Answer: a. of carbon
b. of hydrogen
c. of oxygen
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number of particles.
To calculate the moles, we use the equation:
a) 1 mole of ethanol contains = of carbon
Thus 0.989 moles ethanol contains = of carbon
b) 1 mole of ethanol contains = of hydrogen
Thus 0.989 moles ethanol contains = of hydrogen
c) 1 mole of ethanol contains = of oxygen
Thus 0.989 moles ethanol contains = of oxygen
So there are basically five types of chemical reactions which have their general formulas.
They are:
1. Combination reaction
General formula : A+B = AB
2. Decomposition reaction
General formula: AB = A+B
3. Single displacement reaction
General formula: AB+C = CB + A
4. Double displacement reaction
General formula: AB+CD = CB+AD
5. Acid-base reaction
General formula: A+B = S+W
You should check and compare with examples.
Answer:
A. It has a partial negative charge on oxygen and a partial positive charge on hydrogen.
Explanation:
There is an electronegativity difference between O and H atoms. The electronegativity value of O and H are 3.5 and 2.1 respectively. So the electronegativity different of the O-H bond is 3.5- 2.1 = 1.4 thus making the O-H bond polar. O being the more electronegative bond acquires a partial negative charge and H acquires a partial positive charge.
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Answer: Mother has bb. Father has Bb.
Top left box= Bb
Top right box=bb
Bottom left box= Bb
Bottom Right box=bb
Why?
Mother has little b’s because the dominant trait would B would over power the b and give her browns eyes but she has blue so the answer is bb
Father has Bb because he has brown eyes and it says they are heterozygous meaning that he has a both the Dominant and recessive gene.
I hope this helped you :D