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Alexus [3.1K]
3 years ago
7

An element or compound which occurs naturally in the earth is a alloymineralrock.

Chemistry
1 answer:
elena-s [515]3 years ago
3 0
Minerals naturally occur.
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If an unknown element displays many extremely strong metallic properties, where is it most likely to be located on the periodic
Rudiy27

Answer : Option D) far left.

Explanation : If an unknown element displays many extremely strong metallic properties, where is it most likely to be located on the far left of the modern periodic table.

In the modern periodic table, the metallic character of the elements decreases across the periods in the periodic table from left to right. This occurs because the elemental atoms more readily accept electrons to fill their valence shell than losing them to remove the unfilled shell. Also, the metallic character increases down the groups in the periodic table. So, it is clear that the elements found on the far left are having high metallic properties in them.

8 0
3 years ago
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What is the simplest whole-number ratio of atoms in a molecule or formula unit called?
snow_tiger [21]

Answer:

the empirical formula

Explanation:

I remember learning this last year.

5 0
3 years ago
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7 0
3 years ago
How do you know the ph level of 10^-8
sergiy2304 [10]

pH=6.98

Explanation:

This is a very interesting question because it tests your understanding of what it means to have a dynamic equilibrium going on in solution.

As you know, pure water undergoes self-ionization to form hydronium ions, H3O+, and hydroxide anions, OH−.

2H2O(l]⇌H3O+(aq]+OH−(aq]→ very important!

At room temperature, the value of water's ionization constant, KW, is equal to 10−14. This means that you have

KW=[H3O+]⋅[OH−]=10−14

Since the concentrations of hydronium and hydroxide ions are equal for pure water, you will have

[H3O+]=√10−14=10−7M

The pH of pure water will thus be

pH=−log([H3O+])

pH=−log(10−7)=7

Now, let's assume that you're working with a 1.0-L solution of pure water and you add some 10

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3 years ago
I NEED HELP ASAP WILL MARK BRAINLIEST!!!
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The answer is b.) Levi crosses a horse with a donkey to a create a mule. The mule is stronger than both of its parents.
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