One half of a balanced chemical equation is shown. 3mg(oh)2 + 2h3po4 which lists the numbers of each atom the other half of the equation would contain? a.) 3 mg, 2 p, 14 o, 12 h b.) mg, 2 p, 14 o, 6 h c.) 3 mg, 8 p, 7 o, 6 h d.) 6 mg, 6 p, 2 o, 12 h

3 Mg, 2 P, 14 O and 12 H

Explanation:

The relation between magnesium hydroxide and phosphoric acid is :

The number of each atom on both side of chemical equation must be same as per law of conservation of atoms.

No of Mg (magnesium) atoms are 3

No. of P (phosphorous) atoms are 2

No. of O (oxygen) atoms are 2 × 3 + 4 × 2 = 14

No. of H (hydrogen) atoms are 2 × 3 + 2 × 3 = 12

Hence, the correct option is (A) " 3 Mg, 2 P, 14 O, 12 H ".

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance         (d) = 3 feet

time taken to lift                         (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

                  1 h.p   = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

                      h.p = (force × distance)/ time

                            = (10 × 3)/ 10

                            = 30/10

                            = 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts