3 years ago

When an atom of oxygen (O) forms an anion by gaining two electrons, what is the anion’s charge?

Chemistry

1 answer:

Rudiy273 years ago

7 0

Answer:

bdndbdjdbdjdbdjdbsidbdidbsjsbsisbsidbd

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The nutrition label on a bottle of cola reports that a 8.0 fl oz serving contains 25 g of sugar. How many kilograms of sugar are

Sedbober [7]

Answer:

0.21 kg

Step-by-step explanation:

Volume of cola = 2.0 L × (33.8 fl oz/1L)

= 67.6 fl oz

Grams of sugar = 67.6 fl oz × (25 g sugar/8.0 fl oz)

= 210 g sugar

Kilograms of sugar = 210 g × (1 kg/1000 g)

= 0.21 kg

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3 years ago

Which of the following processes rearranges atoms into new molecules during a reaction?

Andreyy89

C burning
Because melting is incorrect lol

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Write the formulas for the following ionic compounds: (a) copper bromide (containing the Cu+ ion), (b) manganese oxide (containi

ivann1987 [24]

Answer:The formulas of ionic compounds are:

a) $CuBr$

b) $Mn_2O_3$

c) $Hg_2I_2$

d) $Mg_3(PO_4)_2$

Explanation:

Formulas for the an ionic compounds is determine by:

Criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

(a) Copper bromide :Given that it contains $Cu^+$ ion.

$Cu^++Br^-\rightarrow CuBr$

(b) Manganese oxide : Given that it contains $Mn^{3+}$ ion.

$Mn^{3+}+O^{2-}\rightarrow Mn_2O_3$

(c)Mercury iodide :Given that it contains $Hg_2^{2+}$

$Hg_2^{2+}+I^-\rightarrow Hg_2I_2$

(d) Magnesium phosphate :Given that it contains $PO_4^{3-}$

$Mg^{2+}+PO_4^{3-}\rightarrow Mg_3(PO_4)_2$

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3 years ago

In calcium fluoride, what is the closets noble gas that each ion becomes?

alekssr [168]

Calcium fluoride: CaF₂
Ca(2+) >>> Ar (argon)
F(-) >>> Ne (neon)

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Must have host cell to reproduce

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3 years ago