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Which of the following is a physical property of water? A. Water has a pH of 7. B. Water is not flammable. C. Water reacts with sodium. D. Water is a liquid at room temperature.
Question|Asked by chantie04
Asked 7/15/2016 7:27:10 AM
Updated 7/15/2016 8:11:42 AM
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Confirmed by jeifunk [7/15/2016 8:11:42 AM]
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User: Which of the following is a physical property of water? A. Water has a pH of 7. B. Water is not flammable. C. Water reacts with sodium. D. Water is a liquid at room temperature.

Weegy: Water is a liquid at room temperature is a physical property of water.


User: Which of the following is always true when a substance undergoes a physical change? A. the composition changes B. a change in color occurs C. no new substance is formed D. its specific gravity remains the same

Question|Asked by chantie04
Asked 7/15/2016 7:27:10 AM
Updated 7/15/2016 8:11:42 AM
0 Answers/Comments
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [7/15/2016 8:11:42 AM]
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Questions asked by chantie04
Exit What makes simple machines useful for people without enough strength to complete a task? A. Work is reduced, while time is decreased. B. Input force is reduced, while time is increased. C. Power is increased, while distance is decreased. D. Input force is reduced, while distance is increased.
Question|Asked by chantie04
Updated 11/4/2016 4:39:58 AM
1 Answer/Comment
Work is reduced, while time is decreased makes simple machines useful for people without enough strength to complete a task.
Added 11/4/2016 4:39:58 AM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [11/4/2016 12:13:46 PM]
Which characteristic of an acid is the basis of the scientific definition of acidity? A. its ability to change the color of litmus paper to red B. its ability to produce hydrogen ions in water C. its ability to corrode metals D. its ability to taste sour
Weegy: Its the ability to change the color of litmus paper to red s the basis of the scientific definition of acidity. User: Which compound is a base? A. soap B. vinegar C. sour milk D. lemon juice Weegy: Soap is a base. User: Hydrochloric acid (HCl) and sodium hydroxide (NaOH) will react to form which two compounds? (More)
Question|Asked by chantie04
Updated 7/13/2016 6:34:50 PM
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What type of substance is a catalyst? A. always a gas B. always a liquid C. always a powder D. A catalyst can be in many forms.
Weegy: A catalyst can be in many forms. User: Which increases the rate of a chemical reaction? A. a catalyst B. a higher volume C. a lower pressure D. a lower temperature Weegy: A CATALYST increases the rate of a chemical reaction. (More)
Question|Asked by chantie04
Updated 7/19/2016 7:28:46 AM
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The first vertebrates appeared in which period? A. Cambrian B. Ordovician C. Silurian D. Devonian
Weegy: The first vertebrates appeared in Cambrian period. User: The Great Ice Age occurred during the _____ epoch. This was also the time of the woolly mammoth and the saber-toothed cat. A. Eocene B. Miocene C. Paleocene D. Pleistocene Weegy: The Great Ice Age occurred during the Pleistocene epoch. This was also the time of the woolly mammoth and the saber-toothed cat. User: The _____ period marked the completion of Pangaea's breakup and was concluded by a mass extinction event. A. Permian B. Tertiary C. Jurassic D. Cretaceous Weegy: The Cretaceous period marked the completion of Pangaea's breakup and was concluded by a mass extinction event. (More)
Question|Asked by chantie04
Updated 7/8/2016 1:08:51 PM
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Which of the following waves are mechanical? A. ocean waves B. light waves C. radio waves D. microwaves
Weegy: Ocean waves are mechanical waves. User: The science class at Thoraya's high school is performing an experiment. They have placed a bell and a microphone inside a glass jar. Then they pumped all of the air out of the jar. With all of the air removed, Thoraya's class can no longer hear the bell ringing. Why is this? A. Electricity will not flow to the microphone in a vacuum. B. Sound requires a medium to travel through. C. The frequency has become too high. D. The bell has stopped vibrating. (More)
Question|Asked by chantie04
Expert Answered
Updated 7/8/2016 11:54:14 AM
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