Polymers are made of connected monomer subunits that are joined by what type of bonds? a. covalent bonds b. ionic bonds c. hydrophobic bonds d. hydrogen bonds

The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?

Can someone me with questions 12 and 13 plz.

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?