Calcule o calor especifico do estanho sabendo que foram necessarias 100 cal para elevar em 20ºc a temperatura de 100 g de estanho

Which of these is an intensive property of a substance

What mass of glucose is produced when 54g of water react with carbon dioxide

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.