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ankoles [38]
4 years ago
8

34 questions and 22 questions are right what is the percent error

Chemistry
1 answer:
Mumz [18]4 years ago
8 0
64.70% is the answer for your question
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PLEASE HELP, will mark brainlest
Shkiper50 [21]

The missing element  : ₇¹⁴N

<h3>Further explanation</h3>

Given

Reaction

₆¹⁴C ⇒X + ₋₁⁰e

Required

The missing element

Solution

Radioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,  

  • alpha α particles ₂He⁴
  • beta β ₋₁e⁰ particles
  • gamma particles ₀γ⁰
  • positron particles ₁e⁰
  • neutron ₀n¹

In a decay reaction, the sum of the mass number and atomic number before and after the decay is the same.

The element X :

Atomic number = 6 + 1 =7

Mass number = 14 + 0 = 14

6 0
3 years ago
Please match the correct type of reaction to its name.
HACTEHA [7]
1. Synthesis reaction

2. Decomposition reaction

3. Double replacement reaction

4. Combustion reaction

5. Single replacement reaction
4 0
3 years ago
How many moles of hydrogen are there in one mole of h2o?
Vinil7 [7]
A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms.
3 0
3 years ago
vinegar contains 5.0g of acetic acid, ch3cooh, in 100.0 ml of solution what is the molarity of acetic acid in vinegar
Lana71 [14]
Find number of moles and divide by volume to get molarity

3 0
4 years ago
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This reaction releases energy as heat. Explain whether it obeys the law of conservation of energy.
Anon25 [30]
The reaction that releases energy as heat is called an Exothermic reaction. This reaction does obey the law of conservation by preserving the energy present in the molecule and converting it to thermal heat to maintain it's from. Most reactions obey the law of conservation of energy.
4 0
4 years ago
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