The relation between the mass, average speed, and temperature is given by:
u = √(3RT/M)
It is given that, temperature is 35 degree C = 35 + 273 = 308 Kelvin
The molar mass of oxygen = 0.032 kg/mole
r = 8.314 j/(mol-k)
u = √(3 × 8.314 × 308 / 0.032)
u = 489.966 m/s
The answer is a. the smallest unit of matter that maintains its chemical identity.
So you find the moles of the lead nitrate by doing mass/Mr so 25/331.2 which gives you 0.075
Due to stoichiometry in the reaction we see 1:2 ratio so we do 0.075x2 gives 0.15 moles of NaNO3
Then mass: moles x Mr so 0.15 x 85= 12.75g is your theoretical
So % yield is actual/ theoretical x 100
Therefore 6.0g/12.75 g x 100 = 47%
Not sure if it’s correct hope it helps!
Answer:
Because the neutrons equal the number of protons
Explanation:
So if u have 16 protons u have 16 neutrons
Answer:
nice
Explanation:
you can do it just try your best