A radioactive sample with a half-life of 1 day is placed in a container. Three days later, only 1 kg of the substance is still radioactive. How much pf the radioactive substance was initially placed in the container

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag

Which change to the system wood cause the freely-moving piston to lower?