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first, write down the mass, Mr and calculate the moles of NaCl.mass = 350gMr = 24.0 + 35.5 = 58.5mol = mass/Mr = 350/58.5 = 5.98 (3s.f)now calculate the concentration in 3dm3 of watervol = 3mol = 5.98conc...

a) prices remain constantb) suppliers will increase pricec) consumers will demand mored) suppliers will reduce pricethe answer would be D as the supply increases, this causes a rightwards shift in supply,...

Thinking about each term individually, we can rewrite the equation as:3 x a x 4 x a x b = then we can multiply the numbers: 3 x 4 = 12then multiply the letters: a x a = a2 (a squared) x bnow join everythi...

label equation 5x + y = 21 as (1) and equation x - 3y = 9 as (2) multiply equation (2) by 5 to get : 5x - 15y = 9 (3) then subtract equation (1) from equation (2) in order the eliminate the x variable -1...