What mineral is described below? - white and glassy in appearance - mass = 54 grams - volume = 20 milliliters - scratches a fingernail but not a penny - white streak - fizzes in acid a. calcite b. gypsum c. quartz d. dolomite

Idon’t know how to solve this question

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?