A clay ball (50 degrees Fahrenheit) is placed in a bucket of water (80 degrees Fahrenheit.) which scenario describes how heat energy is transferred between the ball and water? a.) heat energy is transferred from the ball to the water until they are both at 65 degrees Fahrenheit.

b.) heat energy is transferred from the water to the ball until they are both at 65 degrees Fahrenheit.

c.) heat energy is transferred from the water to the ball until the ball is at 80 degrees Fahrenheit and the water is at 50 degrees Fahrenheit.

d.) no heat energy would be transferred between the ball and the water, so the ball will stay at 50 degrees Fahrenheit and the water will stay at 80 degrees Fahrenheit.

The pressure in a fluid is affected by which characteristics of that fluid

Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: