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astra-53 [7]
3 years ago
6

2. Why are stain used when preparing observing cells under the

Chemistry
2 answers:
ella [17]3 years ago
8 0

Answer:

to see the cells clearly

erica [24]3 years ago
4 0

Answer:

So u dont mess it up

Explanation:

Suu whoop real right blood gang on dead homies

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What coefficient of h+ balances the atoms in this half-reaction h+ + mno2 → mn2+ + h2o?
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The answer is 4 im pretty sure 
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Define Mole Concept give 3 Significance of Mole concept​
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The mole is important because it allows chemist to work with a subatomic world with macro world units and amount. Atoms molecules and formula units are very small and very difficult to work with usually. However the mole allows a chemist to work with amount large enough to use.

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What are the missing coefficients for the skeleton equation below? Cr(s)+Fe(NO3)2(aq)>Fe(s)+Cr(NO3)3(aq)
Stolb23 [73]

Answer:

2 Cr(s) + 3 Fe(NO3)2(aq) = 3 Fe(s) + 2 Cr(NO3)3(aq)

Explanation:

I balanced this chemical equation so that both sides are equal, meaning that the mass of reactants is equal to mass of products.

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3 years ago
Which is a chemical property of iron?
Marta_Voda [28]
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A fuel tank holds 22.3 gallons of gasoline. If the density is 0.8206 g/mL, what is the mass in kilograms of gasoline in a full t
7nadin3 [17]

Answer:

m=69.3kg

Explanation:

Hello!

In this case, since the density is computed by dividing the mass of the substance by its occupied volume (d=m/V), we first need to realize that 0.8206 g/mL is the same to 0.8206 kg/L, which means we first need to compute the volume in L:

V=22.3gal*\frac{3.78541L}{1gal}=84.415L

Then, solving for the mass in d=m/V, we get m=d*V and therefore the mass of gasoline in that full tank turns out:

m=0.8206g/L*84.415L\\\\m=69.3kg

Best regards!

8 0
3 years ago
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