How does the specific heat of water compare to the specific heat of concrete?

Calculate the heat change in kilojoules for condensation of 195 g of steam at 100 ° C

describe how a potassium atom becomes an ion and how a fluorine atom becomes an ion. state the formula of each ion.

Consider the reaction of CaCN2 and water to produce CaCO3 and NH3 according to the reaction CaCN2 + 3H2O → CaCO3 + 2 NH3. How much CaCO3 is produced upon reaction of 45 g CaCN2 and 45 g of H2O? 1. 750 g 2. 250 g 3. 56 g 4. 19 g 5. 83 g 6. 28 g 7.

Evidence suggests that giraffes once had short necks. how does natural selection explain why giraffes now have long necks

When the following oxidation-reduction reaction in acidic solution is balanced, what is the lowest whole-number coefficient for H2O, and on which side of the balanced equation should it appear?

All metals a melt at high temperatures b conduct heat and electricity c contain iron d react with air and water

Predict the following chemical formula for a compound between calcium and chlorine.

Two pieces of silk have an electric charge after being rubbed on a piece of amber. What will happen when the two silk pieces are brought close together? A. They will repel one another. B. They will attract one another. C.

The chemicals formula of glucose is c6h12o6. what are the names of the elements in glucose and how many atoms of each element are present in glucose molecules

When K-37 undergoes positron emission, what is the resulting atom? A) K-37 B) K-38 C) Ar-37 D) Ar-38