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ikadub [295]
3 years ago
14

Please help me vote you brainiest

Chemistry
1 answer:
xxTIMURxx [149]3 years ago
3 0

Answer: D

Explanation: P = W/t

W = F d

When dividing, if you have a large number over a small, you get a large number. We want a small number, so we want the opposite for our P : W/ t formula. We want a small Work and a large time.

Right off the bat, the two with the least time aren't right then.

From there, we can estimate how much work it would take using the W = F d equation. If there is a small distance, there is less work, which is what we want to achieve a small work over large time.

So, the choice with the most time and the least distance should be correct.

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Is the following equation balanced? FeCl₃ + MgO → Fe₂O₃ + MgCl₂<br> A.<br> Yes<br> B.<br> No
VARVARA [1.3K]

Answer:

The answer is B) No.

Explanation:

The equation balanced is:

2 FeCl₃ + 3 MgO → Fe₂O₃ + 3 MgCl₂

Equation balancing can be done by "trial and error" or by algebraic method.

In this way the equation is balanced on both sides having:

2 atoms of Fe, 6 of Cl, 3 of Mg and 3 of 0.

4 0
3 years ago
F2(g)+2Br(aq)=Br(t)+F(aq)<br> which species is redused?<br> a)F<br> b)Br<br> c)F2<br> d)Br2
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4 0
3 years ago
 Convert the following to moles.
Luda [366]
Use dimensional analysis.
\frac{60.0 grams NaOH}{1} *  \frac{1 mole NaOH}{40.0 amu NaOH} =1.5 moles

\frac{2.73 grams NH4Cl}{1} *  \frac{1 mole NH4Cl}{53.49 amu NH4Cl} = .051 moles

Now you try converting moles to grams. All you have to do is start with MOLES  (Unlike the previous examples) over 1 then multiply that ratio by the ratio of molar mass over 1 mole. Hope this helps!
6 0
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¿Cuál es el número atómico del calcio? 4 Científico que propuso que los átomos eran esferas indivisibles e indestructibles. 6 Si
spayn [35]

Answer:

es una expresion de 52 necesito puntos para una pregunta sorry

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How do you dilute a concentrated solution?
AVprozaik [17]

Answer:

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