Which of the following is a balanced chemical equation?

2 Mg + HC1 → MgCl2 + H2

SO2 + O2 + 2 H2O → 4 H2SO4

2 Fe2O3 + 3 C → 4 Fe + 3 CO2

H2O2 → H2O + O2

Helium is most likely to behave as an ideal gas when it is under (1) high pressure and high temperature (2) high pressure and low temperature (3) low pressure and high temperature (4) low pressure and low temperature

Atoms with the same atomic number but different atomic mass are called A. prototypes. B. subtypes. C. isotopes. D. ions.

Competition between two species occurs when 1. Mold grows on a tree that has fallen in the forest 2. Chipmunks and squirrels eat sunflower seeds in a garden 3. A crow feeds on the remains of a rabbit killed on the road 4.

Energy of particles increase or decrease

What is the value of the angular momentum quantum number associated with 6p?

Compare the temperature of water as ice begins to form with the temperature of ice as it begins to melt?

Which elements are present in sugars?

How does Q compare to Keg? O Q> Keq O Q< Kea OQ = Keg

What is the mass (in grams) of 9.09x10^24 molecules of methanol (CH3OH) ? AND How many moles of N are in 0.183g of N2O?

What are the basic building blocks of matter? A) molecules B) atoms C) electrons D) compounds