Why must a measurement include both a number and a unit?

Name an object that the magnet would repel

What does the word terrestial mean?

The element carbon, nitrogen, and oxygen are all part of the same?

Mixed sulfur (a yellow solid) with iron filings (a black solid) in a ceramic dish called a crucible. Then he separated them using a magnet. What kind of a change is this?

What must be added to break intermolecular forces formed between water molecules?

What is the ionic composition and osmolarity of "physiological saline" - the intravenous fluid drip you receive at a hospital?

Why do dipoles cancel out?

Match each chemical with the correct use. 1. x-ray soft tissue organs 2. reduce pain and fever 3. anesthetic 4. treat acne A. benzoyl peroxide B. nitrous oxide C. acetylsalicylic acid D. barium

What subatomic particles do the following symbols represent in the atomic diagrams

2. You have 2 m3 of a mineral ore sample. It has a mass of 1 * 104 kg. Calculate the density of the ore sample and express your results in g/cm3 with appropriate scientific notation.