Determine the number of significant figures in the following number. 5.2060 X 10-4

The molecule shown below can exists in two ways. Select the two isomers -

A solution contains an unknown metal ion. Upon adding  a solution of K2SO4, a white precipitate was formed. Identify the unknown metal . Use the table provided in the attachment Question-11.docx

After a reaction, you noticed the initial solution changed from colorless to blue. This observation is ……………………observation Choose (A) or (B) only

Click on the revolving nosepiece.

Click on the High Power Objective.

Click on the base.

Identify thenumber of significant figures in thefollowing number 6.022 X 1023

A car travels at a speed of 12.15 MPH. What is the speed of the car in m/s? (Use 1.60 km = 1 miles)

In the paper chromatography experiment, you marked the line on chromatography paper with a pencil, the reason for this is.