A certain element forms an ion with 54 electrons and a charge of + 2. identify the element.

Cocaine causes higher sensitive to light causing a driver to see?

Under the same conditions of pressure and temperature, how are the particles of a solid different from the particles of a liquid?

What is half reaction?

To how much water should 250 mL of 12 M hydrochloric acid be added to produce a 4.0 M solution?

A mineral must be inorganic? True Or False ...

Why does acids that has been accidentally spilled on a book cause the colour of the book cover and the ink to change?

How many moles of H2O will be required to make 19.2 moles of O2

Calculate the energy required to heat 406.0mg of cyclohexane from 33.5°C to 38.9°C. Assume the specific heat capacity of cyclohexane under these conditions is 1.85·J·g^-1K^-1. Be sure your answer has the correct number of significant digits.

Is nitrogen flammable? If so i want to build a patao gun using it as my fuel

What's the chemical formula for iron (ii) nitride