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Hunter-Best [27]
3 years ago
15

You can measure length with the greatest precision using a tape measure marked in _____.

Chemistry
2 answers:
Helen [10]3 years ago
5 0
You can measure length wiht the greatest preciaion using a tape measure marked in milimeters.

Answer: C. milimeters.
Greeley [361]3 years ago
5 0

Answer:

The answer is C

Explanation:

Precision generally means been accurate (and can be loosely interpreted to mean been exact). Length is averagely measured in meters. However, in order to get the actual length of a substance using a tape, millimeters give the most accurate length (of all the options) as it provides the length to the smallest details (of all the options provided). The illustration below shows the relationship between millimeters and the rest of the options.

while 1 kilometer = 1000 meters

          1 meter = 100 centimeters

          1 centimeter = 10 millimeters

From the relationship above, millimeters is clearly the most precise of all the options provided.

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Write an equation for the reaction that takes place during the laboratory preparation of dry hydrogen​
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Answer:

Zn+2HCl→ZnCl2+H2

Explanation:

Hydrogen gas is prepared in the laboratory by reacting dilute HCl with granulated zinc.

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3 years ago
What happens when the temperature or pressure of a reaction system at equilibrium is altered? The equilibrium state is unable to
alina1380 [7]

Answer: The system will try and offset the change.

Explanation: Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in a direction to minimize the effect.

Thus if temperature is increased, the reaction will shift in a direction where temperature is decreasing and vice versa. Similarly if pressure is increased, the reaction will shift in a direction where pressure is decreasing and vice versa.

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The lungs are covered with a thin layer called ________​
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interstitium

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2 years ago
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3 years ago
Which sentence describes two atoms that form an ionic bond?
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Answer:

The correct answer is "D. The difference in their electronegativities is greater than 1.7"

Explanation:

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So, this type of bond consists of the attraction of atoms with electric charges of different signs, that is, the bond is established when atoms of low electronegative elements (metals) are bonded with atoms of highly electronegative elements (nonmetals).

So you can say that atoms of electronegativity difference equal to or greater than 1.7 participate in this type of bond (with its exceptions).

<u><em>The correct answer is "D. The difference in their electronegativities is greater than 1.7"</em></u>

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