3 years ago

How many sodium atoms does 2NaOH have?

Chemistry

2 answers:

attashe74 [19]3 years ago

5 0

Answer:

Explanation:

Pachacha [2.7K]3 years ago

3 0

Answer: 1 sodium atom

Explanation:

Na -1 sodium

H -3 hydogen

O -1 oxygen

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PLSSS HELP FAST

Aliun [14]

Note the formula

$\boxed{\sf Mass\:no=No\:of\:protons+No\:of\:neutrons}$

For X:-

No of protons:-

$\\ \sf\longmapsto 19-10=9protons$

It is Fluorine.

For Y:-

No of protons:-

$\\ \sf\longmapsto 16-8=8protons$

It is Oxygen.

Option D is correct

7 0

2 years ago

What object has a mass of 10 grams and a volume of 2 mL

Elena-2011 [213]

Answer:

Destiny = 5 g/ml

Explanation:

The formula for density is d=

Knowing this, divide your mass by volume:

10 g / 2 ml = 5 g/ml

Final answer:

Destiny = 5 g/ml

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2 years ago

Help asap for brainlist

Brums [2.3K]

Answer:

True po

Explanation:

Sana nakatutulong

#Carry on learning

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2 years ago

I need help! how many moles are in 3.4*10^-7 grams of silicon dioxide, SiO2. I got 2.0^17 but I think it's wrong :(

blondinia [14]

Molar mass SiO2 = 28 + 32 = 60

<span>so moles sand = 3.4 x 10-7 / 60</span>

8 0

3 years ago

Which of the following statements about this reaction is true:

Semmy [17]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

The Correct statement is ~

A. The reaction releases heat

As we can observe, there's heat in product side of the given equation that shows - In the given reaction heat is released making it an exothermic reaction ~

I hope it helps ¡

$\mathrm{✌TeeNForeveR✌}$

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2 years ago