Determine which of the following statements is true. A. A catalyst causes the reaction to move more slowly so that the equilibrium position can be precisely adjusted. B. A catalyst causes equilibrium to be reached faster without changing the position of the equilibrium. C. A catalyst raises the activation energy of a reaction. D. A catalyst speeds up the rate of the forward reaction which moves the equilibrium towards the products.

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

Which element would mostly likely have an electron affinity measuring closest to zero

Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback