At what speed does all electromagnetic radiation travel?

Chemistry

1 answer:

Mkey [24]4 years ago

5 0

3.0
10 to the power of 8

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Match the element with its number of valence electrons. Match Term Definition: Helium Aluminum Fluorine Sodium A) 1 B) 2 C) 3 D)

wariber [46]

Helium- 2

Aluminum- 3

Fluorine- 7

Sodium- 1

Hope I helped.

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3 years ago

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What is the common name of the following compound

Masja [62]

Hey there!

Here is your answer:

The proper answer to this question is option D "sec-butyl bromide".

Reason:

Sec-butyl bromide looks often like this:

Therefore the answer is option D!

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

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Uma indústria de confecção de placas de alumínio deseja transportar 100 placas de alumínio para um cliente. Considerando que o v

Bogdan [553]

Questions:

The questions or computes to do are:

a- a massa, em kg, de cada placa de alumínio;

b- a quantidade mínima de viagens necessárias para que apenas um veículo de transporte entregue o material solicitado ao cliente.

Dado: densidade do alumínio = 2,7 g/cm3

Answer:

a) mass in kg of every aluminum plate

Dimensions of every aluminum plate: 
2 M X 50 Cm X 2cm

Volume: 200 cm * 50 cm * 2 cm = 20,000 cm^3

Mass:

density = mass / volume => mass = density * volume = 2.7 g/cm^3 * 20,000 cm^3 = 54,000 g = 54 kg.

Answer: the mass of everyplate of aluminum is 54 kg.

b) number of travels required for one truck deliver all the material:

number of travels = amount requested / amount that a truck can deliver in one travel.

amount requested: 100 plates

mass of 100 plates = 100 plates * 54 kg / plate = 5,400 kg

limit of transport per travel: 3 tons = 3,000 kg

number of travels = 5,400 kg / 3,000 kg/travel = 1.8 travels => 2 travels.

Answer: at least 2 travels.

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Leni [432]

The answer would be C

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Dmitry [639]

this is the answer is

Zn + HCl = ZnCl2 + H2

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