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Mrac [35]
4 years ago
8

What term is used to describe a testable modle

Chemistry
1 answer:
PilotLPTM [1.2K]4 years ago
3 0
Well i think the answer to that is theory
You might be interested in
Solve pls brainliest
inna [77]

Answer:

Explanation:

The two green substances are not the same.  Most of their properties are different, except some are alike.  Since not all of their properties are matching, they are not the same substance.

I am not sure if this is what you were looking for, but if it is then I am happy to help.  

7 0
3 years ago
How many molecules of nitrogen gas are in 15 L of nitrogen gas
uranmaximum [27]

Answer:

3.98\times 10^{23}

Explanation:

Since we have $N_A$ number of molecules in 22.4 L, in 15 L we have:

$\frac{15}{22.4}\times 6.023 \times 10^{23}$ molecules.

5 0
3 years ago
The mass of a piece of iron is 39 g and its volume is 5 cm. What is its
klio [65]

Answer:

D

Explanation:

Divide the mass by the volume.

3 0
3 years ago
Hey guys, I was wondering if you could give me an explanation on aqueous electrolysis.
Crazy boy [7]
Aqueous compounds are a mixtures of two electrolytes – the compound and water.

Does this help a little?
6 0
3 years ago
draw the lewis structure for CO2, H2CO3, HCO3-, and CO3 2-.Rank these in order of increasing attraction to water molecules. Expl
gavmur [86]

Answer:

The structures are attached in file.

Hydrogen bonding and intermolecular forces is the reason for ranks allotted.

Explanation:

In determining Lewis structure, we calculate the overall number of valence electrons available for bonding.  Making carbon (the least electronegative atom) the central atom in the structure, we allocate valence electrons until each atom has achieved stability.

In order of decreasing affinity to water molecules:

CO_{3}^{2-}  > HCO_{3} ^{2-} > H_{2} CO_{3}

This is due to the fact that the CO_{3}^{2-}will accept protons more readily than the bicarbonate ion, HCO_{3} ^{2-}. Carbonic acid, H_{2} CO_{3} will not accept any more protons, hence it is the least attractive to water molecule, even though soluble.

3 0
3 years ago
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