I think Batteries you can connect a batteries to a circuit and reaction between chericals
Answer:
C. 0.50 mol
Explanation:
Number of mole= mass /molar mass
Mass of KF is given as 29g
The molar mass of KF= 39+19= 58g/mol
No of mole= mass/ molar mass
= 29g/58g/mol
1/2 mol= 0.5 mol
The answer is 0.6492 atm. The given quantity 65.78 kPa is multiplied by a conversion factor in which the numerator and denominator are equal, hence, it is like multiplying by 1 which does not change the given value. To convert kPa to atm, we use the conversion factor 1 atm = 101.325 kPa. Therefore,
65.78 kPa (1 atm/101.325 kPa) = 0.6492 atm
Answer:
Double covalent bonds in carbon dioxide
Explanation:
The compound shown in the image is carbon dioxide. Carbon, the central atom in the molecule is bonded to two oxygen atoms. Carbon shares four electrons with each oxygen atom. The carbon atom is sp hybridized while the two oxygen atoms are sp2 hybridized.
The carbon atom is attached to each oxygen atom via a double covalent bond which implies the sharing of four electrons. Two electrons form the sigma bond while the other two electrons are shared in the pi bond thereby giving the double covalent bind indicated by the lines in the structure of the molecule.