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11Alexandr11 [23.1K]
3 years ago
6

Need to know how to do chemical reactions

Chemistry
1 answer:
melomori [17]3 years ago
8 0
Chemical reactions happen by them self like if you hear baking soda and it makes a gas.
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Particals in the nucleus of an atom are its _________ and ____________.
Illusion [34]
That would be Protons and Neutrons.
6 0
2 years ago
A sample of air is composed of nitrogen, oxygen, and argon gases. if the partial pressure of nitrogen is 587 mm hg, oxygen is 15
oksian1 [2.3K]
The total  pressure  is calculated as below

Total  pressure = partial pressure of (nitrogen +oxygen + argon gas)

= 587 mm hg + 158 mm hg + 7 mm hg = 752  mmhg  is the  total pressure
3 0
3 years ago
Read 2 more answers
Give the number of lone pairs around the central atom and the geometry of the ion IBr2.
Salsk061 [2.6K]

Answer:

Option E!

Explanation:

If we were to draw the lewis dot structure for IBr2 -, we would first count the total number of valence electrons ( " available electrons " ). Iodine has 7 valence electrons, and so does Bromine, but as Bromine exists in 2, the total number of valence electrons would be demonstrated below;

7 + 7 * ( 2 ) =\\7 + 14 + 1 =\\22 Electrons

Don't forget the negative on the Bromine!

Now go through the procedure below;

1 ) Place Iodine in the middle and draw single bonds to each of the bromine.

2 ) Add three lone pairs on each of the Bromine's

3 ) Now we have 6 electrons left, if we were to exclude the electrons shared in the " single bonds. " This can be placed as three lone pairs on Iodine ( central atom )!

The molecular geometry can't be linear, as there are lone pairs on the atoms. This makes it bent.

4 0
3 years ago
The thermodynamic quantity that expresses the extent of randomness in a system is ________. Question 14 options: entropy bond en
Bumek [7]

Answer:  entropy

Explanation:

Entropy is the measure of degree of randomness or disorder of the system.

Bond energy is the energy possessed by a substance by virtue of its bonding of electrons

Enthalpy is the amount of energy absorbed or released in a chemical reaction.

Internal energy is the energy possessed by a body by virtue of rotational, vibrational and transitional modes.

Heat flow is the phenomenon of thermal equilibrium in which heat flows from hotter body to colder body to maintain equilibrium temperature.

3 0
3 years ago
Draw the Lewis structure for CH3CH2O2H?
kotegsom [21]

Answer:

hydroperoxyethane

Explanation:

tomsFor the Lewis structure we have to remember that all the atoms must have <u>8 electrons</u> (except for hydrogen). In this structure, we have three types of atoms, Carbon, Hydrogen and Oxygen. So, we have to remember the <u>valence electrons</u> for each atom:

-) Carbon : 4 electrons

-) Hydrogen: 1 electron

-) Oxygen: 6 electrons

We can start with the "CH_3" part. We can put 3 hydrogen bond arroun the carbon. We can use this same logic with  "CH_2". Finally for oxygens, we can put it one bond with CH_2 and a bond between oxygens with a final bond with hydrogen to obtain <u>hydroperoxyethane</u>.

See figure 1 for further explanations.

6 0
3 years ago
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