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Mademuasel [1]
3 years ago
15

Complete the table to summarize the properties of the different subatomic particles. Type in your answers.

Chemistry
2 answers:
Aloiza [94]3 years ago
4 0

<h2>Complete the table to summarize the properties of the different subatomic particles. </h2>

Explanation:

Atom

It is a smallest particle which cant exist independently.

According To Dalton, atom was indivisible but later on, it was proved that atom can be subdivided into sub atomic particles called electron, proton & neutron.

These subatomic particles have marked properties .

Proton

  • It was discovered by E.Goldstein .
  • It is positively charged particle
  • It is present in nucleus .
  • Its mass is equal to 1.6726219 × 10⁻²⁷ kilograms

Neutron

  • It was discovered by E.chadwick .
  • It is neutral
  • It is present inside the nucleus .
  • It's mass is equal to 1.674927471×10⁻²⁷ kg

Electron

  • It was discovered by J.J Thomson .
  • It has negative charge .
  • It's mass is equal to 9.10938356 × 10⁻³¹ kilograms
  • It is present outside the nucleus in shells .
natulia [17]3 years ago
3 0

A: 1

B: 1

C: 0.0006

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When C2H4(g) reacts with H2O(g) to form CH3CH2OH(g) according to the following equation, energy is released into the surrounding
kirill [66]

Answer:

Exothermic

General Formulas and Concepts:

<u>Chemistry</u>

<u>Thermodynamics</u>

  • Exothermic - releases heat as a product
  • Endothermic - absorbs heat as a reactant

Explanation:

We are given that the reaction takes place between C₂H₄ (g) and H₂O (g) to form CH₃CH₂OH (g) and is <em>releasing heat</em>.

This means that heat would be product as it is being released during the reaction.

Therefore, we have an exothermic reaction.

3 0
3 years ago
How many grams of N2 gas are present in 1.13 L of gas at 2.09 atm and 291 K?
solong [7]

Answer:

Mass= 2.77g

Explanation:

Applying

P=2.09atm, V= 1.13L, R= 0.082, T= 291K, Mm of N2= 28

PV=nRT

NB

Moles(n) = m/M

PV=m/M×RT

m= PVM/RT

Substitute and Simplify

m= (2.09×1.13×28)/(0.082×291)

m= 2.77g

6 0
3 years ago
What is the molarity of a solution that contains 0.400 mol HCl in 9.79 l solution?
Maslowich

Answer:

  • Option B, 0.0409 M

Explanation:

<u>1) Data:</u>

a) M = ?

b) n = 0.400 mol

V = 9.79 liters

<u>2) Formula:</u>

  • M = n / V (in liters)

<u>3) Solution:</u>

  • M = 0.400 mol / 9.79 liter = 0.04086 M

  • Since each data contain 3 significant digits, the answer must be reported with 3 significant digits. So, the correct answer is 0.0409 M, which is the option B.
8 0
4 years ago
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Elden [556K]
The volume of the steel that is described above is obtained by water displacement method. This means that the volume can be calculated by subtracting the initial volume from the final volume. This will give us an answer of,
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6 0
3 years ago
Read 2 more answers
Consent bonds exist when combining atoms give up or accept electrons true or false
prohojiy [21]
I think the "consent bonds" in your question is means covalent bond. It is false. Covalent bond share the electrons between atoms while ionic bond give up or accept electrons.
3 0
3 years ago
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