How do I balance a chemical reaction like one of these NaBr + Ca (OH) 2 ➡️ CaBr2 + NaOH

The light produced from electrons comes from them doing what? A. falling back to a its original lower state after being excited by fire B. remaining in its lowest state even after being excited. by fire C.

Eugenol is to be isolated using steam distillation. At 100 oC and 744.67 torr calculate the vapor pressure of pure eugenol at 100oC when 16.48% of the distillate collected is eugenol. The vapor pressure of water at 100oC is 760 torr.

What is the easiest way to memorize all the elements and their properties?

Find the Molarity of a solution containing 2.5 moles of solute in 15000 milliliters.

A mixture of sand (SiO2), sodium chloride (NaCl), and iron (Fe) filings had a mass of 30.126 g. After analysis this mixture was found to contain 15.976 g of sand and 3.455 g of iron. What is the mass percent (%) of sodium chloride in the sample?

A student dissolves 20g of potassium chloride in 100cm³ of water in a beaker. What is the concentration of the solution in g/dm³?

List of solid mixtures in a classroom

Which quantum number describes the energy level of an electron? Spin quantum number Principal quantum number Magnetic quantum number Angular momentum quantum number

Which of the following best explains why J. J Thompson's Plum Pudding model had to be revised?

What best describes the flow of electricity