Blood is forced through the body by the

(1) brain

(2) lungs

(3) heart

(4) stomach

The process of sodium metal reacting with water to form sodium hydroxide and hydrogen gas is spontaneous. true or false?

62 grams of Zn (C2H3O2) 4 are dissolved to make a 1.5 M solution. How many milliliters of water are needed?

Among the elements of the main group, the general trend in the first ionization energy moving across a period is not followed between group 2 and group 13.

A substance that accepts hydrogen ions (H+) is O an acid. O a base.

What happens to an atom when it gets oxidized? A. It's oxidation state increases B. It's atomic number increases C. its oxidation state decreases D. It's ionic charge decreases

Identify the characteristics of tornadoes and hurricanes

When magma intrudes parallel to another rock layer, the formation is called a (n) A. sill. B. dike. C. extrusion. D. unconformity.

What is the net amount of energy released when 1 mole of H2O is produced

Why is Sn (SO4) 2 named Tin (IV) Sulfate and not Tin (II) Sulfate?

An element x forms an iodide (xi3) and a chloride (xcl3). the iodide is quantitatively converted to the chloride when it is heated in a stream of chlorine: 2xi3+3cl2â2xcl3+3i2 if 0.5500 g of xi3 is treated, 0.2596 g of xcl3 is obtained.