Which of the following steps can be used to identify an acid-base reaction? (5 points) Check whether the products are an acid and a base. Check whether the reactants are an acid and a base. Check if the ions of two compounds exchange places. Check if one element replaces another element in a compound.

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 are the two largest greenhouse gases

Is this correct if not can u correct me