How many moles are in 2.35 grams of phosphorus?

Which term describes the degree to which an element attracts electrons? which term describes the degree to which an element attracts electrons? electronegativity. polarity. oxidation. reduction?

Newton's law of universal gravitation, the law of conservation of mass, the law of superposition, and the laws of thermodynamics are all examples of scientific laws because A. they have been approved and accepted by congress. B.

2) Find the radius and diameter of a circle of area: a) 6.16 cm² 6) 13.86 cm²

True or false. Gas particles never touch each other.

Which of the following statements is true? (A) More heat is needed to lower the temperature of an object if it has more mass. (B) The amount of heat needed to raise the temperature of a substance does not depend on mass.

What are elements and how do they differ?

Write the structire of the salt that forms when diethylamine is mixed with hydrochloric acis

The heat of combustion of propane, C3H8, is 2220 kJ/mol. The specific heat of copper is 0.385 J/g°C. How many grams of propane must be burned to raise the temperature of a 10.0 kg block of copper from 25.0°C to 65.

Which is an example of Temporal Isolation? A. Flowers that bloom in different months. B. Birds that have different mating calls C. Fruits flies that mate in different locations. D. Squirrels that have different fur colors

A chemical reaction can start when enough activation energy is added to the reactants. Do you think the activation energy for chemical reactions in living things is high or low / Explain your answer