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Sonbull [250]
3 years ago
10

Magnesium and oxygen are likely to form a covalent bond between them. True or false??

Chemistry
1 answer:
zalisa [80]3 years ago
3 0
False is the answer.
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What is the identity of an ion having 46 protons, 42 electrons and 60 neutrons?
Anon25 [30]

Answer:

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Explanation:

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What is another name for groups of elements?
jeka94
They are called groups or family. Hope this helps 
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Please answer this I need it answered really soon thank you so much whoever answers this and I will give BRAINLIEST!!
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B extinction

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as the species does not exist any more, the species is extinct, therefore making the pictured fossil of an extinct species

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3 0
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Read 2 more answers
Calculate the mass in micrograms of zinc oxalate the chemist has added to the flask. be sure your answer has the correct number
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<span>A chemist adds 155.0ml of a 4.10 X 10^-5 mmol/L of a zinc oxalate (ZnC2O4)solution to a reaction flask. Calculate the mass in micrograms of zinc oxalate the chemist has added to the flask. 1mmol = 10^-3 mol Therefore 4.10*10^-5mmol = 4.10*10^-8mol molar mass ZnC2O4 = 65.39+(2*12.011)+(4*15.99) = 153.372g/mol You have 4.10*10^-8 mol/litre =153.372 * 4.10*10^-8 = 6.29*10^-6 grams / litre (* see below) But you have 155ml. Mass of ZnC2O4 = 155/1000*6.29*10^-6 g Mass is = 9.75*10^-7 grams 1µg = 10^-6 g You then have 9.75*10^-7/10^-6 = 0.975µg ZnC2O4 (*see below) at this point you could have said: 1µg = 10^-6 g therefore you have a solution of 6.29µg per litre, 155ml = 6.29*155/1000 = 0.975µg ZnC2O4</span>
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3 years ago
Which part of the mantle is still solid but flows like a heavy liquid
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The Earth is composed of four different layers. Many geologists believe that as the Earth cooled the heavier, denser materials sank to the center and the lighter materials rose to the top. Because of this, the crust is made of the lightest materials (rock- basalts and granites) and the core consists of heavy metals (nickel and iron).

 

<span>The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The Outer and Inner Cores are hotter still with pressures so great that you would be squeezed into a ball smaller than a marble if you were able to go to the center of the Earth!!!!!!</span>
5 0
3 years ago
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