Which of the following bond is considered to be ionic, and explain why: C-O, Ca-CL, S-N and Si-O

What clues indicate that a rusty bike has gone through a chemical change

You observe that the snow pile on your yard has decreased in size although the temperature has not been above freezing since the last snowfall what most likely occurred

The volume of a gas is 200 mL at 315.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa, assuming the temperature remains constant?

Identify the items in the list below that are examples of matter. Check all that apply. idea iron sugar sound glass neon gas Choose the correct description for each of the properties below:

Give the formulas for the ionic compounds made of the following ions: Sc3 + and Br¯ K + and O2¯ Ca2 + and I¯ Cr3 + and S2¯ Rb + and F¯ magnesium (Mg) and oxygen (O) ions potassium (K) and nitrogen (N) ions strontium (Sr) and fluorine (F) ions

Describe what occurs when a gas is collected by water displacement, including why a table of water vapor pressure values is needed.

The theory of plate tectonics

A sample of sodium reacts completely with 0.568 kg of chlorine, forming 936 g of sodium chloride. What mass of sodium reacted?

When do water molecule forms hydrogen bond with another water molecule which atoms are involved in the interation?

How are natural polymers and synthetic polymers similar? A) Both are made up of phosphates and organic bases B) Both serve important roles in producing amino acids C) Both are made up of monomers that are linked by covalent bonds