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Nana76 [90]
3 years ago
10

Put atom in order from most to lest​

Chemistry
1 answer:
Andrej [43]3 years ago
7 0

Answer:

francium, caesium, helium

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D. Parasitism , the roundworm benefits from the relationship, but the puppy is harmed
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During an endothermic phase change, what happens to the potential energy and the kinetic energy?
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The correct answer should be that Potential energy increases, and kinetic energy increases, since they both increase as the temperature changes.
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The "air bags" that are currently installed in automobiles to prevent injuries in the event of a crash are equipped with sodium
stellarik [79]

Answer:

0.0177 L of nitrogen will be produced

Explanation:

The decomposition reaction of sodium azide will be:

2NaN_{3}(s)--->2Na(s)+3N_{2}(g)

As per the balanced equation two moles of sodium azide will give three moles of nitrogen gas

The molecular weight of sodium azide = 65 g/mol

The mass of sodium azide used = 100 g

The moles of sodium azide used = \frac{mass}{molarmass}=\frac{100}{65}=1.54mol

so 1.54 moles of sodium azide will give = \frac{3X1.54}{2}=2.31mol

the volume will be calculated using ideal gas equation

PV=nRT

Where

P = Pressure = 1.00 atm

V = ?

n = moles = 2.31 mol

R = 0.0821 L atm / mol K

T = 25 °C = 298.15 K

Volume = \frac{P}{nRT}=\frac{1}{2.31X0.0821X298.15}=0.0177L

3 0
3 years ago
Which explains the information needed to calculate speed and velocity?
USPshnik [31]

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Both require time, but velocity requires displacement and speed requires distance

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But for calculating the velocity we require time as well as displacement because velocity is defined as the displacement per unit time and as velocity is a vector quantity it has direction

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The rate constant for this second‑order reaction is
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Answer:

daddadaddddddddddddddddddddddddddddda

Explanation:

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3 0
3 years ago
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