How to find protons and neutrons and electrons of element khan academy?

How many grams of alcl3 are produced when 3 grams of al (oh) 3 react completely with excess hcl?

1. (Blank) are the basic units of structure and function in living things. 2. A (Blank) is a group of similar cells that perform a specific function in an organism. 3. (Blank) are nerve cells that carry response information to muscles and organs. 4.

A scuba driver with a local sheriffs office has been assigned the task of retrieving a sunken car in the Red river. The car is believed to have human remains inside.

The ability or power to transmit heat, electricity, or sound (hint: 12 letter)

11. What is the mass number of an element if its atom contains 10 protons, 10 electron, and 12 neutrons? A 12 C20 D. 32

How many grams of silver chloride (AgCl) can be produced if you start with 12.5 grams of barium chloride (BaCl2) ? 2AgNO3 + BaCl2 = = > 2AgCl + Ba (NO3) 2

Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese (IV) oxide. 4 HCl (aq) + MnO 2 (s) ⟶ MnCl 2 (aq) + 2 H 2 O (l) + Cl 2 (g) 4HCl (aq) + MnO2 (s) ⟶MnCl2 (aq) + 2H2O (l) + Cl2 (g) A sample of 43.

Calculate how many moles of glycine are in a 160.0-g sample of glycine. express your answer using four significant figures.

Which of the following words correctly describes CO2? Select all that apply A. Its a substance b its a compound c its a element D its a mixture

A certain reaction has an activation energy of 51.64 kj/mol. At what temperature Kelvin will the reaction be 5.50 times faster than it did at 343K?