When do scientist rely on estimates

What types of compounds do not dissolve in water?

How do you think a country's GDP affects its citizen ability to consume

How many moles of N are in 0.173 g of N2O?

You have 0.00891 g of platinum. What is this in micrograms?

Use the equation to determine what mass of FeS must react to form 326 g of FeCl2. FeS + 2 HCl à H2S + FeCl2

For most compounds with a single keto group in the molecule, equilibrium favors the keto form over the enol form of the compound. this is due largely to what?

The partial negative charge in a molecule of water occurs because the electrons shared between the oxygen and hydrogen stoms spend more time around the oxygen atom nucleus than around the hydrogen atom nucleus?

An electron moved from a higher energy level to a lower energy level. What most likely happened during the transition?

As the average kinetic energy of the particles in a gas increases, which of the following occurs? The temperature of the gas increases. The temperature of the gas decreases. The number of particles increases. The number of particles decreases.

What is the type of strong chemical bond between carbon, hydrogen, and oxygen atoms in a single organic molecule?