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valentinak56 [21]
3 years ago
14

Chemical reactions can be detected by changes in:

Chemistry
1 answer:
Molodets [167]3 years ago
7 0
Chemical reactions can be detected by changes in temperature
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3 years ago
The H^1- ion is classified as a(n)________ and has _______.
nydimaria [60]
It's B, because a negative charged Ion is an anion. And since it's 1- ,one valence electron is been added to H. So it has 2 valence electrons. 
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3 years ago
18. Describe the relationship between kinetic energy and mass, and give an example of
lidiya [134]

Answer:

Kinetic energy is directly proportional to mass

Explanation:

Kinetic energy is directly proportional to the mass of an object and also directly proportional to the square of the velocity of that object:

E_k = \frac{1}{2} mv^2

Notice that if we keep velocity constant and only increase the mass of a object, the kinetic energy of that object would increase, as we've already emphasized the direct relationship between the kinetic energy term and the mass term.

Let's take a simple example: assume that object 1 and object 2 are both moving at the same velocity but object 1 has a much lower mass than object 2. According to the equation, object 1 has lower kinetic energy. This object can then transform all of its kinetic energy into some other form, say, heat the ground. The heat transferred will be significantly lower than by the object 2 moving at the same velocity but having a much greater mass.

5 0
4 years ago
How many moles are in 1.5 x 10^23 atoms of fluorine?
andrezito [222]

Answer:

0.052636002587839 moles

Explanation:

im not sure so sorry if u get it wrong...

4 0
3 years ago
Which is a characteristic of a strong base?
ikadub [295]
A characteristic of strong base is that 
<span>It removes H+ ions from solution.
</span>
A strong base can dissociate into ions that can react with an acid resulting to the removal of H+ ions from a solution. A weak base only dissociates partially which removes less H+ ions in a solution.
8 0
3 years ago
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