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11111nata11111 [884]
3 years ago
5

5 lists of physical change

Chemistry
1 answer:
Alecsey [184]3 years ago
6 0
Crushing a can, breaking glass, cutting paper, boiling water, chopping wood, and mixing water and sand
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Which of the following species cannot act as a Lewis base?
gayaneshka [121]

Answer:

NH4+

Explanation:

A Lewis base is a substance with the ability to share or give pairs of electrons.

The NH4 + ammonium ion donates a proton, therefore the ammonium ion is a Lewis acid.

6 0
3 years ago
ILL GIVE BRAINLY, 5 STARS , FOLLOW AND HEARTS
Jlenok [28]

Answer:

Second one

Explanation:

I think it's the second cause there's no energy w/o heat. So it's the second.

6 0
2 years ago
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What type of telescope can you use in a bedroom?
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Is the answer because of the ratio of you fart and the smell in ur nose
8 0
2 years ago
Please show the work :(What is the estimated force applied to the box if the acceleration is .40 m/s2?
lara31 [8.8K]

Answer:

20N

Explanation:

Given parameters:

        Force(N)     Acceleration(m/s²)  

            10                   0.2

           ?                      0.4

Unknown:

The force applied when the acceleration is 0.4m/s²

Solution:

From newton's second law of motion;

 Force = mass x acceleration

 Since we are using the same box, let us find the mass of the box;

      Force  = mass x acceleration

         10 = mass x 0.2

            mass = \frac{10}{0.2}  = 50kg

Now,

 The force in the second instance will be;

      Force  = 50 x 0.4  = 20N

8 0
2 years ago
Did democritus belive atoms retain there identity as a chemical reaction
mihalych1998 [28]
No He believed tiny particles were invisible and couldn't be changed....So No The person that believed in this was Dalton .
4 0
3 years ago
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