Which pair of elements can form ionic bonds

4. A big league hitter attacks a fastball! The ball has a mass of 0.16 kg. It is pitched at 38 m/s. After the player hits the ball, it is now traveling 44 m/s in the opposite direction. The impact lasted 0.002 seconds.

A person's heartbeat is 68 beats per minute. If his/her heart beats 3.1e9 times in a lifetime, how long (in whole years) does the person live? Disregard leap years.

At equilibrium a mixture of n2, h2, nh3 gas at 500◦c is determined to consist of 0.551 mol/l of n2, 0.400 mol/l of h2, and 0.184 mol/l of nh3. what is the equilibrium constant for the reaction

Location A and B are adjacent. Location A is at a higher temperature than Location B. What will most likely happen? A. The two locations will experience different air pressures. B. The convection currents of air above the two locations will stop. C.

Compare a humans changes during exercise to the changes that occur a during a dogs exercise when it is exposed to a hot environment

What is a scientific explanation for a range of hypotheses and observations supported by testing

A chemical reaction involves the rearrangement of atoms to form new molecules. During a chemical reaction, however, atoms are neither created nor destroyed. Which of the following is true about the atoms involved in a chemical reaction? A.

What is the new concentration, after diluting 300 mL of a 1.5 M LiCl solution to 1L

The answer that he gave was wrong

In which orbital does an electron in a bromine atom experience the smallest?