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photoshop1234 [79]
4 years ago
10

For the following nuclear reaction, what was the beginning radionuclide (X)? X → 86Rn222 + 2He4

Chemistry
1 answer:
BigorU [14]4 years ago
3 0
The original radioisotope underwent double-alpha decay, where the original nucleus lost a total of 4 protons and 4 neutrons.

The original radioisotope would have an atomic number of 86+4 (protons), and would have an atomic mass of 222+8 (protons + neutrons). This would make the element Thorium-230, or 90Th230.
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Explain why NO is more soluble in water than either N2 or O2. Fill in the following blanks.
jek_recluse [69]

Answer:

a. Larger molecular size

b. Ability to react with water

c. Polarity

d. Shorter bond length

Explanation:

Ethene is a larger molecule than oxygen and nitrogen hence it is more soluble than the both other gases .

SO2 dissolves readily in water to yield an acid solution. It is an acid anhydride.

Nitric oxide is a polar compound. It remains very much polar while nitrogen and oxygen are non polar.

Nitrogen is sp hybrized, this leads to a very short bond and does not easily interact with oxygen and nitrogen

3 0
3 years ago
Explain the ingredients of ice-cream, the state and why the state in which it is sold is important​
Eva8 [605]

Answer:

Go on the site named " the chemistry of ice cream ''

Explanation:

https://davidson.weizmann.ac.il/en/online/sciencepanorama/chemistry-ice-cream

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2 years ago
Drinking water should have sufficiently low levels of __________ to prevent disease. What is the missing word in this sentence?
ELEN [110]
For water to be drinkable, it must have sufficiently low levels of dissolved salts and microbes.
3 0
3 years ago
A Gas OCCUPIES 525ML AT A PRESSURE OF 85.0 kPa WHAT WOULD THE VOLUME OF THE GAS BE AT THE PRESSURE OF 65.0 kPa
german

Boyle's law of ideal gas: This law states that the volume of a gas is inversely proportional to its pressure at a constant temperature. Acc to this law we can write the relation of pressure and volume as:

PV=Constant

That means:

P_{1}V_{1}=P_{2}V_{2}

From that equation we can calculate Volume of gas at a certain pressure:

P₁=Initial pressure

V₁=Initial volume

P₂=Final pressure

V₂= Final volume

Here P₁, initial pressure is given as 85.0 kPa

V₁, initial volume is given as 525 mL

P₂, final pressure is 65.0 kPa

P_{1}V_{1}=P_{2}V_{2}

so,

V_{2}=85\times 525\div 65

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Volume of gas will be 686 mL.

8 0
3 years ago
Read 2 more answers
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A chemical change that could happen at school would be when you have a chemistry experiment and you mix an acid and a base such as mixing hydrochloric acid with sodium hydroxide.

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A chemical change that happens in nature could be a forest fire. The burning of wood would be the chemical change in this case.

6 0
4 years ago
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