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3 years ago

Blank occur blank blank molecules?

Chemistry

1 answer:

oksian1 [2.3K]3 years ago

3 0

Answer:

Reactions occur when two or more molecules interact.

Explanation:

SCIENCE

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2. If you have 100 graham crackers, unlimited chocolate, and only five marshmallows, how many S’mores can you make? Show calcula

Scorpion4ik [409]

Answer:

I'm pretty sure it's only 5, because once you've used up all 5 marshmallows, you can't make any more s'mores. Unless just graham crackers and chocolate counts as a s'more...

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3 years ago

What is the average mass of a single chlorine atom in grams?

aliina [53]

It’s 5.88 x 10^-23.............

6 0

3 years ago

Read 2 more answers

Write the ion-product expression at equilibrium for each compound: How to enter the correct answer: e.g. silver sulfate (Ag2SO4)

enot [183]

Answer:

(1) Magnesium carbonate :-

$Q_{MgCO_3}=[Mg^{2+}][CO_3^{2-}]$

(2) Calcium phosphate :-

$Q_{Ca_3(PO_4)_2}=[Ca^{2+}^3][PO_4^{3-}^2]$

(3) Silver sulfide :-

$Q_{Ag_2S}=[Ag^{+}^2][S^{2-}]$

Explanation:

(1) Magnesium carbonate will dissociate as:-

$MgCO_3\rightarrow Mg^{2+}+CO_3^{2-}$

The expression for the ion-product is as follows:-

$Q_{MgCO_3}=[Mg^{2+}][CO_3^{2-}]$

(2) Calcium phosphate will dissociate as:-

$Ca_3(PO_4)_2\rightarrow 3Ca^{2+}+2PO_4^{3-}$

The expression for the ion-product is as follows:-

$Q_{Ca_3(PO_4)_2}=[Ca^{2+}^3][PO_4^{3-}^2]$

(3) Silver sulfide will dissociate as:-

$Ag_2S\rightarrow 2Ag^{+}+S^{2-}$

The expression for the ion-product is as follows:-

$Q_{Ag_2S}=[Ag^{+}^2][S^{2-}]$

6 0

3 years ago

Uranium-235 and uranium-238 are considered isotopes of one another

Bogdan [553]

If you are asking which is the most abundant, Uranium-238 is

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4 years ago

According to de Broglie, which of these objects does not have a wavelength?

polet [3.4K]

Answer: Option D is correct.

Explanation: Equation given by de Broglie is:

$\lambda =\frac{h}{mv}$

where, $\lambda$ = wavelength of the particle

h = Planck's constant

m = mass of the particle

v = velocity of the particle

In option A, football will have some mass and is moving with a velocity of 25 m/s, hence it will have some wavelength.

In Option B, unladen swallow also have some mass and is moving with a velocity of 38 km/hr, hence it will also have some wavelength.

In Option C, a person has some mass and is running with a velocity of 7 m/hr, hence it will also have some wavelength.

As, the momentum of these particles are large, therefore the wavelength will be of small magnitude and hence, is not observable.

From the above, it is clearly visible that all the options are having some wavelength, so option D is correct.

7 0

3 years ago