For chao who is working with milk, he should adjust the temperature of the milk to have a faster reaction. for ezra who is working with rock, she must increase the surface area of the rock to increase the reaction rate, this can be done by grinding. and for mia who is working with carbon dioxide gas, she should adjust the pressure
Lowest is Hydrogen highest is <span>Beryllium
-HOPE THIS HELPED </span>
Given:
<span>M1 = 6.5 kg of books
</span><span>M2 = 1.5 kg of CDs
</span><span>M3 = 2.0 kg of DVDs
Required: percent by mass of each object
Solution:
First, we calculate the total mass.
M = 6.5 kg + 1.5 kg + 2.0 kg = 10 kg
Percent by mass is calculated by getting the ration of the mass of an object and the total mass multiplied by 100 to get the percent.
%M1 = 6.5 / 10 x 100 = 65%
%M2 = 1.5/10 x 100 = 15%
%M3 = 2.0/10 x 100 = 20%</span>
