Which of the following is not a primary color in the continuous visible spectrum?
A) green
B) red
C) violet
D) white
E) yellow
Question 2
a balanced net ionic equation for the reaction of AgNO3(aq) with Cu(s).
A) AgNO3(aq) + Cu(s) Ag(s) + CuNO3(aq)
B) Ag+(aq) + Cu(s) Ag(s) + Cu+(aq)
C) 2 AgNO3(aq) + Cu(s) 2 Ag(s) + CuNO3(aq)
D) 2Ag+(aq) + Cu(s) 2 Ag(s) + Cu2+(aq)
Question 3
Which of the following steps is necessary to solve a mass-mass stoichiometry problem?
A) Write a balanced equation for the reaction.
B) Calculate the moles of known substance.
C) Convert moles of known to moles of unknown.
D) Calculate the mass of unknown substance.
E) all of the above
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(left) Urine sample from an unaffected person does not change color upon exposure to air. (right) Ur