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ZanzabumX [31]
3 years ago
15

Which of these are common to all mammals?

Chemistry
1 answer:
kow [346]3 years ago
8 0
The answer is D kidneys liver skeletal structure
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Which product of petroleum is normally used as fuel in cars and light vehicles​
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Answer:

mostly gasoline in cars nowadays

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NaCl+AgC2H3O2--&gt; NaC2H3O2+AgCl <br><br><br> what is this balanced
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It is already balanced equation

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________________ is 'The movement of a liquid up a narrow tube due to adhesive affects.'
jolli1 [7]

Answer: capillary action

Explanation: it occurs when the adhesion forces (attraction between two surfaces or substances) in the liquid are stronger than the cohesion forces (attraction between the same molecule)

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3 years ago
Identify the group number of following oxides/hydrides in Mendeleev
Ivan

Answer:

See explanation

Explanation:

The oxides or hydrides are formed by exchange of valency between the two atoms involved. The group of the atom bonded to oxygen or hydrogen in the binary compound can be deduced by considering the subscript attached to the oxygen or hydrogen atom.

Now let us take the journey;

R2O3- refers to an oxide of a group 13 element, eg Al2O3

R2O - refers to an oxide of group a group 1 element e.gNa2O

RO2 - refers to an oxide of a group 14, 15 or 16 element such as CO2, NO2 or SO2

RH2 - refers to the hydride of a group 12 element Eg CaH2

R2O7 - refers to an oxide of a group 17 element E.g Cl2O7

RH3- refers to a hydride of a group 13 element E.g AlH3

5 0
3 years ago
What is a formula for sodium nitrate
Inessa [10]

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NaNO3

Explanation:

sodium= Na

Nitrogen= N

and there's 3 oxygens = O3

8 0
2 years ago
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