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A substance that contains hydrogen that may be replaced by a metal is a/an A. colloid. B. nonmetal. C. base. D. acid.
Question|Asked by Talhamirza45
Asked 2/24/2019 4:26:56 PM
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User: A substance that contains hydrogen that may be replaced by a metal is a/an A. colloid. B. nonmetal. C. base. D. acid.

Weegy: A substance that contains hydrogen that may be replaced by a metal is an ACID.
|Score 1|yumdrea|Points 46121|

User: A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is a _______ reaction. A. decomposition B. substitution C. double replacement D. combination

Weegy: A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is a COMBINATION reaction.
Score 1

User: A chemical reaction in which two elements or radicals change places with two other elements or radicals is a _______ reaction. A. combination B. double replacement C. substitution D. decomposition

Weegy: A chemical reaction in which two elements or radicals change places with two other elements or radicals is a DOUBLE REPLACEMENT.
|Score 1|Time Walk|Points 53|

User: In the chemical equation Zn + 2HCL ZnCl2 + H2, the reactants are A. zinc and hydrochloric acid. B. zinc and hydrogen carbonate. C. zinc chlorate and water. D. zinc chloride and hydrogen.

Weegy: In the chemical equation Zn + 2HCl - > ZnCl2 + H2, the reactants are: zinc and hydrochloric acid.
Expert answered|Janet17|Points 40814|

User: Which of the following is one way to prevent the corrosion of iron? A. Paint exposed iron parts with protective paint. B. Let the iron develop a natural coat of carbonate. C. Add carbon to the iron. D. Protect the iron from polluted air.

Weegy: Paint exposed iron parts with protective paint is one way to prevent the corrosion of iron.
Expert answered|Janet17|Points 40814|

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Asked 2/24/2019 4:26:56 PM
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Questions asked by Talhamirza45
Which statement is true about alkali metals? A. Some of them explode when exposed to water. B. They are not conductors of heat or electricity. C. They are not very reactive. D. They are in group 18 of the periodic table
Weegy: Some of them explode when exposed to water.- is true about alkali metals User: Which of the following is a characteristic of most non-metals and is not a characteristic of most metals? A. Has a negative charge when a current is run through its solution B. Replaces the hydrogen in acids to form stable compounds C. Can conduct electricity and heat D. Is malleable and ductile Weegy: Has a negative charge when a current is run through its solution. -is a characteristic of most non-metals and is not a characteristic of most metals. (More)
Question|Asked by Talhamirza45
Expert Answered
Asked 2/24/2019 4:14:38 PM
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The purpose of an indicator is to A. conduct electricity. B. make a solution more neutral. C. test and determine the pH values of unknown solutions. D. help acids and bases dissociate when placed in water.
Weegy: The purpose of an indicator is to test and determine the pH values of unknown solutions. User: The statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of A. conservation of matter. B. conservation of energy. C. definite proportions. D. atomic disintegration. Weegy: The statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of: conservation of energy. [ ] User: Regarding the formula Al2O3 which of the following is accurate? A. The coefficient 3 indicates that there are a total of three atoms of oxygen present in the substance. B. The subscript 2 indicates that two atoms of oxygen are present in the substance. C. The chemical symbol Al indicates that oxygen is present in the substance. D. The subscript 2 indicates that two atoms of aluminum are present in the substance. Weegy: The subscript 2 indicates that two atoms of aluminum are present in the substance. -is accurate regarding the formula Al2O3. (More)
Question|Asked by Talhamirza45
Expert Answered
Asked 2/24/2019 4:21:57 PM
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Which of the following is one way to prevent the corrosion of iron? A. Paint exposed iron parts with protective paint. B. Let the iron develop a natural coat of carbonate. C. Add carbon to the iron. D. Protect the iron from polluted air.
Weegy: Paint exposed iron parts with protective paint is one way to prevent the corrosion of iron. User: Based upon the pH scale, a vegetable with a pH of 5.3 would be A. neutral. B. ionic. C. basic. D. acidic. Weegy: Based upon the pH scale, a vegetable with a pH of 5.3 would be acidic. (More)
Question|Asked by Talhamirza45
Updated 9/3/2019 2:58:06 AM
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Which of the following objects uses two converging lenses to produce two images, the second of which is virtual, magnified, and inverted? A. Compound microscope B. Corrective eyeglasses C. Slide projector D. Camera
Weegy: Compound microscope uses two converging lenses to produce two images, the second of which is virtual, magnified, and inverted. (More)
Question|Asked by Talhamirza45
Expert Answered
Updated 9/2/2019 7:42:22 AM
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Which, if any, of these mirrors can produce a real image? A. No mirrors can produce a real image. B. Concave spherical C. Plane D. Convex spherica
Weegy: Concave spherical mirrors can produce a real image. User: A ray at which angle would produce the most glare? A. 70 degrees B. 59 degrees C. 37 degrees D. 25 degrees Weegy: A ray at 70 degrees angle would produce the most glare. (More)
Question|Asked by Talhamirza45
Expert Answered
Asked 2/24/2019 5:13:19 PM
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