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Dominik [7]
2 years ago
7

How much heat must absorbed by the reaction system to convert 100g of NaNO3 into NaHSO4(s)?

Chemistry
1 answer:
Alex787 [66]2 years ago
6 0

Answer:

about 4.8kJ

Explanation:

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According to the bohr model of the atom, where can atoms exist? where will they ot exist
Inga [223]
At least, that's what Bohr<span> decided, and that's why he proposed the </span>existence<span> of the</span>atomic<span> energy level. </span>According<span> to </span>Bohr<span>, the electrons in an </span>atom<span> were only allowed to </span>exist<span> at certain energy levels</span>
6 0
3 years ago
A cylinder of compressed gas has a volume of 350 ml and a pressure of 931 torr. What volume in Liters would the gas occupy if al
hodyreva [135]

Answer:

0.384\ \text{L}

Explanation:

P_1 = Initial pressure = 931 torr = 931\times \dfrac{101.325}{760}=124.12\ \text{kPa}

P_2 = Final pressure = 113 kPa

V_1 = Initial volume = 350 mL

V_2 = Final volume

From the Boyle's law we have

P_1V_1=P_2V_2\\\Rightarrow V_2=\dfrac{P_1V_1}{P_2}\\\Rightarrow V_2=\dfrac{124.12\times 350}{113}\\\Rightarrow V_2=384.44\ \text{mL}=0.384\ \text{L}

The volume the gas would occupy is 0.384\ \text{L}.

3 0
2 years ago
In The Lord of the Rings, Frodo and Sam use a rope to rappel down a cliff. The rope was 30 ells long. How high was the cliff in
Tcecarenko [31]

Answer:

324 meters

Explanation:

I don't really have an explanation

7 0
3 years ago
An atom has a mass number of 43 and an<br> atomic number of 23. How many protons<br> does it have?
Airida [17]

Answer:

23

Explanation:

8 0
3 years ago
Most continuous spectra are examples of what we also call thermal radiation spectra. Why do we call them "thermal" spectra?
lisov135 [29]

Answer:

They are emitted from heated objects

Explanation:

When objects are heated, they emit light at all wavelengths thereby forming a continuous spectrum. Electromagnetic radiation of all wavelengths and colours are usually represented in such spectrum. A thermal spectrum is quite a simple spectrum since it depends on temperature.

7 0
2 years ago
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