An observation that requires measurement

When 0.723 L of a 0.89 M solution is diluted to 2.880 L, what is the new molarity

Which of the following statements is true? Evaporation is the main way water enters the atmosphere. Condensation is the opposite of evaporation. The total amount of water on the earth stays the same. all of the above

aluminum nitrite and ammonium cloride react to form aluminium chloride. nitrogen and water. what mass of alluminum chloride is present of 43g of ammonium nitrite have reacted completely

The second step of Experiment 5's multistep synthesis is an electrophilic aromatic substitution (EAS) reaction, similar to the reactions of our Klein text. What two key mechanistic steps are always involved in EAS reactions? A.

How many valence electrons does a carbon atom have?

What are the three particles of an atom? A. Neutron, electron, and ion B. Proton, ion, and valencium C. Proton, neutron, and electron D. Electron, proton, and isotope

A gas has a volume of 2L at STP. How many moles of the gas are present?

What happens when the magnet is removed from the coil in a circuit? a. The current stops c. The voltage decreases b. The current changes direction d. Power output increases

Which of the following is not an organic compound? Lipid Carbohydrate Water Protein

Rank the species (amide ion, ammonia, or ammonium ion) from the largest to the smallest H-N-HH-N-H bond angle? Rank from largest to smallest H-N-HH-N-H bond angle. To rank items as equivalent, overlap them.