Which pair of elements will form a covalent bond? A. Aluminum and chlorine

B. Iithium and oxygen

C. Potassium and chlorine

D. Carbon and sulfur

Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?