Elements in the same group have similar properties. Which pair of elements would you expect to have similar properties? O carbon (C) and silicon (Si)
O copper (Cu) and zinc (Zn)
O hydrogen (H) and helium (He)
O nitrogen (N) and oxygen (O)

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2al(s)+3cl2(g)→2alcl3(s) what is the maximum mass of aluminum chloride that can be formed when reacting 32.0 g of aluminum with 37.0 g of chlorine? express your answer to three significant figures and include the appropriate units.

Select the atomic models that belong to the same element

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options: