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JulsSmile [24]
3 years ago
12

a gas station off of the highway in rural iowa was robbed at 1:45am this past saturday the robbers were seen breaking in on secu

rity cameras at 1:45am and leaving at 1:49 am however they were wearing masks and could not be identified the gas station is between two different motion activated cameras on the highway during this time in question only 3 cars traveled down the road coincidentally they were all the same make and model though each of these cars were unique and could only travel at one constant speed whenever they were moving that is why the police officers need your help using what you know about speed determine if any or all of these cars could have been able to pull off this crime your job is to prove each car either innocent or guilty of possibly committing this crime for each car you will provide a drawing and calculation depicting what it was doing during the time of the crime this will help assist police officers in identifying the correct robber
Chemistry
1 answer:
alexandr1967 [171]3 years ago
8 0
Is this a question or do you need a legitimate answer of something? If so please "add more details".
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What is the [H+] concentration of a solution with a pH of 3.78
lianna [129]

Answer:

[H+] = 1.66 x 10^{-4}

Explanation:

To find the [H+] concentration of a solution, we can use the formula:

[H+] = 10^{-pH}

Let's plug in the pH.

[H+] = 10^{-3.78}

Evaluate the exponent.

[H+] = 1.66 x 10^{-4}

Hope this helps!

6 0
3 years ago
How many grams of Mg(NO3)2 would be produced? please show how you got the answer​
Len [333]

Answer:

148 grams of relative atomic mass

Explanation:

magnesium atomic mass : 24

nitrogen : 14

oxygen : 16

24 × 1

14 × 1 × 2

16 × 3 × 2

24 + 28 + 80 = 148 grams

7 0
3 years ago
What is the oxidation state of cr in CrPO4 and Cr3(PO4)2?
soldi70 [24.7K]

Answer:

Explanation:

Oxidation state of Cr in CrPO₄

As a general rule, the algebraic sum of all the oxidation numbers of all atoms in a neutral compound is zero.

The compound above is in its neutral state and we sum all the oxidation numbers and equate to zero:

The oxidation number of P is -2

                                           O is -2

Let the oxidation number of Cr be x:

                              x + (-2) + 4(-2) = 0

                              x -2-8 = 0

                               x -10 = 0

                                x = +10

For Cr in Cr₃(PO₄)₂

         Using the same rule:

        2(x) + 2[-2 + 4(-2)] = 0

           2x + 2(-2-8) = 0

            2x -20 = 0

                x = +10

6 0
3 years ago
Read 2 more answers
The ability to do work is.....<br><br> matter<br><br><br><br> energy<br><br> molecules
abruzzese [7]

Answer:

energy

energy is the reason why people can do things

6 0
3 years ago
True or false. Large covalent molecules with the same molecular formula or more likely to have identical angles between orbitals
Alexeev081 [22]
True, because the large covalent molecules would combine with the others
6 0
4 years ago
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