Help plz 50 pts to whoever helps me. A sample of C3H8 has 6.88×10^24 H atoms.
How many Carbon atoms does the sample contain?
What is the total mass of the sample?

There are main groups in the modern periodic table of elements

Calculate the number of moles of ethane in 100 grams

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)