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SCORPION-xisa [38]

3 years ago

8

Which of the following equations is correctly balanced? UO2(s)+4HF(l)→UF4(s)+H2O(l) NCl3(g)+3H2O(l)→NH3(g)+HClO(aq) 4NH3(g)+3O2(

g)→2N2(g)+3H2O(g) 4PH3(g)+8O2(g)→P4O10(s)+6H2O(g)

1 answer:

Rainbow [258]3 years ago

5 0

Answer:

4PH3(g)+8O2(g)→P4O10(s)+6H2O(g)

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garik1379 [7]

Answer:

PbO is the Answer

Explanation:

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3 years ago

What is released in the process of an atom moving from an excited level to a lower energy level?

luda_lava [24]

The correct answer is a Photon.

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3 years ago

Can someone give me an example of balancing equations with a solution that is simple?

Monica [59]

Explanation:

$H _{2}O _{2(aq)} →H _{2}O _{(l)} + O _{2}(g) \\ solution : 2 \: and\: 2$

6 0

3 years ago

Read 2 more answers

What would be the mass of 9.03*10^21 molecules of hydrobromic acid

Fynjy0 [20]

Answer:

2.11 g hydrobromic acid (correct to 3SF)

Explanation:

Molecular formula of hydrobromic acid = C2H5BrO2

mass of C2H5BrO2 = 140.96g

Beginning with what we're given, 9.03*10^21 we then make a conversion by using Avegadro's number which is 6.02*10^23 per mole (Oct. 23 at 6:02 am is national mole day :) Then, we need to convert out of moles, 140.96g hydrombromic acid per mole.

It looks like this:

9.03*10^21 molecules • (1 mol C2H5BrO2 / 6.02*10^23 molecules) • (140g C2H5BrO2 / 1 mol) = 2.1144 g C2H5BrO2

3 0

3 years ago

What electrically neutral atom will have an electron configuration of 1s2 2s2 2p4?

abruzzese [7]

Answer:- oxygen.

Explanations:- The electronic configuration is given and we are asked to figure out the electrically neutral atom that will have the electron configuration, $1s^22s^22p^4$ .

The sum of electrons for this electron configuration is 8. If we look at the periodic table then 8 is the atomic number of oxygen.

So, the electrically neutral atom for the given electron configuration is oxygen.

6 0

3 years ago