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Musya8 [376]
3 years ago
11

BRAINLIEST ANSWER!

Chemistry
1 answer:
yaroslaw [1]3 years ago
5 0
1. take 20 * 0.5 to get 10 m/s

2. 0.8/0.4 = 2 Hz
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Picture of gas laws question below:
Vera_Pavlovna [14]

Volume of the tank is 5.5 litres.

Explanation:

mass of the CO2 is given 8.6 grams

Pressure of the gas is 89 Kilopascal which is 0.8762 atm

Temperature of the gas is 29 degrees ( 0 degrees +273.5= K) so (29+273)

R = gas constant 0.0821 liter atmosphere per kelvin)

FROM THE IDEAL GAS LAW

PV=nRT ( P Pressure, V Volume, n is number of moles of gas, R gas constant, Temperature in Kelvin)

no of moles = mass/atomic mass

                    =  8.6/44

                    = 0.195 moles

now putting the values in equation

V=nRT/P

  = 0.195*0.0821*302/ 0.8762

  = 5.5 litres.

As the carbon dioxide gas occupies the volume os the tank hence volume of tank is 5.5 litres.

4 0
3 years ago
The nucleus of the atom is held together by the mutual attraction of the positively charged protons and the negatively charged n
jek_recluse [69]
That is FALSE because neutrons have no charge and as their name suggest are neutral particles.
8 0
3 years ago
¿qué propiedades tomó en cuenta John Newlands para clasificar los elementos de la tabla periódica?
liubo4ka [24]

Answer:

John Newlands propuso su ley de octavas en 1864 en la que organizó todos los elementos conocidos en ese momento en una tabla en orden de masa atómica relativa. Cuando hizo esto, descubrió que cada elemento era similar al elemento ocho lugares más adelante.

8 0
3 years ago
Thank you for anyone that helps
Stolb23 [73]
C) 6.75 x 10^-7

Hope it helped ya 
7 0
2 years ago
Read 2 more answers
What is the melting point for 10 pieces of tin?
Ray Of Light [21]
573 degrees F

hope this helped 
: )
7 0
3 years ago
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