Classify the following as an element, compound, homogeneous mixture, or heterogeneous mixture:

Hydrogen (H2)

A. Element
B. Compound
C. Homogenous mixture
D. Heterogenous mixture

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

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)

The graph indicates the running route for tobias. which best describes his run? from time 0 to 6, he went fast and then slowed down. from time 6 to 10, he was at his slowest. from time 12 to 14, he went very slow. from time 14 to 18, he went toward the starting point.