how many grams of oxygen, O2, are there in a 50.0-L gas cylinder at 21°C when the oxygen pressure is 15.7 atm?

The ph of carrots are 5.0 how it is classified a.acidic b.basic c.indicator d.neutral

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)

Identify two types of chemical bonding in the source of dietary potassium