How do you know when it's the same element?

2CH4 + 4O2 → CO2 + 4H2O Which statement is true regarding the chemical equation? A) The equation is balanced. B) The 4 in front of the oxygen on the product side needs to be a 6 in order to be balanced.

Aqueous hydrochloric acid will react with solid sodium hydroxide to produce aqueous sodium chloride and liquid water. Suppose 34. g of hydrochloric acid is mixed with 9.30 g of sodium hydroxide.

What is meant by the following statement? "Acceleration is inversely proportional to mass." Acceleration decreases as mass decreases. Acceleration and mass are opposites. Acceleration increases as mass decreases.

Heating a solid substance often causes it to A) condense B) freeze C) evaporate D) dissolve E) melt

Sodium fluorophosphate is a chemical used in toothpaste to

When making a solution of sugar and water, you begin with a 500 ml beaker, 10 grams of sugar, and 400 ml of distilled water. which procedure will allow you to dissolve the most sugar in the least amount of time?

What is the definition of covalent bond?

How many grams of H2O will be produced if 18.1 grams of Fe are produced? Fe3O4 + H2 - Fe + H20 Select one: O a. 7.8 Ob. 75 O c. 17 O d. 1.5

1. Where are the most massive elements found on the periodic table? A at the bottom right B at the top right C at the top left D at the bottom left

Lenny accidentally drops his matchbox car into a graduated cylinder. if the car has a mass of 10 grams and the water level in the cylinder rises from 41 ml to 46 ml. determine the density of the matchbox car. the formula for density is d = m v