5) Samantha added 125 mL of water to 100mL of a stock solution to make

225 mL of a 0.75 M solution. What was the molarity of the original stock

solution?

O 1.7 M.

O 0.3 M

O 0.75 M

O 3M

A molecule is made up of two or more chemically bonded atoms. true or false

Which of the following is the correct Lewis structure for ammonia?

Question 19 Unsaved Which of the following is NOT one of the warning signs used to predict a volcanic eruption?

According to the animation, what does the electron transport chain do to the concentration of hydrogen ions (protons)

What is the molar mass of ethanol (C2H60) ?

Which of the following changes would decrease the rate at which a solid solute dissolves in a liquid solvent? A. Decreasing pressure B. Decreasing surface area C. Increasing rate of stirring D. Increasing temperature

Helium, neon, and argon are examples of A) metals B) metalloids C) noble gases D) transitional metals

How many moles of MgS2O3 are in 201 g of the compound

What is the process of discovery that allows us to link abservations with actual facts? Science Inquiry Mathematics Repetition

Elastic energy is stored when an object is stretched. Is this an example of potential or kinetic energy? A. Neither B. Both d C. Kinetic O D. Potential Reset Selection