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zhenek [66]
3 years ago
15

Amber is a precious material used in jewelry. It forms when the resin of pine trees hardens into stone. Is amber a mineral

Chemistry
1 answer:
lyudmila [28]3 years ago
5 0
Amber is not a mineral because amber is a hardened resin of specific species of ancient trees which has been fossilized over many years.

hope this helps!
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Which of the following is not the unit of speed?
vitfil [10]

Answer:

d and c

Explanation:

that is just the answer

7 0
2 years ago
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stealth61 [152]
One difference is that some animals are polyp and some are medusa.


The other difference is that some animals have medusa in their life or polp in their life cycle.


Hope these two differences helps :D
5 0
3 years ago
A gas has a volume of 3L at 200 kPa. What will its volume be if the pressure is changed to 500 kPa?
marta [7]

Answer:

6L

Explanation:

<em>if it's 3L per 200kPa</em>

then it would be;

4L per 300kPa

5L per 400kPa

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that's how i'd work it out in my head, hope it helps, but not sure though!

5 0
3 years ago
Many classic experiments have given us indirect evidence of the nature of the atom. Which of the experiments below did not give
taurus [48]

The Rutherford experiment proved the Thomson “plum-pudding” model of the atom to be essentially correct did not give the results described and is denoted as option A.

<h3>What is Thomson “plum-pudding” model?</h3>

This model was proposed by J.J Thomson in which referred an atom as a sphere of positive charge, and negatively charged electrons are embedded in it to balance the total positive charge.

This model was incorrect and the Rutherford atomic model was adopted in which he described the electrons orbits about a tiny positive nucleus.

The nucleus contains protons and neutrons instead thereby making it the correct choice.

Read more about Atom here brainly.com/question/6258301

#SPJ1

The options include the following:

a.The Rutherford experiment proved the Thomson “plum-pudding” model of the atom to be essentially correct.

b.The Rutherford experiment was useful in determining the nuclear charge on the atom.

c.Milikan’s oil-drop experiment showed that the charge on any particle was a simple multiple of the charge on the electron.

d.The electric discharge tube proved that electrons have a negative charge

4 0
1 year ago
Why is petroleum called liquid gold?
lana66690 [7]

Answer:

It is called liquid gold because of its high price and value and its economic need by all the countries worldwide.

Explanation:

Petroleum is present in abundant quantity in the some regions . So it is considered as Liquid gold, which they value a lot.

3 0
3 years ago
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