Answer:
mNaCl = mNa + mCl
mNa = 20g
mCl = mCl2/2 = 30/2 = 15g
mNaCl= 20+15 = 35g
Answer:
A table was attached to the question
Explanation:
The step by step calculation is as shown
An independent variable is something that will occur without something else happening. An example of an independent variable is when your income depends on the number of sales. In this situation, your income depends on how many sales you make, so therefore, the number of sales you make is the independent variable.
Answer is B
A mixture means two compounds mixed together but not atomically. For example, sand and water solution. A water with sand mixed inside is a mixture because the sand can be separated by physical means.
Water is H2O. This means it is a compound, because hydrogen and oxygen is bonded together atomically. Hydrogen however is an element, because you can't seperate it anymore (You could seperate it in the sense of protons and neutrons, but the definition of element is something you can see on the periodic table)
Compound means more than one element bonded together.
The sample must be a compound because it couldn't be seperated by physical means but can be seperated by chemical means into three pure substances (synonym of element)
Answer:
V= 9.45L
Explanation:
P=3.75atm, V=?, n= 1.5, R= 0.082, T= 15+ 273= 288K
Applying
PV= nRT
Substitute and Simplify
3.75*V= 1.5*0.082*288
V= 9.45L