Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

Determine if the following statements are true or false. If a statement is false correct it so that it is true. a. in nature the direction of the transfer heat energy is always from a hotter object to colder object b.

Which event might limit a cattail population

The organisms living together in a community are interdependent upon one another. Look at the food web below. In which of the following ways is a puffin dependent upon salmon? A. Puffins have a commensalistic relationship with salmon. B.

If the atomic number of Chlorine atom is 17 and atomic mass is 35.5u, compute the number of protons, electrons and neutrons.

Calculate the heat needed to be removed to freeze 45g of water at 0C

When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. what volume of h2 is produced when 7.20 g of al reacts at stp?

Which is most likely the result of millions of metal atoms crowding together so that molecular orbitals become combined?

How is the Kyoto Protocol enforced A. By using carbon credits and debits B. By banning aerosols C. By banning CFCs D. By monitoring the ozone hole

What are all the elements to the left of the zigzag line in a periodic table called?

Gravitational force is produced by ___ between objects