A hydrocarbon consists of four carbon atoms with one double bond. Predict the molecular formula of this compound.

The primary difference between a scientific theory and a hypothesis is that a theory is

Explain how antimony is useful for humans. What is it used for?

a 2.17 gm sample barium reacted completely with water what is the equation for the reaction how many milliliters of dry H2 evoled at 21degree celcius and 748mm of Hg? solution

1. The cell wall of a fungi is made of what? cellulose chitin cytoplasm 2. True or False: Fungi are different from animals because they have cell walls and are autotrophs. True False 3. All protists are autotrophs heterotrophs eukaryotes unicellular

Which statement describes a newton? O It exists only for objects on Earth. It measures the mass of an object It reflects the amount of force an object exerts. It states that every object attracts another object

4 HCI + O2 - > 2 H2O + 2 CH2 How many moles of H2O can be produced from 30. moles of HCI?

How many molecules of nitrogen gas are in 22.4 L? A. 6.022 * 10^22 B. 6.022 * 10^23 C. 6.022 * 10^24 D. 6.022 * 10^25

What is the pH of a 0.0025M HCI solution?

Moles of Zn (NO3) 2 in 131.50g of this substance.

Each degree on the Kelvin scale equals: 1°C 10°C no relationship (different scale) 100°C