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ArbitrLikvidat [17]
2 years ago
10

In the Rutherford nuclear-atom model, ________.

Chemistry
1 answer:
max2010maxim [7]2 years ago
3 0
A, the protons and neutrons are heavier than electrons. The electrons orbit the nucleus, and have negligible mass.
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2000 km/sec. Convert that to<br> m/sec.
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Answer:

2000 km/sec

1km=1000m

2000×1000

2000,000 m/sec

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If the chemical properties of a substance remain unchanged and the appearance or shape of an substance changes it is called a
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B

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What is the molar mass of a sample of gas that has a density of 2.85g/L at 101kPa pressure
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Heat capacity is a measure of the heat required to
Anna007 [38]

Answer: Correct answer is D) Raise the temperature of 1 gram of a substance by 1 degree.

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6 0
3 years ago
Suppose 870.mmol of electrons must be transported from one side of an electrochemical cell to another in 84. seconds. Calculate
-BARSIC- [3]

Answer:

The size of an electric current that must flow is 999.18 Ampere.

Explanation:

Moles of electrons passed, n = 870. mmol= 0.870 mol

1 mmol = 0.001 mol

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Duration of time in which N electrons were passed = T = 84. seconds

Amount of current passes = I

I=\frac{Q}{T}

I=\frac{1.602\times 10^{-19} C\times N}{84. s}

=\frac{1.602\times 10^{-19} C\times 0.870\times 6.022\times 10^{23}}{84. s}

I = 999.18 Ampere

The size of an electric current that must flow is 999.18 Ampere.

7 0
4 years ago
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