A cube measures 3.0 cm on each side and has a mass of 25g what is the density of the cube?

Answers

Answer 1

Answer: How do you find density?
Well, first D=m/v
D=density
M=mass
V=Volume

Volume of cube: 3*3*3=9cm cubed
Mass of cube: 25g
D=25g/9cm cubed
2.8 g/cm cubed is the answer.

Hope this helps!

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How do we know that caramelizing sugar is a chemical change ?

Answers

Chemical transformation: it's all transformation changes the composition of matter, i.e. that matter produces a new substance with different initial properties burning sugar to make caramel, we cannot retrieve the initial sugar.

hope this helps!

An experiment applies heat to a substance and produces a gas that is a new and different substance. Choose the true statement.A. This represents a physical change only.
B. This represents a chemical change only.
C. This represents both a physical and a chemical change.
D. This represents neither a physical change nor a chemical change.

Answers

I believe it is C; reasoning being that the hint for physical change is," the producing of a gas," chemical "that's new and diff. substance. "

True or false: the Precision of a calculated answer is limited by the least precise measurement used in the calculation

Answers

The Precision of a calculated answer is limited by the least precise measurement used in the calculation is false.

what is Precision?

If the average value of different measurements is similar to the correct value of the measurement is said to be accurate and if the value of different measurements is close to each other then it is said to be precise.

The everage value of the different measurements may or not may be the same as exact and the resultant values must be the same as the calculated value for the precision of the result.

Therefore, the Precision of a calculated answer is limited by the least precise measurement used in the calculation is false.

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the precision of calculated answer is limited by the least precise measurement used in calculation

1. When a metal and a(n) ___ bond, they do not share electrons. 2. The ___ atom transfers one or more valence electrons to the ____ atom, forming a chemically stable compound. 3. A(n) ___ is an atom that is no longer electrically neutral because it has lost or gained one or more valence electrons. a. An atom that loses one or more valence electrons becomes an ion with a(n) ___ charge.

Answers

Answer:

1 . Nonmetal

2. metal, non metal

3. Ion

4. positive

A car traveled at an average speed of 60 mph for two hours. How far did it travel? A.
30 miles

B.
60 miles

C.
120 miles

D.
150 miles
i need help and please answer

Answers

C-120 hope this helps

C.) Average speed = total distance/total time. Total time= avg speed x time = 60x2 = 120miles.

Which of the following would be an example of applied science?

Answers

Answer:

Applied science is generally engineering, which develops technology, although there might be dialogue between basic science and applied science (research and development). Medical sciences such as medical microbiology are examples of applied sciences.

Explanation:

Other Questions

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Which of these statements best explains how fossil records provide evidence to the scientific theory of evolution?A.They show how natural selection happened on Earth by chance. B.They show how organisms choose to adapt to changing Earth conditions. C.They prove that structure and location of remains of organisms depict past events. D.They prove that natural selection always leads to greater complexity in organisms. z

When the pressure that a gas exertson a sealed container changes from atm to 1.80 atm, the temperature changes from 86.0°C to 30.0°C.

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