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UNO [17]
3 years ago
14

I will give brainliest. Which one of the choices below is the best definition of a force?

Chemistry
2 answers:
Furkat [3]3 years ago
6 0

Answer:

A. A push or pull on an object.

Explanation:

A force is a push or pull upon an object, which comes from the object's interaction with another object.

bezimeni [28]3 years ago
5 0

Answer:

A

Explanation:

a push or pull on an object

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Use the reaction below to balance the nuclear reaction equation.
Temka [501]

Answer:

neon-22

Explanation:

i got it right..have a great day.Jesus loves you<3

4 0
2 years ago
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Which term represents an intermolecular force in a sample of water?
Sergeu [11.5K]

Answer:

hydrogen bonding

Explanation:

5 0
3 years ago
Bacteria in the human mouth release enzymes to break up sucrose, and then polymerize glucose to form a bacterial plaque. When th
DochEvi [55]
Yes, people should be concerned because plaque buildup might cause your breath to smell bad, or cause your teeth to look very yellow, consider brushing your teeth and using mouth wash daily and don’t drink or eat unhealthy foods that will cause your teeth to look bad. plaque buildup might also cause damage to the stomach and maybe affect when you have to use the restroom.
5 0
3 years ago
In an experiment, 8.50 g of methane, CH4, was reacted with 15.9 g of oxygen gas to produce carbon dioxide and water. Determine t
exis [7]

Answer:

89.3 %

Explanation:

M(CH4) = 12+ 4*1 = 16 g/mol

M(O2) = 2*16 = 32 g/mol

M(CO2) = 12 + 2*16 = 44 g/mol

8.50 g * 1 mol/16 g = 0.5313 mol CH4

15.9 g * 1 mol/32 g = 0.4969 mol O2

9.77 g * 1 mol/44 g = 0.2220 mol CO2

1)                                  CH4        + 2O2 -----> CO2 + 2H2O

from reaction             1 mol          2 mol

given                       0.5313 mol   (0.4969 mol)

1 mol CH4              --- 2 mol O2

0.5313 mol  CH4  --- x mol O2

x= 2*0.5313 = 1.0626 mol O2

We can see that for given amount of CH4 we do not have enough O2, so O2 is a limiting reactant.

2)                               CH4        + 2O2 -----> CO2 + 2H2O

from reaction                             2 mol        1 mol

given                                      0.4969 mol   x mol

x = 0.4969*1/2 = 0.2485 mol CO2 theoretical yield

3)

Practical yield CO2 = 0.2220 mol

Theoretical yield CO2 = 0.2485 mol

% yield = (0.2220/0.2485)*100% = 89.3 %

7 0
3 years ago
Which quantity is equivalent to 1 millisecond?
rusak2 [61]

Answer:

C.   0.001 second

Explanation:

Millisecond is a subunit of a second.

 Milli depicts a unit to the power of 10⁻³

So;

       1 millisecond  = 10⁻³ s

Therefore,

           1 x 10⁻³   = 0.001s

The solution to this problem is choice C which is 0.001 second

3 0
2 years ago
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