1. For each of your three trials state the following:

• heat needed to melt the ice (q)

• enthalpy of fusion

• percent error from the accepted enthalpy of fusion of water of 334 J/g

Answer:

The majority of energy used in industrialized countries is produced using renewable resources. A. True. B. False.

What is the abbreviated electron configuration of iodine (I) ? a. 5525d105p5 b. [Kr] 5s24d105p5 c. [Cd] 5p5 d. [Sr] 4d105p5

Consider the reaction of Mg3N2 with H2O to form Mg (OH) 2 and NH3. If 4.33 g H2O is reacted with excess Mg3N2 and 6.26 g of Mg (OH) 2 is ultimately isolated, what is the percent yield for the reaction?

How is molarity measured? O A. In liters of water per moles of a dissolved substance B. In liters of water per gram of a dissolved substance O C. In moles of a substance for 1 g of that substance D. In moles of a substance dissolved in 1 L of water

What are the components of an isotope?

What is the volume of an object with a height of 2.3cm, a width of 2.4cm, a mass of 17.5g, and a length of 20cm?

Is layers of sediment forming at the bottom of the ocean erosion?

How to find the better buy of two of the same item, but they have different units of measurements and different costs.?

The agricultural practice of spraying insecticides leaves behind which pollutant in the soil? A. Chemical poison B. Excess nitrogen C. Excess salt D. Acidic compounds

What is the name of the compound composed of iron and carbonate? [hint: iron has a + 3 charge in this compound]?