Mno2 + 4hcl = mncl2 + cl2 + 2h2o determine which reactant is excess

An object has a mass of 100 grams and a volume of 20cm. what is the density of the object?

In which laboratory process is a volume of solution of known concentration used to determine the concentration of another solution? (1) deposition (2) distillation (3) filtration (4) titration

Mass fraction of sulfur and oxygen in the crust are respectively 0.52 and 0.295. How many times is the number of oxygen atoms in the Earth's crust More sulfur atoms?

What trend do you observe in electronegativity on the periodic table? -increases from left to right - increases from top to bottom - increases in all directions out from the element Fluorine

A k atom differs from a k ion in that the k atom has one

The number of Joules needed to raise the temperature of 10 grams of water from 20°C to 30°C is

Two samples of carbon tetrachloride were decomposed into their constituent elements. One sample produced 38.9 g of carbon and 451 g of chlorine, and the other sample produced 14.8 g of carbon and 135 g of chlorine.

When you burned copper, the product copper oxide appeared on the wire. Besides copper, the other reactant is

An organic compound is one that contains the element carbon. true or false

Most thermal energy in the atmosphere is transferred by what