What mass of natural gas (ch4) must you burn to emit 273 kj of heat

According to the tide table below what time of day will the highest tide occur?

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?