Обчисліть і вкажіть об'єм (н. у.) сульфур діоксиду, який утвориться в результаті спалювання 1 т вугілля, масова частка сірки в якому складає 3,13 %

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o

What is the significance sodium hydroxide and hydrochloric acid