Answer:
is wrong as she fogot to do something at the start and it is not a fair test
Explanation:
first she need to use the same with in plate second she needs to make the weighs not measure the dish third when the weighs are on 0 put your ingredient on
ps i have dislexia
Answer:
The correct answer is A.
Explanation:
The acids with hydrogen atoms in them are the ones that dissolve best in water and when they do, they get diluted, raising their pH level by releasing hydrogen ions (H+) into the solutions.
So when acids get dissolved in water, positively charged hydrogen atoms are released.
The answer is A.
I hope this helps.
Answer:
1.03 grams / mL
Explanation:
Mass of beaker and sample liquid = 84.64
Mass of beaker = <u>32.344</u>
Mass of the sample (subtract) = 52.296
Don't do any rounding until you are finished.
mass = 52.296 grams
volume = 50.6 mL
density = mass / volume
density = 52.296/50.6
density = 1.034 grams / mL
Rounding
The volume only has 3 dig digs
So the answer is 1.03 grams / mL
Answer:
1 km * 1000 m / km * 100 cm / m = 10^5 cm / km
V = 4 / 3 pi R^3
V = 4 / 3 * pi * (7.01 * 10^5 * 10^5)^3 = 4 / 3 pi * 344 * (10^10)^3
V = 1.443^10^3 * 10^30 = 1.44 10^33cm^3
Answer:
a) The carbon-carbon bonds rapidly alternate between single and double bonds.
Explanation:
In benzene we have that the molecule is planar with an sp² hybridization that allow for three π bonds and the carbons atoms are also bonded together via sigma a sp² hibridization as well as one hydrogen atom. The alternation of or conjugation of the π bond allow the delocalization of these electron along the whole ring.
Therefore, a) is false the carbon-carbon bonds rapidly alternate between single and double bond. The electrons in the π bonds are completely delocalized through the six atoms in the ring.
b) is true since we have a sp² hybridization.
c) and d) are true for the reasons given previously.