3 years ago

I need help with this problem for chemistry

1 answer:

3 0

Because the crown displaced less water, meaning is was less dense, while solid gold would displace more water because it's more dense, so the crown was clearly made of a different material

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The average human lives 74 years. how many seconds is this? write your answer in scientific notation

Leviafan [203]

Number of second in human lives in scientific notation is 3.9 × 10⁷ second

Given that;

Average human lives = 74 years

Find:

Number of second in human lives in scientific notation

Computation:

Number of second in human lives in scientific notation = 74 × 365 × 24 × 60

Number of second in human lives in scientific notation = 38,894,400

Number of second in human lives in scientific notation = 3.9 × 10⁷ second

Learn more:

brainly.com/question/3712546?referrer=searchResults

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3 years ago

How many atoms are in Sodium, Carbon, Hydrogen, Oxygen, Fluorine, Boron, Lithium, Helium, Phosphorus and Sulfur?

vlada-n [284]

Sodium. 11
Carbon. 12
Hydrogen 1
Oxygen 2
Fluuorine. 14
Boron. 5
Lithium. 6
Helium 3
Phosphorus 15
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3 years ago

There are 24 hours in a day, 60 minutes in an hour, 7 days in a week, and 4 weeks in a month? using these conversions how many m

Serggg [28]

Explanation:

From your information above, assume 1 month is 28 days

1 days=24hours ; 28 days=672 hours (just multiply 1 days with 28)

1 hour=60minutes ; 672 hours=40,320 minutes

.. 1 month=40,320 minutes

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2 years ago

Which is the formula for dinitrogen pentoxide?

nadya68 [22]

Answer:

N2O5

Explanation:

IUPAC ID: Dinitrogen pentoxide

Molar mass: 108.01 g/mol

Density: 1.64 g/cm³

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2 years ago

What are the three parts of the cell theory?

tamaranim1 [39]

First cell theory. All living things are composed of cells.
Second cell theory. Cells are the basic unit of structure and function in living things.
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