Members of which group easily lose an electron to form a 1 cation? a. halogens b. alkaline earth metals c. noble gases d. alkali metals

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: