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KengaRu [80]
3 years ago
9

Which formula contains two non-metals?SiO2BaoKINaBr​

Chemistry
1 answer:
Gwar [14]3 years ago
7 0

Answer:

SiO2 contains two non metals.

Explanation:

barium potassium and sodium are all metals, oxygen is non metal

while silicon is neither metal nor non metal it is a metalloid therefore the best option would be SiO2

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Answer:

Q = mcT ...you can either substitute the molar heat capacity of water in the place of c or the specific heat capacity of water.

Explanation:

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3 years ago
Will a horse galloping in a field produce and average velocity of zero
motikmotik

Answer:

No

Explanation:

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4 years ago
Number of electrons for all of these even the ones with a number by them ? Will give brainlist!!!!
Bumek [7]

Explanation:

s=2

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7 0
3 years ago
Given 6.98 x 10 4 power grams of iron, calculate the moles of iron present
KiRa [710]

Answer:

1249.88 mol.

Explanation:

∵ no. of moles of Fe = mass of Fe/atomic weight of Fe.

<em>∴ no. of moles of Fe </em>= (6.98 x 10⁴ g)/(55.845 g/mol) = <em>1249.88 mol.</em>

6 0
3 years ago
How many milligrams of sodium sulfide are needed to completely react with 25.00 ml of a 0.0100 m aqueous solution of cadmium nit
NARA [144]
Na₂S(aq) + Cd(NO₃)₂(aq) = CdS(s) + 2NaNO₃(aq)

v=25.00 mL
c=0.0100 mmol/mL
M(Na₂S)=78.046 mg/mmol

n(Na₂S)=n{Cd(NO₃)₂}=cv

m(Na₂S)=M(Na₂S)n(Na₂S)=M(Na₂S)cv

m(Na₂S)=78.046*0.0100*25.00≈19.5 mg
5 0
4 years ago
Read 2 more answers
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