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Kazeer [188]
2 years ago
15

Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder. What is the formul

a equation for this reaction?
Chemistry
1 answer:
Lynna [10]2 years ago
5 0
The formula equation is Ca + F2 = CaF2. 
Hope it helps.

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Sodium electron configuration in longhand notation
Elden [556K]

Answer:

Na₁₁ = 1s² 2s² 2p⁶ 3s¹

Explanation:

Sodium is present in group 1.

It is alkali metal.

It has one valence electron.

The atomic number of sodium is 11.

Its atomic mass is 23 amu.

The longhand notation of electronic configuration of sodium can be written as,

Na₁₁ = 1s² 2s² 2p⁶ 3s¹

The electronic configuration in shorthand notation( noble gas) would be written as,

Na₁₁ = [Ne] 3s¹

Sodium loses its one valence electron to complete the octet and get stable thus form +1 cation.

It react with halogen and form salt. Such as sodium chloride.

2Na + Cl₂  →  2NaCl

5 0
2 years ago
what is the difference between the number of electrons in an atom of selenium, Se and the number of electrons in an atom of alum
ELEN [110]

Answer:

Well, electrons can be converted into a atomic number so if SE atomic number is 34 that means it has 34 electrons. AI has a atomic number of 13 meaning it has 13 electrons. So the difference is that SE has more electrons then AI.

5 0
3 years ago
1. What is the International System of Units and its abbreviation?
GenaCL600 [577]

Answer:

SI

modern form of the metric system

Explanation:

7 0
2 years ago
I DARE YALL TO JOIN THIS MEET CODE IS cdabauer JOIN THEN HURRY UP AND LEAVE AND YOU WILL GET BRAINLY​
Aleonysh [2.5K]

Answer:

nah but ill take points tho

Explanation:

4 0
2 years ago
Read 2 more answers
lucose, a major energy-yielding nutrient, is present in bacterial cells at a concentration of approximately 0.200 mM. i) What is
Mkey [24]

Answer:

The concentration is 0.036 mg/mL

Explanation:

Concentration = 0.2 mM = 0.2/1000 = 2×10^-4 M = 2×10^-4 mol/L × 180,000 mg/1 mol × 1 L/1000 mL = 0.036 mg/mL

3 0
2 years ago
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