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Contact [7]
4 years ago
12

An object resting on a table weighs 100 N. With what force is the object pushing on the table? With what force is the table push

ing on the object? Explain how you got your answer.
Chemistry
1 answer:
Marina86 [1]4 years ago
4 0

<u>Answer:</u> The force that the table is applying on the object will be 100 N.

<u>Explanation:</u>

We are given that ab object is applying a 100 N of force on the resting table and we need to find the force that the table is applying on the object. To find that we will follow Newton's Third Law, which states that:

For every action, there is an equal and opposite reaction.

This law means that for every interaction, two equal forces are acting on both the interacting objects in opposite direction.

Hence, the force that the table is applying on the object will be 100 N.

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Question 1
OLga [1]

Answer: 7 atm

Explanation:

According to Dalton's Law, the total pressure is the sum of all the individual gas pressures

Hence, Ptotal = P1 + P2 + P3

Since, Gas A = 2 atm

Gas B = 1 atm

Gas B = 4 atm

Ptotal = (2 + 1 + 4) atm

Ptotal= 7 atm

Thus, the total pressure of the gas mixture is 7 atmosphere.

3 0
3 years ago
Which of the following compounds are ionic?
julsineya [31]

Answer:

a. KCl, c. BaCl2 and e. LiF.

Explanation:

Hello,

In this case, we can identify the ionic compounds by verifying the difference in the electronegativity between the bonding compounds when it is 1.7 or more (otherwise it is covalent) as shown below:

a. KCl: 3.0-0.9=2.1 -> Ionic.

b. C2H4: 2.5-2.1=0.4 -> Covalent.

c. BaCl2: 3.0-0.8=2.2 -> Ionic.

d. SiCl4: 3.0-1.8=1.2 -> Covalent.

e. LiF: 4.0-1.0=3.0 -> Ionic.

Therefore, ionic compounds are a. KCl, c. BaCl2 and e. LiF.

Regards.

7 0
3 years ago
The number of polar covalent bonds in<br> NH₃ is?
bija089 [108]

Answer:

There are three covalent bonds existing between NH3. .

4 0
4 years ago
A change in matter that produces new substances is called a _____. 1.mixture 2.physical change 3.solution 4.chemical change
12345 [234]

Answer:

Chemical Change

Explanation:

chemical bonds within the substance have been altered because a new substance has been produced. It cannot be a mixture because they do not involve changes in matter, it cannot be a physical change because they do not result in new substances, it is not a solution because those do not involve changes in matter.

7 0
3 years ago
Which of the following elements has the lowest ionization energy?
lakkis [162]

Explanation:

Na

Na (gas) -> Na+ (g) + e-

8 0
3 years ago
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