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Mumz [18]
3 years ago
8

Calculate the mass of sodium thiosulfate pentahydrate needed to prepare 500 ml of an approximately 0.10 m solution

Physics
1 answer:
attashe74 [19]3 years ago
3 0
AKAKAKAKAKKAKKAKAKAAQKQKQQ
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Which of these pairs of atoms are isotpoes? (Physical Science) Pair A Pair B Pair C # protons 6 8 5 2 12 12 # neutrons 8 8 5 3 1
Aleksandr-060686 [28]

Answer:

I guess that the atoms are:

Protons:     6     8    5    2    12    12

Neutrons:  8     8     5   3     13    14

Now, two atoms are isotopes if they share the same number of protons (so both atoms are the same element) but they have a different number of neutrons.

From the given options, the only two that have the same number of protons but a different number of neutrons are:

Protons 12, neutrons 13

and

Protons 12, neutrons 14.

These two are isiotopes.

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3 years ago
S.I unit for moment of inertia of a fly wheel​
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m is expressed in kilograms and r in metres, with I (moment of inertia) having the dimension kilogram-metre square.

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1 year ago
How long does a player sit out of a game of handball for committing a second or third foul?
yulyashka [42]

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Walking’ - If a handball player takes more than three steps without dribbling (bouncing the ball) or holds the ball for more than 3 seconds without bouncing it, shooting or passing, then that is deemed ‘walking' and possession is lost.

'Double dribble’ - Handball players cannot receive the ball and bounce it, then hold the ball, and bounce it again. This is termed ‘double dribble’ and is against the rules.

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3 years ago
A 55 kg person falling with a velocity of 0.6
siniylev [52]

Answer:

What are we supposed to find, if it is kinetic energy then this is the solution.

K.E=1/2mv^2

K.E= kinetic energy

M=mass

V=velocity

K.E =0.5*55*0.6^2

K.E=9.9J

Explanation:

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Which observation BEST supports evidence that two different species share a common ancestor? A) they both prey on the same anima
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The answer is definitely C
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