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Alik [6]
3 years ago
7

18 POINTS I'LL DO BRAINLIEST Which is the best reason for not using a moving car as a reference point?

Chemistry
1 answer:
Butoxors [25]3 years ago
8 0

Answer: D

Explanation:you would want to use a stagnant object for point of reference

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Is pyrophoric a chemical or physical property
Neporo4naja [7]

Answer:

Pyrophoricity is a property of metals and oxides of lower oxidation states, including radioactive ones, in which they spontaneously ignite during or after stabilization.

5 0
3 years ago
How could you distinguish a compound from a mixture​
ehidna [41]

Answer:

<h3>Compound are substances which can be formed by chemically combining two or more elements. Mixtures are substances that are formed by physically mixing two or more substances.</h3>

7 0
2 years ago
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What is an element that has more valence electrons than fluorine and less energy levels than sodium?
Radda [10]
From the periodic chart the only element between F and Na is Neon. Neon has one more valence electron 8 than fluorine 7, and is one energy level shy of Na.<span>
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5 0
2 years ago
Where are the most reactive metals located?
Lapatulllka [165]

Answer:

option B = lower left of the periodic table

Explanation:

The most reactive metals are located at the bottom left corner of periodic table. These metals are reactive in the sense that they can react with water very easily.

Examples include lithium, sodium potassium. As we move down the group in this column metallic character increase. Their atomic radius also increases and electron can easily donated. which means metals became more reactive.

These metals can also react very easily with O2 in atmosphere that's way these are stored in inert atmosphere. The most reactive metal in periodic table is francium.

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2 years ago
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The atomic number of an element:
Novosadov [1.4K]

Answer:The atomic number (represented by the letter Z) of an element is the number of protons in the nucleus of each atom of that element. An atom can be classified as a particular element based solely on its atomic number. For example, any atom with an atomic number of 8 (its nucleus contains 8 protons) is an oxygen atom, and any atom with a different number of protons would be a different element. The periodic table (see figure below) displays all of the known elements and is arranged in order of increasing atomic number. In this table, an element's atomic number is indicated above the elemental symbol. Hydrogen, at the upper left of the table, has an atomic number of 1. Every hydrogen atom has one proton in its nucleus. Next on the table is helium, whose atoms have two protons in the nucleus. Lithium atoms have three protons, beryllium atoms have four, and so on.

Explanation:

it could not be the right answer

3 0
2 years ago
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