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nata0808 [166]
3 years ago
10

Tides are the rise and fall of surface levels of Earth's ocean water caused by the gravitational effects of which two celestial

objects?
A)stars and planets
B)comets and meteors
C)earthquakes and volcanoes
D)moon and sun
Chemistry
2 answers:
aliina [53]3 years ago
7 0
D) Moon and sun causes the rise and fall of tides
NeTakaya3 years ago
4 0

Answer:

<h3>D)Moon and sun</h3>

Explanation:

Because the gravitational pull of the moon is weaker on the far side of the Earth, inertia wins, the ocean bulges out and high tide occurs.

hope it helps:)

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A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in mmHg
bulgar [2K]

Answer:

  1140 mmHg

Explanation:

1 atmosphere is 760 mmHg, so 1.5 atmospheres is ...

  1.5×760 mmHg = 1140 mmHg

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Bridget is in science class. Her teacher gives her two unknown substances and asks her to determine their relative pH. She place
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What are the symptoms of high alkaline phosphatase?
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Itching.

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hope this helps

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5 0
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Explain how two two parents with brown skin could have a child with dark brown skin and anotherchild with light brown skin
Ilya [14]

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6 0
4 years ago
A 515cm^3 flask contains 0.460 g of a gas at a pressure of 153 kPa and a temperature of 322K. What is the molecular mass of this
erastovalidia [21]

Answer:

Molecular mass, M=28.89\ \text{g/mol}

Explanation:

Given that,

Mass of gas, m = 0.46 g

Volume of the container, V = 515 cm^3

Pressure, P = 153 kPa

Temperature, T = 322 K

We need to find the molecular mass of this gas. We know that,

PV =nRT

n = no of moles

n=\dfrac{PV}{RT}\\\\n=\dfrac{153\ kPa\times 0.515\ L}{8.31447\ LkPaK^{-1}{mol^{-1}}\times (322+273)\ K }\\\\n=0.01592\ \text{moles}

No of moles = mass/molecular mass

Let molecular mass is M

M=\dfrac{m}{n}\\\\M=\dfrac{0.46}{0.01592}\\\\M=28.89\ \text{g/mol}

So, the molecular mass of this gas is 28.89\ \text{g/mol}

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