Answer:
1s22s22p3.
Explanation:
Electronic configuration of a neutral atom is 1s22s22p3.
Please see the image attached
Neutral atom of nitrogen will have equal number of proton and electron i.e equal to 7. 7 electron of the nitrogen are placed into the s and p orbitals in the ground state.
Answer: most store-bought isnt
Explanation:
there typically a lot of addivitves
Answer: Science is a particular way of knowing about the world. In science, explanations are restricted to those that can be inferred from confirmable data—the results obtained through observations and experiments that can be substantiated by other scientists. Anything that can be observed or measured is amenable to scientific investigation. Explanations that cannot be based on empirical evidence are not a part of science.
Explanation:
Answer:
278 ml of KOH.
Explanation:
The equation for the reaction is: Pb(NO3)2(aq) + 2KOH(aq) --> Pb(OH)2(s) + 2KNO3(aq)
Pb(NO3)2:
Half ionic equation:
Pb(NO3)2(aq) --> Pb2+ + 2NO3^-
Pb(OH)2 --> Pb2+ + 2OH-
Volume = 135 mL
Molar concentration = 0.775 M
Number of moles = molar concentration * volume
= 0.775 * 0.135
= 0.105 mol of Pb(NO3)2
Since 1 mole of Pb(NO3)2 reacted with 2 moles of KOH to give 1 mole of Pb2+ (Pb(OH)2).
By stoichiometry,
Number of moles of KOH = 0.105 * 2
= 0.21 mol
Molar concentration = number of moles/volume
Volume = 0.21/0.753
= 0.278 l
To ml, 0.278 l * 1000 ml/1l
= 278 ml of KOH.
Answer:
yes it can
Explanation:
because, it depends on where the rock is, for example on a dessert it would Be cracked and things like that if near an eruption it would be the flamey black rock, and so on you get it
