Why are some mystery elements easier to identify than other?

Justin and his friends are on the football team. they consider skateboarders at their school to be an out-group. what does this mean?

A draft is made of a plastic block with a density of 650kg/m^3, and its dimensions are 2.0mx3.0mx5.0m, what is the raft's apparent weight in water? (hint:density of water=1.00x10^3kg/m^3

What is the theoretical volume of 10mL of an ideal gas at absolute zero?

Why would a meteorologist compare a new weather map with one that is 24 hours old?

In a solution if substance A makes up 1%, substance B makes up 9%, substance C makes up 20% and substance D makes up 70%, which substance would generally function as the solvent? A. Substance D B. Substance C C. Substance A D. Substance B

If a force of 40 newtons moves a cart a distance of 9 meters, the work done is Nm. If the same force moves the same cart three times that distance, the work done is Nm. NextReset

1. Identify this mystery element: I am very reactive, I desperately want to get rid of my electron. When I make a compound with Chlorine it is table salt. Who am I? 2. Identify this mystery element. I am amazing and have no cares in the world.

Since all stars begin their lives with the same basic composition, what characteristic most determines how they will differ? 1. location where they are formed 2. time they are formed 3. luminosity they are formed with 4. mass they are formed with 5.

What primarily involves heat transfer by convection?

Each of the following lists two facts. which pair can be used with newton's version of kepler's third law to determine the mass of the sun? each of the following lists two facts.