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Gala2k [10]
4 years ago
13

Which of the following chemical compounds contains two hydrogen atoms in every molecule?

Chemistry
1 answer:
mina [271]4 years ago
7 0

Answer:

A. Water

Explanation:

H2O means that there are two hydrogen and one oxygen in every water molecule.

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Which of the following describes the sharing of a nonbonding electron pair on a nitrogen molecule with an oxygen atom, resulting
Gala2k [10]
This is coordinate (dative) bonding where the nitrogen atom donates 2 electrons to the oxygen but is still chemically bonded.
5 0
3 years ago
Give an example of a homogeneous mixture and an example of a heterogeneous mixture.
natta225 [31]

Answer:

Homogeneous: 1 phase, heterogeneous 2 or + phases

Explanation:

Homogeneous mixture: water + vinegar

                                        water + ethyl alcohol

Heterogeneous mixture: water + oil.

6 0
4 years ago
Read 2 more answers
Why does neon have a smaller atomic radius than lithium?
ladessa [460]
Neon has a smaller atomic radius do it having less of an electron shield. Also the more protons an element has the tighter it is held together making it smaller.
4 0
3 years ago
Who developed the first scientific atomic theory?
Annette [7]

Answer:

John Dalton

Explanation:

John Dalton (1766-1844) is the scientist credited for proposing the atomic theory. This theory explains several concepts that are relevant in the observable world.

7 0
2 years ago
Calculate the wavelength of an electron (m = 9.11 x 10-28 g) moving at 3.66 x 100 m/s. A) 1.81 x 10-10 m B) 2.76 x 10-9 m C) 5.0
inna [77]

Answer:

option e = 1.99 × 10⁻⁶ m

Explanation:

Given data:

Mass of electron = 9.11 × 10⁻²⁸ g   or 9.11 × 10⁻³¹ Kg

Velocity = 3.66 × 100 m/s

Wavelength = ?

Solution:

Formula:

λ  = h / m. v

λ  = wavelength

h = planck's constant

m = mass

v = velocity

Now we will put the values in equation

λ  = h / m. v

λ  =  6.63 × 10⁻³⁴ Kg. m²/s  / 3.66 × 100 m/s . 9.11 × 10⁻³¹ Kg

λ  =  6.63 × 10⁻³⁴ Kg. m²/s / 3334.26  × 10⁻³¹ Kg .m/s

λ  = 1.99 × 10⁻⁶ m

7 0
3 years ago
Read 2 more answers
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