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Reil [10]
3 years ago
15

Patrice walks 4.0 blocks east and then turns north and jogs 6.0 blocks. She then turns west and walks another 4.0 blocks. What i

s the distance she has traveled?
0.0 blocks
8.0 blocks
6.0 blocks
14.0 blocks
Chemistry
1 answer:
zvonat [6]3 years ago
8 0

Answer:

14.0 blocks  

Explanation:

Distance travelled

= 4.0 blocks + 6.0 blocks + 4.0 blocks

= 14.0 blocks

Patrice has travelled 14.0 blocks.

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5 0
3 years ago
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The ka of hypochlorous acid (hclo) is 3.0 ⋅ 10−8 at 25.0 °c. calculate the ph of a 0.0375m hypochlorous acid solution.
Scrat [10]
We can set up an ICE table for the reaction:                      
                      HClO          H+     ClO-
Initial              0.0375       0        0
Change         -x               +x      +x
Equilibrium    0.0375-x     x        x

We calculate [H+] from Ka:     
     Ka = 3.0x10^-8 = [H+][ClO-]/[HClO] = (x)(x)/(0.0375-x)

Approximating that x is negligible compared to 0.0375 simplifies the equation to         
     3.0x10^-8 = (x)(x)/0.0375     
     3.0x10^-8 = x2/0.0375     
     x2 = (3.0x10^-8)(0.0375) = 1.125x10^-9     
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in which 0.0000335 is indeed negligible compared to 0.0375.

We can now calculate pH:     
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6 0
3 years ago
Ca(hco3)2 molecular formula calculated​
GrogVix [38]

Answer:

C2H2CaO6

Explanation:

Ca same

H × 2

C × 2

O3 × 2

I hope this helps you :)

7 0
3 years ago
Two technicians are discussing the IAT sensor. Technician A says that the IAT sensor is more important to the operation of the e
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Answer:

Technician B.

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