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o-na [289]
3 years ago
15

What are abiotic factors HELP FAST PLEASE!!!!!!!!! FIRST ONE GIVEN BRAINLIEST AND 50 POINTS

Chemistry
2 answers:
kifflom [539]3 years ago
6 0
The answer is C. I am very sure
Zepler [3.9K]3 years ago
6 0

Answer:

Totally D

Explanation:

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Which chemical substance has the highest melting point? a) gold b) water c) oxygen d) mercury
gavmur [86]
Gold! it's boiling point is 2807 according to this chart:
http://www.lenntech.com/periodic-chart-elements/boiling-point.htm
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3 years ago
Read 2 more answers
Chlorine and bromine are elements in Group VII.
Goryan [66]

Explanation:

Bromine is a chemical element with the symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured vapour. Its properties are intermediate between those of chlorine and iodine. Isolated independently by two chemists, Carl Jacob Löwig (in 1825) and Antoine Jérôme Balard (in 1826), its name was derived from the Ancient Greek βρῶμος ("stench"), referring to its sharp and disagreeable smell.

Bromine, 35Br

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3 years ago
What is the <br>formula and valency of <br> thiosulphate ​
tatuchka [14]
Formula: NA2S2O3. Valency: 2
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3 years ago
An atom has 81 electrons, 84 neutrons, and 82 protons. What element is this atom?
posledela

Answer:

Lead

Explanation:

The subatomic particles within an atom can be used to know the atom or element given.

Of particular interest is the number of protons within the atom.

The periodic table is based on the atomic number of atoms. This atomic number is the number of protons within an atomic space.

So; If we know the number of protons within an atom, we can know the element.

The number of protons given is 82, the element is  therefore lead.

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When an atom gains an electron,what charge does the ion have
irakobra [83]

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if an atom gains an electron, the ion has negetive charge

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3 years ago
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