Is luster a physical or chemical property

Of element x has 22 protons, how many electrons does it have

18=5x+2y-8 How do you solve

This formula equation is unbalanced. P4 (s) + Cl2 (g) PCl3 (l) Which coefficient should be placed in front of PCl3 to balance this equation? 124 6

What is the word for squezing a group of particles in a wave?

What are the reactants in photosynthesis?

Testing a hypothesis is called a

When molten rock undergoes crystallization above ground, what type of rock results? a. intrusive igneous rock b. extrusive igneous rock c. metamorphic rock d. sedimentary rock

A 150ml sample of hydrochloric acid completely reacted with 60.0mL of a 0.100 M NaOH solution. What was the original concentration of the HCl solution

Rearrange in to a quadratic 5.333 = (0.6 + 2p) ² / (0.135 - p)

How hot would a 2.3 L balloon have to get to expand to a volume of 3.0 L? Assume the initial temperature of the balloon is 24 °C, and that the pressure inside the balloon remains constant. A. 3 K B. 42 K C. 128 K D. 390 K