6. Which of the following isotopes has the same

number of neutrons as phosphorus-31?

a. 32P

b. 32S

c. 28Si

d. 29Si

Evan has a rock. The rock has a mass of 12g and a volume of 4cm3. What is the density of the rock?

Your science teacher gives you three liquids to pour into a jar. After pouring, the liquids layer as seen here. What property of matter allows the different liquids to layer in the jar? A) color B) density C) mass D) texture

In order to dilute 1.0L of a 6.00M solution of sodium hydroxide to 0.500M concentration, how much water (in mL) must you add?

Balance the half reaction, c5o5 2 - (g) â co3 2 - (aq), taking place in basic media. which answer below describes how many hydroxide ions are needed to balance the half reaction?

A student blows up a ballon and then places it in a very cold freezer the ballon shrunk after hours why?!

The type of social bonds present in modern societies that are based on difference, interdependence, and individual rights is called:

The difference between ionic covalent and metallic bonding

As the speed of a particle increases, does its associated wavelenght increase or decrease

The composition of air by volume is approximately 1/5 oxygen, 4/5 nitrogen. When air is passed through red-hot carbon, the following reaction occurs: 2C + O2 (g) 2CO (g).

How many atomic mass units are equal to 1.672*10-24 g of protons?