An ongoing series of fission reactions is called a (n) chain reaction.
Answer:- Oxygen
Explanations:- Elements of same group(family) forms the bonds in almost similar manner. Oxygen and sulfur are the elements of same group and have equal number of valence electrons. So, they form chemical bonds in similar manner as each one needs two more electrons to complete it's octet.
Hydrogen has one valence electron and so it forms only a one single bond.
Nitrogen has 5 valence electrons and it needs three more electrons to complete it's octet and for this it forms three single bonds or one single and one double bond.
Carbon has 4 valence electrons and needs 4 more electrons to complete it's octet. The number of bonds are different for hydrogen, nitrogen and carbon as compared to sulfur.
So, the only and only correct choice is oxygen.
Answer:
0.51 cal/g.°C
Explanation:
Step 1: Given data
- Added energy in the form of heat (Q): 14 cal
- Mass of the liquid (m): 12 g
- Initial temperature: 10.4 °C
- Final temperature: 12.7 °C
Step 2: Calculate the temperature change
ΔT = 12.7 °C - 10.4 °C = 2.3 °C
Step 3: Calculate the specific heat of the liquid (c)
We will use the following expression.
c = Q / m × ΔT
c = 14 cal / 12 g × 2.3 °C = 0.51 cal/g.°C
Answer:
Tienes que poner los elementos de las clasificaciones del agua y sus nombres.
Explanation:
no se explicar pero busca las clasificaciones del agua y las pones nada mas.
Answer:
D. The Church
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