How many joules of heat is needed to raise the temperature of 10.0 g of aluminum from 22 ° C to 55 ° C, if the specific heat of aluminum is 0.90 J / g? C?

What element breaks down into yttrium-90?

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Drug abuse will not lead to physical and psychological dependence. true or false ?