Part a use the following information to answer the question(s) below. you are given four test tubes, each containing an unknown protist. your task is to read the following description and match these four protists to the correct test tube. when red and blue light are shone on the tubes, oxygen bubbles accumulate on the inside of test tubes 1 and 2. chemical analysis of test tube 1 indicates the presence of a chemical that is toxic to fish and humans. chemical analysis of test tube 2 indicates the presence of substantial amounts of silica. microscopic analysis of organisms in test tube 3 reveals the presence of an apicoplast in each. microscopic analysis of the contents in test tube 4 reveals thousands of cilia on the surface of the organism. test tube 4 contains

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2