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Effectus [21]
3 years ago
6

PLEASE HELP AND THANKS

Chemistry
1 answer:
Kamila [148]3 years ago
4 0

Answer:

torque =force*distance

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A mystery element contains 11 electrons. Which group of the periodic table will it belong to?
serious [3.7K]
There are 18 Elements in the fifth period.
7 0
3 years ago
Mechanical waves travel fastest through<br> A -Solid<br> B -Liquid<br> C -Gas<br> D -Vacuum
GalinKa [24]

Answer:

A-Solid

Explanation:

Waves travel faster in solids & slowest in gases

8 0
3 years ago
How many chiral centers does clavulanic acid have?
VikaD [51]

Answer:

Clavulanic acid has two (2) chiral centers.

Explanation:

A chiral center is a center (usually carbon) with four different substituents.

The structure of clavulanic acid is shown in the attachment below.

Consider the labeled diagram in the attachment,

Carbon A is not a chiral carbon because it has two hydrogen atoms attached to it

Carbon B is not a chiral carbon because it has only three substituents

Carbon C is a chiral carbon because it has four different substituents

Carbon D is a chiral carbon because it has four different substituents

Carbon E is not a chiral carbon because it has only three atoms directly attached to it

Carbon F is not a chiral carbon because it has only three atoms directly attached to it

Carbon G is not a chiral carbon because it has two hydrogen atoms attached to it

Carbon H is not a chiral carbon because it has only three substituents

Then, only carbons C and D are chiral carbons.

Hence, clavulanic acid have two (2) chiral centers.

7 0
3 years ago
What is the percentage error of length measurement of 0.229cm if the correct value is 0.225cm
Mars2501 [29]

Percent error is the difference between the measured and known value, divided by the known value, multiplied by 100%.

So first, we take our measured value, .299 cm, minus our known value, .225 cm.

.299 cm - .225 cm=.004 cm

Next, we divide that by our known value

\frac{.004}{.225}=.0177777778

Finally, multiply your answer by 100

.0177777778 x 100= 1.77777778 %

Round to three significant figures, and you're done.

=1.78 % error



5 0
3 years ago
Read 2 more answers
What two things effect the amount of kinetic energy an object has?
marta [7]

Answer:

mass and speed

Explanation:

the motion of an object depends on how fast it's travelling and also how much mass it has

3 0
3 years ago
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