An irregularly shaped stone was lowered into a graduated cylinder holding a volume of water equal to 20.0 ml the height of the water rose to 30.2 ml if the mads of the stone was 25.0g what was its density

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

What’s a special glass that most beakers are made of

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?