Answer:
94.44
Explanation:
Volume is equal to Mass/Density so therefore, you do the mass which is 68.0 g/0.72 g/mL which is the density and get 94.44 mL because the g cancel each other out when it comes to the label!
There are six atoms of oxygen in that compound.
I think it’s b I’m not sure so sorry if incorrect. Take care.
Which Paper towel absorbs the most water?
I believe the paper towel with the thickest material will absorb the most water, because it can hold more water with the more paper.
You can try out 3 brands of paper towels, then you can put all of them (different times) in containers with water for a certain amount of time. Ex. 10 seconds, then take them out and squeeze out the water into a measuring cup to see how much the paper towel absorbed. Do that for all the brands and repeat it 3 times for your trails to get accurate results.
Catalysts are substances that speed up the rate of a chemical
reaction. It is important to know that reacting species must first possess a
minimum amount of energy equal to the activation energy for the reaction
to proceed. The catalyst works in a way that lowers the activation energy
required for the reaction to proceed. In this way, the reaction occurs at a
faster rate than without a catalyst. Catalysts do not react with
the chemical species in the reaction, thus, they are not consumed. However, over
time, catalysts tend to degrade and their function is also reduced. When this
happens, new catalysts replace the poisoned ones. Catalysts are widely used
today since they bring an increase in the production rate of commercial chemicals.