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Genrish500 [490]
3 years ago
6

Why is it difficult to construct a lewis dot structure for the molecule no?

Chemistry
1 answer:
MAVERICK [17]3 years ago
3 0
It doesn't obey the octet rule.
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Which of the following elements has the highest atomic radius, Sr or Cu
cestrela7 [59]

Answer:

Sr or Strontium

Explanation:

sr: strontium has atomic radius of 255pm

cu: copper has an atomic radius of 128pm

they teach you in chem how to do it based off the chart but I don't remember that method

6 0
2 years ago
How many molecules Of H20 are<br> equivalent to 97.2 g H20?<br> (H = 1.008 g/mol, O = 16.00 g/mol)
AleksandrR [38]

Answer:

m(H₂O) = 97,2 g.n(H₂O) = m(H₂O) ÷ M(H₂O).n(H₂O) = 97,2 g ÷ 18

Explanation:

8 0
2 years ago
Carbon-12 and carbon-14 are isotopes of carbon. Scientists can compare the ratio of
AlladinOne [14]

Answer:

I'm pretty sure the answer is B.

Explanation:

I hope this helps

7 0
2 years ago
Do you think thermal expansion affects all states of matter or just the solid? Explain your thinking.
torisob [31]

Answer:

All three states of matter (solid, liquid and gas) expand when heated. The atoms themselves do not expand, but the volume they take up does.

When a solid is heated, its atoms vibrate faster about their fixed points. The relative increase in the size of solids when heated is therefore small. Metal railway tracks have small gaps so that when the sun heats them, the tracks expand into these gaps and don’t buckle.

Liquids expand for the same reason, but because the bonds between separate molecules are usually less tight they expand more than solids. This is the principle behind liquid-in-glass thermometers. An increase in temperature results in the expansion of the liquid which means it rises up the glass.

Molecules within gases are further apart and weakly attracted to each other. Heat causes the molecules to move faster, (heat energy is converted to kinetic energy) which means that the volume of a gas increases more than the volume of a solid or liquid.

However, gases that are contained in a fixed volume cannot expand - and so increases in temperature result in increases in pressure.:

5 0
3 years ago
Bond angle of ch4 and sih4
miskamm [114]
Bond angle of ch4 = 109.5
3 0
3 years ago
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