How could you tell if a sample of matter is an element

What is an isotope? How does one isotope differ from another isotope

W Which are forms of kinetic energy? A light, sound, chemical B electrical, chemical, sound C sound, potential, thermal D light, thermal, sound

Describe the benefits and the drawback of natural gas.

In order to recreate the process of energy production that takes place in the sun, scientists use what?

In chemistry, the pH of a solution is a measure of the acidity or alkalinity of a solution. Water has a pH of 7 and, in general, acids have a pH less than 7 and alkaline solutions have a pH greater than 7.

What is the mass of a box of nails

In a phase change of water between the liquid and the gas phases, 770.1 kJ of energy was released by the system. What was the product, and how much of it was formed in the phase change? (dа ta: H₂O (l) → H₂O (g) ΔH = 44.01 kJ/mol.) A.

Explain the problem surrounding the ammonia-making process in terms of chemical equilibrium. Chemical equation for producing ammonia: N2 + 3H2 ⇌ 2NH3 + energy

How many Joules are equivalent to 75 Calories?

How do you balance nuclear equations?