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3 years ago

In the symbol 3p4

Chemistry

1 answer:

kompoz [17]3 years ago

4 0

Answer:

a. the 3 represents the principal energy level

Explanation:

3 is the principal energy level. The p is the sublevel. 4 is the possible occupying electron.

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2CO + O2  2CO2

murzikaleks [220]

Answer:

75 L Co2

37.5 L o2

Explanation:

welcome.

3 0

3 years ago

Sodium hydrogen carbonate NaHCO3, also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Ac

olga2289 [7]

Answer:

1.4952 grams of sodium bicarbonate she would need to ingest to neutralize this much HCl.

Explanation:

$Moles (n)=Molarity(M)\times Volume (L)$

Moles of hydrochloric acid = n

Volume of hydrochloric acid solution = 200.0 mL = 0.200 L

Molarity of the hydrochloric acid = 0.089 M

$n=0.089 M\times 0.200 L=0.0178 mol$ of HCL

$HCl(aq)+NaHCO_3(aq)\rightarrow NaCl(aq)+H_2O(l)+CO_2(g)$

According to reaction, 1 mole of HCl is neutralized by 1 mole of sodium bicarbonate.

Then 0.0178 moles of HCl wil be neutralized by :

$\frac{1}{1}\times 0.0178 mol=0.0178 mol$ of sodium bicarbonate

Mass of 0.0178 moles of sodium bicarbonate:

0.0178 mol × 72 g/mol = 1.4952 g

1.4952 grams of sodium bicarbonate she would need to ingest to neutralize this much HCl.

8 0

3 years ago

explain why iron can displace copper from copper II nitrate solution, but copper cannot displace iron from iron III nitrate solu

mihalych1998 [28]

Answer:

Iron metal is more reactive than copper.

Explanation:

Iron metal is more reactive than copper. ... Cu is less reactive than iron, therefore, cannot replace iron from iron sulphate (FeSO4). we have already seen that iron is more reactive than copper. So that means that in this reaction, copper is less reactive than iron. That means copper cannot displace iron. It cannot kick out iron from a sulfate.

4 0

3 years ago

How many valence electrons are in an atom with the electron configuration in example A? Example A: 1s22s22p63s23p64s1 7 1 6 19

Scrat [10]

1 valence electron is the amount

3 0

4 years ago

Read 2 more answers

What type of igneous rock has large crystals

VARVARA [1.3K]

Extrusive rock because it takes longer to cool, making the crystal size larger

5 0

3 years ago