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3 years ago

Which of these periods contain elements with electrons in s, p, d, and forbitals?

Chemistry

2 answers:

yarga [219]3 years ago

7 0

Answer:

The periods that would contain elements with electrons in s, p, d, and f orbitals are periods 6-7

Explanation:

vodka [1.7K]3 years ago

5 0

Answer:

I learnt k,l,m

Explanation:

so 1-3periods have klm and after that klmn

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2 years ago

What happened when bromine reacted with aluminum?

-Dominant- [34]

Answer:

The reaction begins and builds up heat. This heat causes the aluminum to melt and float on top of the liquid bromine. Wherever the two elements meet, sparks, heat, and light are given off.

Explanation:

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2 years ago

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3 years ago

Read 2 more answers

Copper metal has a specific heat of 0.385 J/goC. Calculate the amount of heat required to raise the temperature of 22.8 g of Cu

Liula [17]

Answer is equal to 7.51 kJ

Q=mc(delta)T

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2 years ago

An experiment reveals that 125.0 grams of an unknown metal increases in temperature from 22.0 oC to 43.6 oC upon absorbing 640 j

nydimaria [60]

Answer:

Cp = 0.237 J.g⁻¹.°C⁻¹

Explanation:

Amount of energy required by known amount of a substance to raise its temperature by one degree is called specific heat capacity.

The equation used for this problem is as follow,

Q = m Cp ΔT ----- (1)

Where;

Q = Heat = 640 J

m = mass = 125 g

Cp = Specific Heat Capacity = ??

ΔT = Change in Temperature = 43.6 °C - 22 °C = 21.6 °C

Solving eq. 1 for Cp,

Cp = Q / m ΔT

Putting values,

Cp = 640 J / (125 g × 21.6 °C)

Cp = 0.237 J.g⁻¹.°C⁻¹

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3 years ago