The scientists who developed atomic theory

While studying chemical and physical changes, students added salt to a glass of water. They stirred the salt until it dissolved and could no longer be seen. "That's a chemical change," Sarah stated. Do you agree? Explain.

The process by which complex organic compounds are decomposed by enzymes is called A. Fermentation B. Degradation C. Decaying

What is the difference between a diatomic molecue and a normal molecue

Write the empirical formula for at least four ionic compounds ca2+. v5+, f-, s2

You aren't sure if your pH meter needs to be calibrated, so you put it in a buffer solution that has a known pH of 7. You take four separate readings of the solution with the pH meter. The meter reports the pH as 5.5, 8.6, 6.3, and 9.4.

Is calcium pantothenate ionic or covalent?

One parsec equals 3.26 light years, where a light year is the distance light travels in one year. if the speed of light is 186000 mi/s, how many parsecs does it take for light to reach Mars from Earth, which is 60 million kilometers away? (1 km = 0.

In the following diagram the counter clockwise torque is?

A water wave travels 36 meters in 15 seconds. whatvis the speed of water?

Which type of wave cannot move without a medium in which to travel? Heat waves Light waves Sound waves Transverse waves