2 years ago

The number of valence electrons from the left to right across a period.

Chemistry

1 answer:

Nesterboy [21]2 years ago

4 0

Answer:

They decrease did the problem

Explanation:

did already if it helps can i have brain pls?

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3 years ago

Draw a resonance structure for the cyclopentadienyl anion. Be sure to show all non-bonding electrons and charges explicitly.

Gennadij [26K]

Answer:

The resonance structure for the cyclopentadienyl anion is shown in the drawing below.

Explanation:

The resonance representation of the cyclopentadienyl anion shows that it is a stable ion. On the other hand it is important to note that it has 6 π electrons and is aromatic.

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3 years ago

What are complementary pigment colors?

Lisa [10]

Answer:B

Explanation:

omplementary colors are two opposing colors that can be found on the color wheel.

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3 years ago

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When 24g of magnesium metal is heated in air, 40g of magnesium oxide is produced. What mass of magnesium would be needed in orde

inysia [295]

Answer: 6.1 g

Explanation:

between Mg and MgO theres a 1;1 MOLE RATIO

here's the balanced equation

2Mg + O2 ==> 2MgO

24g of magnesium is approximately 1 mole of magnesium so it produces 40 g of mgo which is also 1 mole of mgo thus 10/40 =0.25 moles of MgO so 0.25 moles of magnesium would be needed which is approximately 6.1 g

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3 years ago

What is the wavelength of light with 4.01 x 10^-19 J of energy? (The speed of light in a vacuum is 3.00 x 10^8 m/s, and Planck's

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3 years ago