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Paladinen [302]
3 years ago
7

Fine-grainted igneous rocks form?

Chemistry
1 answer:
Harman [31]3 years ago
5 0
In molten lava like all the rest.

Hope it helped!!!
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A given mass of oxygen occupies 500 ml when the
matrenka [14]
Ok we can use boyle’s law (stating that P is proportional to V) to make the equation (P1V1) =(P2V2).
once we’ve done this, we can plug in the numbers:
(800•500) = (200•V2)
and then we get that
V2= 2000 ml

hope this helps!! :)
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3 years ago
Do the number of atoms change in a chemical reaction?<br> I will give brainliest
padilas [110]

Answer:

No.

Explanation:

The reason comes the <em>Law of Conservation of Mass</em>.

In an ordinary chemical reaction, <em>you cannot create or destroy atoms</em>.

So, you must have as many atoms at the beginning of a reaction (in the reactants) as at the end (in the products)

We use this principle to balance chemical equations.

For example, the equation for the formation of water from hydrogen and oxygen is

2H₂ + O₂ ⟶ 2H₂O

There are four atoms of H and two of O both before and after the reaction.

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Where was cell theory discovered ?
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Cell theory was discovered from the scientist
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3 years ago
What is the single factor that classifies an element as a transition metal? Question 16 options:
alukav5142 [94]
A...Just got it right on my exam:)
4 0
3 years ago
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Magnesium is a metal with two elections in its outermost energy level. When it becomes an ion, what happens to its valence elect
Law Incorporation [45]

Answer:

The answer to your question is Mg loses its valence electrons and acquire a positive charge (Mg⁺²).

Explanation:

Valence electrons are important for an element to attach to another one, metals lose these electrons while nonmetals gain electrons to complete the octet rule.

Magnesium is a metal that loses these electrons so when it becomes an ion Magnesium will have a positive charge  Mg⁺².

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3 years ago
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