The density of aluminum is 2.70g/mL. What is the volume in mL of 74.5 grams of aluminum?

How do water particles behave when they are in their gaseous state? a. The molecules can move short distances and vibrate slightly. b. The molecules do not move. c. The molecules move freely and rapidly in all directions. d.

Is hydrogen bonding an actual type of bond?

When a beta particle is released from a nucleus of an atom: the number of electrons in the atom is increased the number of protons in the nucleus is increased the mass number of the nucleus decreases by one the mass number of the nucleus increases

Use the map to explain where the South American and African plates were located hundreds of thousands of years ago. Africa was more north and east and South America was more north and west of their current positions.

An atom's lewis dot structure has two dots, which element could it be, and why?

A wireless computer network uses radio waves to transmit signals. What device sends and receives radio signals in a wireless network? A) modem B) router C) digital translator D) digital interpreter

1. The gradual wearing away or breaking down of rocks by abrasion is a what type of weathering.

Molecules involved in a chemical reaction must meet to react. What is this concept called? Enthalpy Collision theory Enthropy Reaction rate

If a compound has a molar mass of 180 g/mol and its empirical formula is CH20, what is its molecular formula? CH20 C₂H4O2 C6H1206 C12H22011

Which element has six energy levels? A) rubidium (Rb) B) cesium (Cs) C) potassium (K) D) sodium (Na)