Thorium-234 has a half-life of 24.1 days. how much of a 100-g sample of thorium-234 will be unchanged after 48.2 days?

How many grams of aluminum will there be in 98g of al2o3?

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas

What is the importance of interlocking the fingers and rubbing while washing hands? the palms are the dirtiest parts of the hands. the spaces between the fingers get washed. the backs of the hands get washed. the fingernails are the dirtiest parts of the hands