You are given 68 g of aluminum (Al) and excess water. How many grams of aluminum oxide (Al2O3) can you make? 4 Al + 3O2 --> 2Al2O3
Question 13 options:

95.84 g Al2O3

2.52 g Al2O3

128.48 g Al2O3

101.96 g Al2O3

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.

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m