Yes, but u wouldn't die if u weren't dehyrated
Answer:
to deal a blow or stroke to (a person or thing), as with the fist, a weapon, or a hammer; hit. to inflict, deliver, or deal (a blow, stroke, attack, etc.). to drive so as to cause impact: to strike the hands together. to thrust forcibly: Brutus struck a dagger into the dying Caesa
Explanation:
Answer:
the amount present 8 hours ago is Ao = 93.338 g
Explanation:
the radioactive decay is given by
A = Ao * 2^(- t/T)
where T = half-life of the substance , t= time , A= amount of substance at time t , Ao= amount of substance at time 0
therefore at t=8 hours , A=16.5 gr
Ao = A*2^(t/T) = 16.5 g * 2^(8 hours/3.20 hours) = 93.338 g
Ao = 93.338 g
Endothermic reaction is the answer.
Answer:
38.541 × 10¹⁹ formula units
Explanation:
Given data:
Mass of chromium sulfate = 0.25 g
Formula units in 0.25 g = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
18 g of water = 1 mole = 6.022 × 10²³ formula units of water
Number of moles of chromium sulfate = Mass / molar mass
Number of moles of chromium sulfate = 0.25 g/ 392.16 g/ mol
Number of moles of chromium sulfate = 6.4 × 10⁻⁴ moles
Number of formula units:
1 mole = 6.022 × 10²³ formula units
6.4 × 10⁻⁴ moles × 6.022 × 10²³ formula units / 1 mol
38.541 × 10¹⁹ formula units