H2S (g) + O2 (g) - > SO2 + H2O, how many grams of O2 are needed to make 25.0 g of SO2 (Hint: balance the equation first)

a.) 12.5g

b.) 18.7g

c.) 32.0g

d.) can't be determined

Why do the elements at the bottom of the periodic table have lower ionization energies than their group/family partners at the top of the periodic table?

If a certain gas occupies a volume of 13 L when the applied pressure is 6.5 atm, find the pressure when the gas occupies a volume of 3.3 L

What is the group number of the alkali metals

How many vertical columns are in the periodic table?

A commercial hand warmer contains 100 grams of iron and warms according to the thermochemistry equation below. If the oxygen is in excess, how much heat (q) will the hand warmer produce when all of the iron is oxidized (molar mass Fe = 55.8g/mol

Two identical atoms from Area B bond together. What type of bond will they most likely form A. Electrostatic B. Metallic C. Ionic D. Covalent

Which would be the best way to represent the concentration of a 1.75 M K2CrO4 solution? 1.75% K2CrO4 [K2CrO4] (K2CrO4) K2CrO4, [M] = 1.75

Consider the reaction C12H22O11 (s) + 12O2 (g) →12CO2 (g) + 11H2O (l) in which 10.0 g of sucrose, C12H22O11, was burned in a bomb calorimeter with a heat capacity of 7.50 kJ/∘C. The temperature increase inside the calorimeter was found to be 22.0 ∘C.

List three pros and three cons of nuclear energy.

What is the formula or equation for motion, speed and energy?