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Tom [10]
3 years ago
9

How hot Will a 2.3L balloon have to get to expand to a volume of 250L?

Chemistry
1 answer:
KIM [24]3 years ago
5 0

it never will, it will pop

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I need simple answers that a 14-year-old would understand.
Nana76 [90]

Answer:

1. The Nummber of electrons present in the outermost shell is called Valence electrons.

2. Thomson model:

Thomson model of atom is the model which states that electrons are embedded in a positively charged solid material which is spherical in shape.

Rutherford model

Rutherford model of atom is the model which explains that there is a nucleus in the center of the atom and electrons are located around the nucleus.

3. Relative atomic mass. Atoms have very little mass , so they're difficult to measure accurately. Instead, chemists use a scale. On this scale the mass of a 12C atom is exactly 12.

4. Difference between Alpha, Beta and Gamma radioactive decay:

Alpha decay forms new element with two fewer protons and two fewer neutrons;

Beta decay forms new element with one more proton and one fewer neutron.

Gamma decay forms NO new element, but now the element has less energy because energy is released as gamma rays.

Gamma radiation has the highest penetration power, Beta decay goes the second, alpha decay the last. However, alpha particles make the most damage even if it has the lowest penetration power among the three.

5. This species has a 2− charge on it, so it is an anion. Anions are named using the stem of the element name with the suffix -ide added. This is the oxide anion.

Hope it helps....Pls Mark as Brainliest!! I Have answered all your question in the Simplest way i could...

4 0
3 years ago
write down the name and molecular formula of the compound which gives hydrogen ion and chloride ion in the solution state. ​
Reptile [31]

Answer:

Hydochloric acid

HCl

Explanation:

Hydrochloric acid is an acid and ionizes to form hydrogen and chloride ions.

The name of the compound that gives hydrogen ion and chloride ions in the solution state is Hydrochloric acid.

Hydrochloric acid is made up of one atom of hydrogen and 1 atom of chlorine. We can also say, it is made up of 1 mole of hydrogen and 1 mole of chlorine.

 The formula of this compound is HCl;

 In solution:

               HCl_{aq}    →   H⁺    +    Cl⁻  

3 0
3 years ago
Calculate the heat (in calories) released when 115 g of CHCl3 changes from a liquid to a solid at
Alexandra [31]

Answer:  8855 Joules energy is released when 115 g of CHCl_3 changes from a liquid to a solid at  its freezing point.

Explanation:

Latent heat of freezing is the amount of heat released to convert 1 mole of  liquid to solid at atmospheric pressure.

Amount of heat released to freeze 1 gram of CHCl_3 = 77 J/g

Mass of CHCl_3 given = 115 gram

Heat released when 1 g of CHCl_3 is freezed = 77 J

Thus Heat released when 115 g of CHCl_3 is freezed =\frac{77}{1}\times 115=8855J

Thus 8855 Joules energy is released when 115 g of CHCl_3 changes from a liquid to a solid at  its freezing point.

4 0
3 years ago
1. How many moles of iron is needed to react with sulfur in order to produce 8.6 moles
AleksAgata [21]

Answer:

17.2 moles of Iron are required

Explanation:

Based on the chemical reaction:

2Fe + 3S → Fe₂S₃

<em>2 moles of Fe react with 3 moles of S to produce 1 mole of Iron (III) sulfide</em>

<em />

Assuming and excess of sulfur, if we want to obtain 8.6 moles of Fe₂S₃ are required:

8.6 moles Fe₂S₃ * (2 moles Fe / 1mol Fe₂S₃) =

<h3>17.2 moles of Iron are required</h3>
7 0
3 years ago
Write a detailed paragraph about how a volcano is formed. be sure to
victus00 [196]

Answer:

okay but give me brainliest

Explanation:

A volcano is formed when hot molten rock, ash and gases escape from an opening in the Earth's surface. The molten rock and ash solidify as they cool, forming the distinctive volcano shape shown here. As a volcano erupts, it spills lava that flows downslope. Volcanic flows are called lahars.

7 0
3 years ago
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