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vivado [14]
3 years ago
12

If you start with 5 molecules of O2 in the reaction 2Mg+O2--> 2MgO, how much Mg will you need?

Chemistry
1 answer:
joja [24]3 years ago
8 0
You will need 4 molecules of O2.
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Use condensed electron configurations and Lewis electron-dot symbols to depict the ions formed from each of the following atoms,
Dennis_Churaev [7]

The formula for Cs and S is Cs₂S.

For Cs and S,

Ions formed will be Cs⁺ and S²⁻

As cesium belongs to group 1A and sulfur belongs to group 6A. Therefore, the condensed electronic configuration is -

For Cs is [Xe} 6s¹ and for S is [Ne] 3s²3p⁴.

Cs have 1 valence electron and S have 6 valence electrons.

Hence to attain a stable electronic configuration, both two Cs atoms lose one electron and form Cs⁺ and these two electrons will be accepted by one S atom to form S²⁻.

Therefore the formula for the compound is Cs₂S as Cs donate 1 electron and S will accept 2 electrons from Cs.

The formula is Cs₂S.

To learn more about electronic configuration, visit: brainly.com/question/15051483

#SPJ4

6 0
1 year ago
Pls help if you only know the correct answer! Thanks!!
Likurg_2 [28]

Answer:

1. H=2, O=1

2. H=4, O=2

3. C=1, O=1

4.

a. reactants C=1, O=2

b. products C=1, O=2

5.

a. reactants H=4, O=2

b. products H=4, O=2

6

a. reactants C=1, O=1, H=4

b. products C=1, O=1, H=4

4 0
2 years ago
which type of relationship exists when a certain type of trees roots need a fungus present in order to grow normally
Anika [276]
This is a symbiotic relationship called commensalism if the tree root is the only one to benefit.
4 0
3 years ago
What is the Kelvin temperature of the air in a tire if the pressure inside the tire is 188 kPa at 32°C. While driving under peri
DENIUS [597]

Answer:

  • <u>414K</u>

Explanation:

The question is not completely clear because some missing parts or grammar (syntax) errors.

Interpreting it, the question is <em>what is the Kelvin temperatue of the air in a tire, when the pressure in the tire has increased to 225 kPa, if the initial conditions of the air inside the tire were 188kPa of pressure and a temperature of 32ºC.</em>

To solve this, you can assume constant volume and use the law of Gay-Lussac for ideal gases:

          \dfrac{P_1}{T_{1}}=\dfrac{P_2}{T_2}

That equation works with absolute temperatures, i.e. Kelvin.

  • 32ºC = 32 + 273.15 K = 305.15K

Then solve for T₂, substitute and compute:

        T_2=P_2\times \dfrac{T_1}{P_{1}}=225kPa\times \dfrac{305.15K}{188kPa}

        T_2=413.90K\approx 414K\longleftarrow answer

8 0
3 years ago
Order the following from least to most cellularly complex:
miv72 [106K]

Answer:

organ, tissue, a cell, and a gorilla (i think)

Explanation:

7 0
3 years ago
Read 2 more answers
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