How many significant figures are in the value 2020.0

In a titration, 10.0 ml of 0.0750 M HCl (aq) is exactly neutralized by 30.0 ml of KOH (aq) of unknown concentration. What is the concentration of the KOH (aq) solution?

Aluminum sulfide reacts with water to form aluminum hydroxide and hydrogen sulfide. If 10.6 grams of aluminum hydroxide is produced, how many grams of water were reacted?

Which element has a lower first ionization energy than aluminum (AI)

Define the term ph of a solution

Magnetism, reactivity, and fluorescence are three special properties used to identify minerals. true or false

To what chemical reaction class does this reaction belong? 2 mg (s) + o2 (g) 2 mgo (s)

Which best illustrates how particle arrangement changes when solids change into liquids

Express in scientific notation (6.0x10^4) (3.1x10^-1)

How do you measure the mass of a liquid?

Given the following information, calculate the mass for B-11. B-10 has a natural abundance of 19.9 percent, while B-11 has a natural abundance of 80.1 percent. The mass of B-10 is 10.013 amu.