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lara [203]
2 years ago
11

Practice It! Which statement below is not a testable question? O How do you measure volume of an irregular shaped object? O Whic

h chocolate melts fastest, dark or milk chocolate? O Do ants prefer sugar or salt? O Does mass affect how far a ball rolls?​
Chemistry
1 answer:
Alex Ar [27]2 years ago
8 0

The statement "Does mass affect how far a ball rolls?" is not a testable question as mass doesn't affect the speed directly.

<h3>How do you measure the volume of an irregular shaped object?</h3>

When a solid object, like a stone, has an irregular shape, its volume can be determined by two methods. Measuring cylinder can be used as one method while using an overflow jar is another method.

Displacement of water or other liquids in a measuring cylinder determines the volume of irregular solid things that are heavier or lighter than water, including those that are soluble in water.

<h3 /><h3>Which chocolate melts fastest, dark or milk chocolate?</h3>

Milk chocolate takes longer to melt than dark chocolate.

Because dark chocolate has less fat than milk chocolate. Dark chocolate melts more quickly because the cocoa butter in it is crushed more finely.

More milk solids are found in milk chocolate, which raises the chocolate's melting point and increases its resistance to melting.

<h3>Do ants prefer sugar or salt?</h3>

The researchers found that herbivorous or omnivorous species that were more than 10-100 kilometers (6-60 miles) from the ocean preferred salt over sugar.

They found out that the farther inland, the greater the preference for salt, by simply counting the ant species attracted to cotton balls soaked in sucrose (table sugar) or salt solutions.

While carnivorous ants showed little preference for salt over sugar, those that lived primarily on green plants showed a larger preference for salt than those that lived among the decomposing leaves of the forest floor.

Thus, all the other statements are testable except "Does mass affect how far a ball rolls?" as mass doesn't affect the speed directly, and hence we can't test it by a simple ball rolling experiment.

Learn more about mass:

brainly.com/question/19385703

#SPJ9

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Differentiate between Mendeleev's Period law and Modern Periodic law<br>​
NeX [460]
<h2>see in the attachment hope it helps you</h2>

7 0
3 years ago
4. What is the percent by mass of tungsten in the calcium tungstate compound CaWO3, commonly
MA_775_DIABLO [31]

Answer: 67.4%

Explanation:

Ca 40.8

W. 183.8

O. 16.00

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3 0
3 years ago
A steel cylinder has a pressure of 550 torr at 177 degrees Celsius. What will be the pressure if the temperature is decreased by
Schach [20]

Answer:

P_2=507.7torr

Explanation:

Hello there!

In this case, when we have a gas that is undergoing a change in both pressure and temperature, we utilize the Gay-Lussac's equation as shown below:

\frac{T_2}{P_2}=\frac{T_1}{P_1}

Thus, since we are given the initial pressure and temperature and the final temperature, we can compute the final pressure as shown below:

P_2=\frac{P_1}{T_1}*T_2

So we plug in, by making sure the temperatures are in kelvins, to obtain:

P_2=\frac{550torr}{(117+273)K}*(87+273)K\\\\P_2=507.7torr

Best regards!

8 0
3 years ago
Which are the correct statements (image)
liq [111]

Answer:

a

Explanation:

3 0
4 years ago
What must be true about two objects if heat is flowing between them?
Degger [83]

The objects may exchange heat between each other if they are in contact with each other.

The two objects will allow flow of heat between them if they have a difference in temperature from each other.

The heat will flow from higher temperature object to lower temperature object. The will reach a final temperature (common to each other) and then there will be no heat transfer between each other.

6 0
3 years ago
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