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ehidna [41]
3 years ago
14

In a physical change the make up of matter is changed. O True O False

Chemistry
1 answer:
n200080 [17]3 years ago
6 0

Answer:

yes it is true

Explanation:

evaporation occurs when burning liquid water changes into gas.

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How do you determine the group and period of an element based on its electron configuration?
il63 [147K]

Answer:

If you are given with the atomic number of an element you can find it's period number and group number. The period number is related to the number of electron occupied shells in the element and the period number is linked to its valence electrons.

Explanation:

hope it helps luv <3

4 0
2 years ago
Craig needs to organize, analyze, and interpret large amounts of quantitative data that he generated during an experiment. Which
notsponge [240]

Answer:

C. a computer

Explanation:

Quantitative data are measures of values or counts and are expressed as numbers. The best tool out of all shown to deal with a large amount of numerical data is a computer

4 0
2 years ago
The following table lists the speed of sound in various materials. Use this table to answer the question.
Lynna [10]

Answer: Time taken by a sound impulse to travel through an aluminum rod 25 kilometers long is 4.9 seconds.

Solution:

Length of aluminium rod = 25 km = 25000 m (1 km=1000 m)

Time taken by sound to travel through aluminium = 5100 m/s (from the table given)

speed=\frac{distance}{time}=\frac{25000 m}{\text{time taken}}

time taken =\frac{distance}{speed}=\frac{25000 m}{5100 m/s}=4.9019 seconds\approx 4.9 seconds

Hence, the correct option is 4.9 seconds.

4 0
3 years ago
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What is colligative property? why does theproperty changes the way that it does when the amount of solute is increased. State an
elena-14-01-66 [18.8K]

Colligative properties are those substances that depend on the number of substances in the solution, not in the identity of that substance. The property changes the way that it does when the amount of solute is increased because it enables the solute to be scattered more. For example, the freezing point of salt water is lower than that of the pure water due to the salt ions present in water.

6 0
3 years ago
In a water molecule, what type of bond forms between the oxygen and hydrogen atoms
goldenfox [79]
Covalent bond forms between the oxygen and hydrogen atoms.

(I attached a picture that could help)

-Hope that helps,
Good luck!

7 0
2 years ago
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