Answer: B. triH sol Mgl2= -triHlat+ triHhydr Mg^2+ 2triHhydr^l-
Explanation:
Just did it and it was right
Answer:
5. electrical.
Explanation:
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In this case, since the energy can be manifested in different forms of energy, when talking about electronic devices such as cellphones, computers, consoles and all of them, as they are powered by electric sources, we infer that the answer in this case is 5. electrical
, since thermal energy is associated to the temperature, light and sound to the energy carried by a wave and mechanical to a work done.
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Answer: Lewis dot structures aren't drawn for ionic compounds, such as MgCl2. Because there aren't any shared electron pairs in an ionic compound. Lewis structure are only drawn for molecular compounds, atoms, or some individual ions. If we want to visualize a chloride ion (Cl -), it's Lewis structure will show Cl with complete octet.
Explanation: Hope this helps you
Answer:
They will be attracted with the uncharged object. ... The negative attracts positive ions of the uncharged object and the positive does the opposite one.
Explanation:
sorry if it didnt help. im in seventh drade so im not so sure what u want hope it helped.
Answer:
0.4951 grams of Zn have been consumed.
Explanation:
Pressure at which gas is collected over water = p = 732 Torr
Vapor pressure of the water = p' = 26.74 Torr
Pressure of hydrogen gas = P
p = P + p'
P = p - p' = 732 Torr - 26.74 Torr = 705.26Torr
P =
1 atm = 760 Torr
Volume of the hydrogen gas = V = 201 mL = 0.201 L
1 mL= 0.001 L
Moles of hydrogen gas = n
Temperature at which hydrogen gas collected = T = 27°C = 27+273 K = 300 K
Using an ideal gas equation:
n = 0.007573 mol
According to recation , 1 mole of hydrgen gas was obtained from 1 mole of zinc,then 0.007573 moles of hydrgen gas will be obtained from;
of zinc
Mass of 0.007573 moles of zinc:
0.007573 mol × 65.38 g/mol = 0.4951 g
0.4951 grams of Zn have been consumed.