Which of the following elements is a metalloid?

A. gold

B. sulfur

C. silicon

D. aluminum

How many seconds are there in 23 days?

A chemist carefully measures the amount of heat needed to raise the temperature of

On the lab bench there are four solutions; one is yellow and the other three are colorless. Which of the following four transition metal compounds is likely the yellow solution?

Based on formal charges, draw the most preferred Lewis structure for the chlorate ion, ClO3-. To add lone pairs, click the button before clicking on the molecule. To add bonds connect atoms with a line.

Which is a spectator ion in the reaction between NaOH (aq) and H2SO4 (aq) ?

You would know you were in the troposphere If? It were raining on you You were floating in space You were flying in a high altitude jet You were in the ozone later

A burning match is an example of a chemical change phase change nuclear change physical change

The table below shows the shapes of two samples, C and D, when placed in three containers of different shapes.

How many grams of KCl are produced when 60 grams of K are reacted?

Whats a solution! people