In a laboratory experiment, john uses a message to seperate soil particles from water. Which technique separation which technique of separation is he using

An atom of an element forms a 2 + ion. In which group on the Periodic Table could this element be located? (1) 1 (3) 13 (2) 2 (4) 17

The shininess of an element is also referred to as "metallic luster." which of the following elements is most likely to have a metallic luster? a. arsenic b. rhodium c. chlorine d. hydrogen

Why was 1990 an important year regarding air quality?

Analysis of a compound containing only C and Cl revealed that it contains 33.33 % C atoms by number and has a molar mass of 248.75 g/mol. What is the molecular formula of this compound?

What is another name for the quantum mechanical model

You see rainforests a is far as the eye can see It rains every day and the humidity is fiercel Where might you be? Polar climate Tropical climate Subtropical climate Temperate climate

2. A balloon is dunked into a tank of cold water. How will this affect the size of the balloon?

Which of the following correctly describes a compound?

If the [H+] of a solution is 1.0 x 10 to the power of - 2 mol/L the pH is: (pH = - log (H+] 1 12 -2 2 chemistry

Change 5.20 moles of c3h6o2to grams