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3 years ago

Define alkylenes and alkanes

Chemistry

1 answer:

lawyer [7]3 years ago

8 0

Answer:

Alkylenes: any of the series of unsaturated hydrocarbons containing a triple bond, including acetylene.

alkanes: Alkanes are organic compounds that consist entirely of single-bonded carbon and hydrogen atoms and lack any other functional groups. Alkanes have the general formula CnH2n+2 and can be subdivided into the following three groups: the linear straight-chain alkanes, branched alkanes, and cycloalkanes.

Explanation:

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hich of these statements is supported by the results of Thomson’s experiment? Check all of the boxes that apply.

snow_tiger [21]

Cathode rays are made up of negatively charged particles.

Atoms contain negatively charged particles.

Explanation:

The experiment carried out by J.J Thomson provided evidence to support that fact that atoms contains negatively charged particles and that cathode rays are negatively charged.

J.J Thomson performed experiments using a gas discharge tube.

Through his experiment, he discovered cathode rays.
From his observation, he noticed that they were attracted to the another so they must be negatively charged.
He called the rays cathode rays.
Today, they are known as electrons.
Thomson's experiment discarded the widely held believed that atoms are indivisible.

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3 years ago

Read 2 more answers

What is the mass of a baby in grams if the babies weight in 6 pound. 6 oz

MatroZZZ [7]

2721.55422g

Explanation:

First, step is to find out how much is 1pound in grams.

So,

1 POUND x (1 KG/2.204 POUND) x (1000G/1 KG) which is equal to 453.59g

Here, we got that 1 pound is equal to 453.59g.

In the question, it is given that the weight of the baby is 6 pound.

To convert 6 pounds into grams, we need to multiply 6 pounds with 453.59 g,

6pounds x 453.59g = 2721.55422 g

Hence, the weight of the 6-pound baby in grams will be 2721.55422 grams.

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3 years ago

Give the nuclear symbol for the isotope of gallium, ga, that contains 40 neutrons per atom. Replace the question marks with the

Cerrena [4.2K]

The nuclear symbol of an element have three parts namely:

the symbol of an element
mass number of the element
atomic number of the element

The general representation is as:

$_{Z}^{A}X$

where X is the chemical symbol of the element, A is mass number of the element that is total number of neutrons and protons in the nucleus of an atom, and Z is atomic number of the element that is number of protons in the atom.

Element = Gallium, $Ga$ (given)

Number of neutrons = 40 (given)

Let the nuclear symbol be $_{?}^{?}Ga$ . So, we need to determine the values of "?" in the symbol.

Atomic number of Gallium, $Ga$ = 31

Since, atomic number = Number of protons.

So, number of protons of Gallium, $Ga$ = 31

Mass number = number of protons + number of neutrons

Substituting the values:

Mass number = $31+40 = 71$

So, the nuclear symbol is $_{31}^{71}Ga$ .

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4 years ago

The following image is of a diatom. It lives in water and gets food from photosynthesis. It is encased in a hard shell made of s

Serga [27]

the correct answer is A

A diatom is a(n) Singled-celled organism because it has only one cell.

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3 years ago

Describe the motion of a ball being thrown straight up in the air in terms of kinetic and potential energy. as the ball rises up

denis23 [38]

In your hand, the ball has higher potential energy than kinetic because it is still off of the ground but it isn't moving so there is no kinetic. As the ball rises, its potential and kinetic energy increases. At its peak, it has very high potential energy and very low kinetic energy. As it falls, the potential energy decreases but kinetic does not.

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3 years ago

Define alkylenes and alkanes​

Define alkylenes and alkanes