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agasfer [191]
3 years ago
10

PLEASE HELP ASAP WILL GIVE BRAINLIEST

Chemistry
1 answer:
soldier1979 [14.2K]3 years ago
8 0

Answer:

X+ ion cation is smaller than neutral atom because when one or more electrons are lose by an atom it usually result in lose of shell.

And when electron is removed positive/ negative charged ratio increas which causes more effective nuclear charge.

The more effective nuclear charge the less its size.

Explanation:

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What is the change of energy where the wavelength is 4078 A
Leni [432]

The change of energy : 4.8744 x 10⁺¹⁹ J

<h3>Further explanation</h3>

Radiation energy is absorbed by photons

The energy in one photon can be formulated as

\large{\boxed{\bold{E\:=\:h\:.\:f}}}

Where

h = Planck's constant (6,626.10⁻³⁴ Js)

f = Frequency of electromagnetic waves

f = c / λ

c = speed of light

= 3.10⁸

λ = wavelength

The wavelength is 4078 A = 4.078 x 10⁺⁷ m

\tt E=h.\dfrac{c}{\lambda}\\\\E=6.626\times 10^{-34}\times \dfrac{3.10^8}{4.078\times 10^{-7}}\\\\E=4.8744\times 10^{-19}~J

3 0
2 years ago
__ CaSO4 + ____AIP --&gt; ____Ca3P2 + ____AI2(SO4)3
4vir4ik [10]

Answer:

4.89 mol

Explanation:

Step 1: Write the balanced equation

This is a double displacement reaction.

3 CaSO₄ + 2 AIP ⇒ Ca₃P₂ + AI₂(SO₄)₃

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of CaSO₄ to AlP is 3:2.

Step 3: Calculate the moles of AlP needed to react with 7.33 moles of CaSO₄

We will use the previously established molar ratio.

7.33 mol CaSO₄ × 2 mol AlP/3 mol CaSO₄ = 4.89 mol AlP

3 0
2 years ago
Calculate the density of a 0.845 m H2SO4 solution that has a molarity of 0.821 M.
Levart [38]
Woo rich toy slime bsksns
4 0
3 years ago
which two senses require that chemical compounds be dissolved in solution before they can act as stimulants for these senses?
DanielleElmas [232]

The two senses which is require in the chemical compounds be dissolved in solution before they can act as stimulants for these senses are smell and odour.

Stimulant for smell include molecules which are dissolved in the air gas easily, can be easily detected by the odour recepters which are located on the nostrils upon binding. The smell neurons transfer this information to the smell bulb which are located in the forebrain all the olfactory process occur.

The sensation of taste occur when our food is dissolved in the saliva secreted by the salivary gland located below the tongue. This food dissolved in saliva binds with the recepters of the tongue which are located on the taste buds of papillae.

Thus, we concluded that the two senses which is require in the chemical compounds be dissolved in solution before they can act as stimulants for these senses are smell and odour.

learn more about Chemical compound:

brainly.com/question/26487468

#SPJ4

3 0
1 year ago
Which compound will be the most soluble in water?<br><br> CH3CH2CH2CH2CH3
Leokris [45]

Answer:

CH3CH2CH2CH2OHB.....

5 0
2 years ago
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