Which example is a renewable energy source?

a) sunlight

b) coal

c) anthracite

d) natural gas

100. ml of soft drink a contains 75 g of sugar and weighs 110 g. Calculate the density of the soft drink?

A possible answer to a scientific question is known as

As you move from what to what on the periodic table, the atomic radius of the atoms increase

How does water evaporate from: (different things)

Elements x and y form 2 binary compounds. In the first 14.0 g of x combines with 3.0 g of y. In the second, 7.00 g of x combine with 4.50 g of y. The second compound has formula xy, what is the formula of the first one?

A person drinks eight glasses of water each day, if each glass contains 300mL how many liters of water does a person drink in a year?

An organic compound contains C=61%, H=11.8% and O=27.12%. Calculate the empirical formula and molecular formula of the compound. The vapour density of the compound is 59.

Roberto throws a tennis ball to a friend. He then throws a baseball with the same amount of force. Which ball is accelerated more? Why?

How does parsec compare to light year

A sample of solid NH4NO3 was placed in an evacuated container and then heated so that it decomposed explosively according to the following equation: NH4NO3 (s) N2O (g) + 2H2O (g) At equilibrium, the total pressure in the container was found to be 2.