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Usimov [2.4K]
3 years ago
15

What is the chemical bond between mg and p?

Chemistry
1 answer:
masya89 [10]3 years ago
6 0

Answer:

Electronegativity

Explanation:

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Mass in grams of 4.26 mol Si
Whitepunk [10]

Answer:

119.28g

Explanation:

Data obtained from the question include:

Number of mole of Si = 4.26 mol

Molar Mass of Si = 28g/mol

Mass of Si =?

Number of mole = Mass /Molar Mass

Mass = number of mole x molar Mass

Mass of Si = 4.26 x 28

Mass of Si = 119.28g

6 0
4 years ago
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< Practice Questions for Midterm 2 - Part 1 (Not Timed)
Sav [38]

Answer: not helpin someone cheat

Explanation:

is this a test homie cuz if it is i cant help sorry

3 0
3 years ago
What property of an element does the group number identify in a numbering system that uses "A" and "B"?
VMariaS [17]
<span>The number of valence electrons. :) have a good day </span>
8 0
3 years ago
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A green laser pointer emits light with a wavelength of 542 nm. What is the frequency of this light?
ehidna [41]
As we know that wavelength and frequency is inversely proportional to each other. Greater the wavelength smaller the frequency and vice versa.
 
Solution:


The relation between wavelength and frequency is as follow,

υ = c / λ

where
            υ = frequency = ?
            c = velocity of light = 3.0 × 10⁸ ms⁻¹
            λ = wavenumber = 542 nm = 542 × 10⁻⁹ m
Putting the given values,
    
            υ = 3.0 × 10⁸ ms⁻¹ / 542 × 10⁻⁹ m
Result:
            υ = 5.53 × 10¹⁴ s⁻¹
6 0
3 years ago
Which of the following would lose heat the fastest?
Molodets [167]

Answer:

15 grams of water

Explanation:

15 grams of water of water would lose heat the faster compared to higher masses of water.

Water generally is a poor conductor heat.

  • To heat up a unit of water, significant amount of energy must be added to the body of water.
  • With time, the body continues to increase in temperature.
  • A 500g mass of water will take more time to lose heat.
5 0
3 years ago
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