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zzz [600]
3 years ago
14

The force of gravity on Planet B is 3.4 m/sec2. A box weighs 34 N on Earth. What is the mass of the box?

Chemistry
2 answers:
CaHeK987 [17]3 years ago
6 0

Answer:

The correct answer is option a.

Explanation:

Weight of an object is the force acting on an object by virtue of its mass.

Weight of box on earth , W= 34 N

Mass of the box  = m

The force of gravity on Planet earth = g=9.8 m/s^2

W = mg...[1]

m=\frac{W}{g}=\frac{34 N}{9.8 m/s^2}=3.47 kg

3.47 kilo gram is the mass of the box

KonstantinChe [14]3 years ago
3 0
The answer will be 3.47....Option "a".

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If 100cm is 1 metre
Then 0.57 cm =

If less more divides,
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6 0
3 years ago
A 50.6 grams sample of magnesium hydroxide (Mg(OH)2) is reacted with 45.0 grams of hydrochloric acid (HCl). What is the theoreti
zysi [14]
            <span> Mg(OH)2(s) + 2HCl(aq) yield MgCl2(aq) + 2H2O(l)

grams HCl required = (50.6 grams Mg(OH)2) * (1 mol Mg(OH)2 / 58.3197 grams Mg(OH)2) * (2 mol HCl / 1 mol Mg(OH)2) * (36.453 grams HCl / 1 mol HCl) = 63.26 grams HCl required

Since there are only 45.0 grams HCl, then HCl is the limiting reactant.

theoretical yield MgCl2 = (45.0 grams HCl) * (1 mol HCl / 36.453 grams HCl) * (1 mol MgCl2 / 2 mol HCl) * (95.211 grams MgCl2 / 1 mol MgCl2) = 58.6 grams MgCl2 </span>
7 0
3 years ago
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Classify the reaction that makes a firefly glow in terms of energy input and output
user100 [1]
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4 0
3 years ago
What is the electron configuration of a ground-state Nb2+ ion? Select one: a. 1s22s22p63s23p64s23d104p65s24d1 b. 1s22s22p63s23p6
zzz [600]
[Kr]4d3
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5 0
3 years ago
In which of the following compounds is the mass ratio of chromium to oxygen closest to 1.62 to 1.00?
ohaa [14]

Answer:

The answer to your question is letter A

Explanation:

Data

Mass ratio 1.62 to 1.00

Atomic mass Cr = 52 g

Atomic mass O  = 16

Process

1.- Calculate the proportion Chromium to Oxygen to each possible solutions

a) CrO₃   =   \frac{52}{16 x 3} = \frac{52}{48} = 1.08

b) CrO₂   =   \frac{52}{16 x 2} = \frac{52}{32} = 1.63

c) CrO     = \frac{52}{16} = 3.25

d) Cr₂O   =  \frac{52 x 2}{16} = \frac{104}{16} = 6.5  

8 0
3 years ago
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