Determine the number of protons neutrons and electrons in an isotope that has 21 neutrons and a mass number of 40

What is the molecular shape of HCN? bent linear angular trigonal pyramidal

Is a minors surface transparent, translucent, or opaque and how do you know

List four possible clues to a chemical change

What is the pressure in atm exerted by 2.48 moles of a gas in a 250.0 mL container at 58 degrees celsius

Conductor in a sentence, something with science.

Which best describes the relationship between solute, solvent and solution? 1. A solution and solute combine to form a solvent 2. A solute is dissolved in a solvent to form a solution 3. A solvent is dissolved in a solute to form a solution 4.

A watermelon weighing 10 newtons is lifted 2 meters. How much work is done?

If an atom donates or accepts an electron, what is it considered

In this experiment, you will measure mass and volume of various sport balls, both regularly shaped ball and irregularly shaped.

An atom that has a negative four charge will have one of the following? A. 4 more protons than electrons B. An equal amount of protons and electrons C. 4 more electrons than protons D. 2 more neutrons than protons