Question 3 1 carbon monoxide can be broken down into

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1 pointsQUESTION 31.Carbon monoxide can be broken down into carbon and oxygen in amass ratio of 3:4 or 0.75. Carbon dioxide can be broken down into carbonand oxygen in a mass ratio of 3:8 or 0.375. The fact that the ratio of 0.75 to0.375 is a small whole number is an illustration of
The Law of Conservation ofMassb.
1 pointsQUESTION 41.Which of the following pairs of compounds can be used to illustrate the law ofmultiple proportions?
1 pointsQUESTION 51.Which mass law(s) is/are illustrated in the figure below?
1 pointsQUESTION 61.Rutherford's experiment with alpha particle scattering by gold foilestablished thataelectrons have a negative charge.
.b.protons are 1840 times heavier than electrons.c.protons are not evenly distributed throughoutan atom.d.atoms are made of protons, neutrons andelectrons.e.the nucleus contains protons and neutrons.1 pointsQUESTION 71.What is the sum of the numbers of neutrons and electrons in theion209Pb3+?1 pointsQUESTION 81.Which of these have the same number of electrons?I. Br-, Kr, Sr2+II. C, N-, O2-III. Mg2+, Ca2+, Sr2+IV. O2-, O, O2+V. Ag+, Cd2+, Pda.I, IIb.I, Vc.I, III, IVd.II, III, Ve.I, III, IV,V
1 pointsQUESTION 91.Which subatomic particle was discovered using cathode ray tubes?

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Term
Fall
Professor
Staff
Tags
Chemistry, Atom, Electron, grams of oxygen

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