whats the mass of lioh do we need to keep 3 astronauts and a chimp alive for 7 days in space assume that each day releases 540 of g CO2 every day?

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

In science class richard learns that a substance has a boiling point of 230 fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of his substance in degrees celsius