Pl help It's your 16th birthday. You've been given 1 penny every second since you were born. You want to use all that money to buy gold to make rings for your classmates. How many rings can you make? Useful information: 1 ring = 1.3 mL of gold, 1 gram of gold = $58, density of gold is 19.3 grams/mL

Why does his teacher ask him to balance the equation by including the correct coefficient

Achemical reaction is done in the setup shown , resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?

The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants.thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction.ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch,are burned? b) how much energy is released when 22.4g of ch. areburned?