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

What is the angle between the carbon-sulfur bond and the carbon-nitrogen bond in the thiocyanate (SCN-) ion?

2. How much heat is released when 432g of water cools down from 710C to 180C?

Which kind of bond is formed when two atoms share electrons to form a molecule

Element X reacts with chlorine to form an ionic compound that has a formula of XCl2. To which group could element X belong? (1) Group 1 (2) Group 2 (3) Group 13 (4) Group 15

What is considered to be included in the study of Chemistry?

Carbon monoxide reacts with oxygen to form carbon dioxide. 2 CO (g) + O2 (g) → 2C02 (8) In a 1.00 L flask, 3.40 atm of CO reacts with 2.60 atm of O2. Assuming that the temperature remains constant, what is the final pressure in the flask? 4.30 atm 2.

The nerves that Branch out from the spinal cord and connect to the body

The term southern oscillation most nearly refers to

Which kelvin temperature is equivalent to 20°C

When a piece of magnesium metal is added to hydrochloric acid, what gas is produced?