An iron atom had an atomic number of 26 and an atomic mass 55.8 may. how many protons does an atom have

What mass contains 6.0 x 10^23 atoms?

Arrange the following according to increasing density; solid, liquid, and gas

What is the difference between the electron shells, the subshells, and the orbitals?

Before a bond breaks in a chemical reaction, what happens

Sodium reacts with chlorine gas to produce sodium chloride (table salt) in the following reaction: 2Na (s) + Cl2 (8) ► 2NaCl (s). a. How many grams of sodium are required to produce 178.5 g of salt? b. How many grams of Cl, are needed?

Which of the following is a part of a land based carbon cycle? coral reefs Crab shells Trees Whales

What is common of volcanoes that have the most violent eruptions? A. They feature magma with very high silica content. B. They are shield volcanoes. C. They feature magma with low viscosity. D. They have no magma, but have much lava.

Why is nitrogen fixation such an important step in the nitrogen cycle? Question 7 options: Bacteria convert the fixed nitrogen back into N2. Soil nitrogen is different. Decomposers need to use NH4+. Plants can't use nitrogen in the form of N2.

At 400 K, the rate of decomposition of a gaseous compound initially at a pressure of 12.6 kPa, was 9.71 Pa s-1 when 10.0 per cent had reacted and 7.67 Pa s-1 when 20.0 percent had reacted. Determine the order of the reaction.

What particles are used to form bonds