alexadra has a density of 3.72g/mL. and a mass of 11160 mg. If the object is placed in a graduated cylinder containing 25 mL of water. What is the final volume?

Write the atomic cores for potassium and chloride ions

During which process of the water cycle does water change from a gas to a liquid? A. precipitation B. condensation C. transpiration D. evaporation

1. What is the frequency of light having a wavelength of 406 nm? 2. What is the wavelength (in nm) of radiation having a frequency of 2.09 * 109 Hz?

Consider a 1.0 L cotainer of neon gas at STP. Will the averageklinetic energy, average velocity, and frequency of collisions ofgas molecules with the walls of the container increase, decrease, or remain the same under each of the following

How many moles and number of ions magnesium chloride 52.3ml?

Which ionic compound is the most likely to dissolve in water? CaSO4 Na2SO4 BaSO4 SrSO4

Calcium (atomic number 20) has electron configuration 1s2,2s2,2p6,3s2,3p6,4s2. The atomic number of scandium is 21. Which orbital does the 21st electron enter? a. 3d b. 4p c. 4d d. 4f

In these solutions, identify the solute and the solvent Sea water, a solution composed of a variety of salts dissolved in water. The salt is the Soda water, a solution composed of carbon dioxide gas dissolved in water.

What is an Element and how it different from a Atom?

4 HCI + O2 - > 2 H2O + 2 CH2 How many moles of H2O can be produced from 30. moles of HCI?