another Visarjan contains 11 electrons this 11 electrons are arranged in a sodium atom draw a diagram to show how

What’s the scientific notation for the number 6,840,000,000

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?

Once similarity and one difference between a mixture of elements and a mixture of compounds