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stellarik [79]
2 years ago
12

If a driver takes 30 min to get to the town market, which is 1.5 km away from his house, what is his average speed?

Chemistry
2 answers:
zvonat [6]2 years ago
8 0

Answer: 0.83 m/s

Linear motion consists of 2: constant velocity motion with constant velocity and uniformly accelerated motion with constant acceleration

alexira [117]2 years ago
3 0
Distance divided by time
Turn 30min to seconds (divided by 60)
1.5km/h: 0.5s =3km/h
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What type of element is fluorine
Serga [27]

Answer:

It is a halogen element

Explanation:

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4 0
3 years ago
Which of the following best defines a basic solution?​
In-s [12.5K]
D: a solution with a pH greater than 7
6 0
3 years ago
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Calculate the number of moles in the following: 2.8 X 10^24 atoms of Cl2
vova2212 [387]

Answer:

<h3>The answer is 4.65 moles</h3>

Explanation:

To find the number of moles given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

N = 2.8 × 10²⁴ atoms of Cl2

So we have

n =  \frac{2.8 \times  {10}^{24} }{6.02 \times  {10}^{23}  }  \\  = 4.65116279069...

We have the final answer as

<h3>4.65 moles</h3>

Hope this helps you

7 0
3 years ago
A substance has a atomic number of 80.How many protons and electrons do atoms of the substance have ?what is the substance
Anarel [89]

Answer: Substance is Mercury (Hg)

              number of protons = 80

              number of electrons = 80

Explanation:

Atomic number which is symbolized by "Z" is the number of protons in nucleus of an atom.

Hence,

     number of protons = atomic number = 80

  • By knowing atomic number, we can find the element by using periodic table. Since the atomic number 80, the element is Mercury (Hg).

If the substance is in its neutral state, which means there is no charge on it, then the number of protons equals to the number of electrons of that element.

Hence,

   number of electrons = number of protons = 80


4 0
4 years ago
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Helen [10]

Answer:

through water

Explanation:

5 0
3 years ago
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