Answer:
THE PRESSURE EXERTED BY THE GAS IS THEREFORE 2.88 atm.
Explanation:
Boyle's law states that at constant temperature, the volume of a given mass of gas is inversely proportional to the pressure of the gas.
Mathematically, P1 V1 = P2 V2
Write out the values of the variables given:
P1 = 2.4 atm
V1 = 1.8 L
V2 = 1.5 L
P2 = unknown
Re-arranging the variables by making P2 the subject of the equation, we have:
P2 = P1 V1 / V2
P2 = 2.4 * 1.8 / 1.5
P2 = 2.9=88 atm
Hence, the pressure exerted by the gas is therefore 2.88 atm
I think it’s C since the ice changes from solid to a liquid which is physical and then it reacts with calcium metal making the calcium hydroxide which is chemical change. And another sign of it being chemical was the release of gas.
Answer:
12.66 L
Explanation:
- Used combined gas law formula
- Change C to K
- Rearrange formula to fit your values
- If you would like further explanation or want to learn how to do these please let me know. Hope this helped!
I thinks it’s C don’t come for me if it’s wrong lol
Answer:
In an experiment the independent variable is special type of control which is control by the experimenter, and it effect the dependent variable.
Explanation:
In dependent variable:
The dependent variable is the variable which is controlled by the experimenter to check its effect on dependent variable.
Dependent variable:
It is variable which being measured in an experiment and which is directly depend upon independent variable.
The both variables are relate in term of cause and effect. The independent variable is changed by experimenter and its effect produce in dependent variable is then measure.
For example:
To measure how sleep of student effect the test score. The time for a sleep is given by experimenter it is independent variable which may exceed or decreased. It depend upon experimenter choice but the effect on score is dependent variable which depend upon the time of sleep.
