Find the molar mass of potassium dichromate, K2Cr2O7

What group consists entirely of organic molecules

The freezing of water at 0° can be represented as follows h2o (1) h2o (5)

Will give brainliest 1. name at least three uses of a mineral resource 2. what are some examples of Alternative Eneries in the U. S. 3.

Which two parts of the earth system is a paleontologist involved in?

AB Reacts with C2 to yield AC and B. 2AB+C2-->2AC+2B The molar mass of AB is 75.0 g/mol, the molar mass of AC is 60.0 g/mol, and the molar mass of B is 50.0 g/mol. a) What is the theoretical yield (in grams) of AC from the reaction of 41.

The gases CO₂ (g) and NH₃ (g) can be liquefied at 20°C by compressing them to sufficiently high pressures. A student claims that NH₃ (g) can be liquefied at a lower pressure than CO₂ (g) can be liquefied.

Which is a pure substance A) mixture B) solution C) element

Samuel adds a teaspoon of salt to a glass of water. He notices that the song disappears. Samuel takes a sip to discover that the water taste salty. What kind of change has occurred?

How are the physical and chemical properties of atoms represented on the periodic table of elements

how do we know isotopes exist?