3 years ago

Which particles are equal in number for an atom with a neutral charge?

Chemistry

1 answer:

vodka [1.7K]3 years ago

4 0

Electrons and protons

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How many grams of ammonium chloride (NH4Cl) would be required to make a saturated solution in 1000 grams of water at 50 degrees

Pavel [41]

Since,
1000 grams of water = 1000 mL of water
So,
At any of the given temperature:
1000 mL = 10 x 100 mL

moles of NH4Cl = 53.5/53.49
= 1.0 m
= 1.0 mol/Kg
Delta T = 2 x 1.86 x 1.0
= 3.72 c
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3 years ago

A standard 1.00 kg mass is to be cut from a bar of steel having an equilateral triangular cross section with sides equal to 2.50

Elden [556K]

Answer:

The section of the bar is 2.92 inches.

Explanation:

Mass of the steel cut ,m = 1.00 kg = 1000 g

Volume of the steel bar = V = Area × height

Height of the of the section of bar = h

Area of Equilateral triangular = $\frac{\sqrt{3}}{4}a^2$

a = 2.50 inches

Cross sectional area of the steel mass = A

$A=\frac{\sqrt{3}}{4}(2.50 inches)^2=2.71 inches^2$

$V = 2.71 inches^2\times h$

Density of the steel = d = $7.70 g/cm^3$

$1cm^3 = 0.0610237 inches^3$

$d=\frac{m}{v}$

$\frac{7.70 g}{0.0610237 inches^3}=\frac{ 1000 g}{2.71 inches^2\times h}$

$h=\frac{ 1000 g\times 0.0610237 inches^3}{2.71 inches^2\times 7.70 g}$

h = 2.92 inches

The section of the bar is 2.92 inches.

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3 years ago

The pyruvate dehydrogenase complex catalyzes the oxidative decarboxylation of pyruvate to form acetyl‑CoA. E1 , E2 , and E3 are

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It’s B Thiamine puro pyrophosphate (TPP)

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3 years ago

I need help use e picture that’s the question I’m stuck on pleassse

aniked [119]

Answer:

1.14 M

Explanation:

grams/molar mass = ans. / volume

317/110.98=2.86/2.50=1.14 M

- Hope that helps! Please let me know if you need further explanation.

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3 years ago

In the process of making soap, I poured some of the cooked mixture through some muslin fabric, in order to separate the solid pa

lyudmila [28]

Answer:

filtering

Explanation:

you're pouring the mixture through muslin cloth to keep the particles and bigger peaces out of the soap.

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3 years ago

Which particles are equal in number for an atom with a neutral charge? ​

Which particles are equal in number for an atom with a neutral charge?