An atom of the element iron has an atomic number of 26 and an atomic weight of 56. if it is neutral, how many protons, neutrons, and electrons does it have?

Which is an example of a mixture that can be separated using a filter and a funnel? A) Coca Cola B) salt water C) sand and water mixture

How are shadows formed?

How many grams of glucose are needed to prepare 400 ml of a 2.0% glucose solution?

Which of these SI units would measure the volume of a substance? square meter square kilogram cubic meter cubic kilogram

3. What is the volume of a salt crystal measuring 2.44 x 10-2 m by 1.4 x 10-3 m by 8.4 x 10-3 m? 2.9 x 10-5 m3 2.9 x 10-7 m3 2.9 x 10-5 m3 2.9 x 10-9 m3

Several steps are involved in the industrial production of sulfuric acid. One step involves the oxidation of sulfur dioxide gas to form sulfur trioxide gas. A catalyst is used to increase the rate of production of sulfur trioxide gas.

All energy waves other than the visible light spectrum cannot be seen. true or false

Describe two important functions for carbon dioxide in the atmosphere.

In the chemical reaction: 2 h 2 (g) o2 (g) → 2 h2o (g), with 8 grams of h 2 (2 grams/mole) and 16 grams of o2 (32 grams/mole) and the reaction goes to completion, what is the excess reactant and how much of that would remain

What is the volume of a gold nugget that weighs 2.20 kg? The density of gold is 19.28 g/cc.