If two elements A and B combine in different ratios to form two compounds, and , then according to the Law of Multiple Proportions:
The ratio of masses of B which combine with a fixed mass of A is a simple whole number ratio.
The ratio of masses of A which combine with a fixed mass of B is a simple whole number ratio.
The ratio of masses of A which combine with a fixed mass of A is a simple whole number ratio.
The ratio of masses of B which combine with a fixed mass of B is a simple whole number ratio.
Related Questions
Iron filings are added to a solution of copper sulfate. Which observation indicates a metal displacement reaction has occurred?
Gas bubbles are produced.
The temperature of the solution decreases.
The blue solution fades and a reddish-brown solid deposits.
The solution becomes more intensely blue.
A mixture of and weighing 1.12 g is treated with an excess of red hot . The is converted to . The total weight of produced is 1.6 g. What was the weight percentage of in the original mixture?
42.86%
57.14%
28.57%
71.43%
10 g of a metal oxide on strong heating gave 6.4 g of metal. If the formula of the metal oxide is , what is the atomic mass of the metal M?
56
43
27
65
Two elements X and Y combine to form two compounds and . If 0.05 moles of weighs 5 g and 0.10 moles of weighs 20 g, find the atomic masses of X and Y.
X = 40, Y = 30
X = 50, Y = 25
X = 60, Y = 20
Cannot be determined from the given data
Which of the following reactions is the metal displacement reaction? Choose the right option.
Which of the following reactions is not correct according to law of conservation of mass
Two elements, X and Y, combine to form two compounds. Compound A contains 27.3% X and 72.7% Y by mass. Compound B contains 42.9% X and 57.1% Y by mass. If the mass of Y is fixed at 100g in both compounds, which of the following represents the masses of X in the two compounds, consistent with the Law of Multiple Proportions?
37.5g and 75g
27.3g and 42.9g
137.5g and 175g
72.7g and 57.1g
Which of the following postulates of Dalton's atomic theory explains the Law of Conservation of Mass?
Atoms of different elements have different masses.
Atoms are indivisible particles.
Atoms combine in simple whole number ratios to form compounds.
Atoms are neither created nor destroyed during a chemical reaction.
A student places a piece of metal X into a solution of . No reaction is observed. The student then places a piece of metal X into a solution of . A reaction occurs, and a reddish-brown solid forms. Where would metal X most likely be placed in the reactivity series?
Above Zn
Below Cu
Between Zn and Cu
Above both Zn and Cu
