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Serga [27]
2 years ago
12

12 Which is an example of a pulley? A.shoes B.fork C.stairs D. a stapler​

Chemistry
1 answer:
k0ka [10]2 years ago
3 0
The correct answer is c, stairs. because it makes the most sense, correct me if i’m wrong though please :)
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What is the formula for Silver (I) chloride?
Kisachek [45]
The formula for Silver (I) chloride is: AgCl
6 0
3 years ago
Read 2 more answers
Which of the following atoms has the greatest atomic radius? Oxygen (o) fluorine (F) Chlorine (CL) Carbon (C)
Andrei [34K]

Periodic Trend:

The Atomic radius of atoms generally decreases from left to right across a period

Group Trend:

The atomic radius of atoms generally increases from top to bottom within a group. As atomic number increases down a group, there is a increase in the positive nuclear charge, however the co-occurring increase in the number of orbitals wins out, increasing the atomic radius down a group in the periodic table

Answer :

The Atom with the greatest atomic radius is chlorine. Fluorine can be ruled out because it is in the same period as oxygen and further to the right down the period. Chlorine has the largest atomic size because it is farthest down the group of any of the above elements listed.  

5 0
3 years ago
How many moles of N2O5 are needed<br> to produce 7.90 g of NO2?
Roman55 [17]

Answer:

0.085 moles of  N₂O₅ are needed

Explanation:

Given data:

Mass of NO₂ produces = 7.90 g

Moles of N₂O₅ needed = ?

Solution:

2N₂O₅       →     4NO₂  + O₂

Number of moles of NO₂ produced :

Number of moles = mass/ molar mass

Number of moles = 7.90 g/ 46 g/mol

Number of moles = 0.17 mol

now we will compare the moles of NO₂   with N₂O₅.

                NO₂          :       N₂O₅

                  4            :          2

                0.17          :         2/4×0.17 = 0.085 mol

Thus, 0.085 moles of  N₂O₅ are needed.

4 0
3 years ago
if a gas is moved from a large to a small container but its temperature in numbers of moles what would happen pressure of the ga
andreyandreev [35.5K]
The pressure will increase.

3 0
3 years ago
Disagree or agree n provide evidence !!! pls n thank you​
stealth61 [152]

Answer: True

Explanation: There are many different types of reactions that can occur during a chemical reaction, a substance dissolving is one of them! often you will notice the following: fizzling, bubbles, color change, odor being produced, smoke. etc.

5 0
3 years ago
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