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Juliette [100K]
3 years ago
6

In the image above, the girl is using her arm to lift a weight. Her arm is acting as a _______.

Chemistry
1 answer:
sergij07 [2.7K]3 years ago
3 0
B the girls arm will act as a pulley
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Find the molar mass and the mass of 5.0000 mol of each of the following compounds. a. calcium acetate, Ca(C2H3O2)2
Vadim26 [7]

Answer:

molar mass is 158g and the mass of 5moles is 790g

Explanation:

this is becasuse  i added the atomic mass of each of the elements in the compound and also taking note of their subscript.the i multiply the molarmass by 5 for 5moles of the compound

8 0
3 years ago
The size of earthquakes is usually measured using the moment magnitude scale, which is a measure of the energy released.
meriva

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The atmosphere insulates the planet by trapping in
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14. How many liters would 5 moles of oxygen gas take up?
andrew-mc [135]

Answer:

a 0.22L

Explanation:

8 0
3 years ago
Read 2 more answers
Step 2: Now that you have counted the atoms on each side, add coefficients to balance the equation. Check your work by updating
Alja [10]

Answer:

The answers to your questions are given below.

Explanation:

__ NaBr + CaF₂ —> __ NaF + CaBr₂

The above equation can be balance as follow:

NaBr + CaF₂ —> NaF + CaBr₂

There are 2 atoms of F on the left side and 1 atom on the right side. It can be balance by writing 2 before NaF as shown below:

NaBr + CaF₂ —> 2NaF + CaBr₂

There are 2 atoms of Na on the right side and 1 atom on the left side. It can be balance by writing 2 before NaBr as shown below:

2NaBr + CaF₂ —> 2NaF + CaBr₂

Now, the equation is balanced.

Atom >>>> Reactant >>>> Product

Na >>>>>> 2 >>>>>>>>>>> 2

Br >>>>>>> 2 >>>>>>>>>>> 2

Ca >>>>>> 1 >>>>>>>>>>>> 1

F >>>>>>> 2 >>>>>>>>>>>> 2

5 0
2 years ago
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