Aluminum is a metallic element with 3 valence

electrons. What is its oxidation number?

What is the best description of weathering? building up earth's surface through deposition processes that make it difficult to determine the age of rocks breakdown of rocks through mechanical or chemical processes when rock layers form horizontally

How does a refracting telescope work? A. It uses a concave lens, a convex lens, and a concave mirror to gather and focus light. B. It uses a concave lens and a convex lens to gather and focus light. C.

Which of the following pH levels would be the most acidic? pH 2 pH 5 pH 8 pH 13

How is the nuclear structure of an atom similar to the nonnuclear structure?

In a DNA molecule, if 38% of the molecular bases are C (cytosine), what percent of the bases are T (thymine) ?

A sample of the sugar d-ribose (C5H10O5) of mass 0.727 g was placed in a calorimeter and then ignited in the presence of excess oxygen. The temperature rose by 0.910 K. In a separate experiment in the same calorimeter, the combustion of 0.

the volume of an ideal gas in a container is 2.0 L what will be the volume of the gas if the pressure on the container is doubled while the temperature is reduced from 400 K to 200 K

Which of the Following Will result in increasing temperature of s gas

Which volume measurement is expressed in four significant figures? A) 5.50 ml B) 550. ml C) 5,500 ml D) 5,500. ml

What is the salt that is produced when calcium hydroxide (Ca (OH) 2) reacts with sulfuric acid (H2SO4) ?