Why do the properties of a pure substance not vary from sample to sample

For the haber process, n2 + 3h2 → 2nh3, what volume of nitrogen is consumed at stp if you collect 44.8 l of ammonia in excess hydrogen (n = 14 amu, h = 1 amu) ?

What is the smartest particle of the element gold that can still b classified as gold

How many joules of heat energy would be needed to raise the temperature of 248 grams of water from 25.0 degrees Celsius to 55.0 degrees Celsius? The specific heat capacity of liquid water is 4.18J / (C x g)

Which statement about the elements in the periodic table is true?

True or False? Not all compounds will dissolve in water.

Water is a colorless and odorless liquid. It can exist in solid, liquid, and gas states. It boils at 100 degrees C and melts at 0 degrees C. Which option best describes this information? A. These are the physical properties of water. B.

What can happen to a supersaturated silution?

What is the source for georthermal energy

What senses will we use only with permission from a teacher or adult in Physical Science Labs?

Where is chemistry used?