase that please lol
The answer is D hope you get 100%
have a nice day
Answer:
C Force of gravity acting on an object
Explanation:
Hope that helps
have A good day
can I i have brain pls