1. What is the density of a rock that has a mass of 243 g and a volume of 7.9 cm3?

A student listed the characteristics of chemical and nuclear reactions. Chemical and Nuclear Reactions A - ->Total mass remains unchanged B - -> Small change in mass takes place Which of these statements best explains the identity of Reaction A? A.

What is the source for the ultraviolet radiation in earths atmosphere

Prompt does eating choclate causes pimples? List all materials needed as well as a sample size of test subjects/ however impresses me on a answer, I will mark them a brainlest

In which state of matter are the particles least able to move?

What are three differences between potassium 40 and carbon 14?

The changing of gas to liquid

A very simple assumption for the specific heat of a crystalline solid is that each vibrational mode of the solid acts independently and is fully excited and thus cv=3NAkB=24.9 kJ / (kmol⋅K). This is called the law of Dulong and Petit.

How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0

How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca (OH) 2?

The specific heat of aluminum is 0.897 J/g•°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of aluminum from 7°C to 29°C? A. Q = 0.75 g x 0.897 J/g•°C x 22°C B. Q = 0.75 g x 0.