John Dalton believed which of the following about atoms? Atoms are real even though they're invisible.
The atom could be divided into smaller parts.
All atoms of a single substance are identical.
Atoms of different substances differ by weight.

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)

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work