How do you know a chemical reaction has occurred in a candle?

What does the atomic mass describe? a. The mass of the protons in the atom b. The mass of the nucleus of the atom c. The mass of the neutrons in the atom d. The mass of the electrons in the atom

You put two open cans of soda on the table. You took one can from the refrigerator and the other from your car.

Which elements do not usually interact with other elements? Question 1 options: noble gases (inert gases) metalliods metals Halogens

Which of the following is an example of an experimental scientific investigation A noting the PH of a solution on a digital meter B recording the sound of glass breaking C placing test tubes in an ice bath for 15 min D noting the color of a solution

Energy transfer by convection is usually restricted to what type of substance? A. Solids only B. Liquids only C. Gases only D. Fluids only

How many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the following reaction? 4 KNO3 (s) → 2 K2O (s) + 2 N2 (g) + 5 O2 (g)

What was the ratio in the formula for iron (II) oxide

2C18H38 + 5502 → 36CO2 + 38H2O

What is the opposite of osmosis

Acid rain most often damages stone architecture by causing