Whats 2 + 2? correct answers only

Why is the metric (SI) system called a decimal system of measurement

Cutting a forest destroys habitats and can lead to soil erosion

Mathematically define heat capacity

A student reacts 89g of salicylic acid with 21 ml of acetic anhydride producing 11.3g of acetyl salicylic acid. what is the percent yield of the reaction?

How many double bonds are in an alkane?

Vitamin A is a very large organic molecule composed of twenty atoms of carbon, one atom of oxygen and thirty atoms of hydrogen. How many atoms total are in TWO molecules of vitamin A. Select one: 84 68 34 102

How many moles of nitrous oxide gas (N2O) is contained in 20.0 L balloon at a pressure of 1.09 atm and a temperature of 298K?

If a wave produced by a fireworks explosion is that light wave or sound wave

What kind of electrons are involved in chemical bonding?

When a solid changes to gas, what is it called?