What is the S. I unit of pressure?

How many negative charges are in the atom

The lion's scientific name is Panthera leo. The leopard's scientific name is Panthera pardus. The tiger's is Panthera tigris. Which statement is true?

Nitric acid + mg (no3) 35.0 ml of 0.255 m nitric acid is added to 45.0 ml of 0.328 m mg (no3) 2. what is the concentration of nitrate ion in the final solution? a. 0.481 m b. 0.296 m c. 0.854 m d. 1.10 m e. 0.0295 m

Is taking a glass of water and freezing it by placing in the freezer chemical change?

Which particles are located in the nucleus of the atom? neutron and electron neutron and proton proton and electron only neutron

How do the chemical properties of oxides change from left to right across a period? From top to bottom within a particular group?

A mixture is different from a compound because each substance in a mixture a. retains its own properties. c. forms an ion. b. changes its electric charge. d. changes from a solid to a liquid.

Gamma ray Ultra- violet Infrared Radio H. X-rays Visible Microwave Which electromagnetic wave transfers the most energy? infrared microwaves radio waves X-rays Frequency (Hz) 1015 1013 1021 1019 107 10" 109 107 Intro Done

If a 9.983 g sample of calcium sulfate dihyrate was heated in a crucible under the correct conditions, how many grams of water should be lost?

What group of elements has the most stable arrangement in their outer energy level?