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STatiana [176]
3 years ago
9

An alpha particle is equivalent to a _____ nucleus.

Chemistry
2 answers:
Allushta [10]3 years ago
8 0
An alp-ha particle is equivalent to the nucleus of a helium atom. Helium Atom = Answer.
Andreyy893 years ago
7 0

Answer:

helium

Explanation:

An alpha particle is helium with +2 charge. Helium atoms have two protons and two neutrons in its nucleus, and two electrons orbiting the nucleus. An alpha particle just resembles the nucleus of a helium atom. An alpha particle is released by a radioactive substance that has an unstable nucleus.

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Plz give me short note on isotopes in agriculture industries and medicine
Mumz [18]

Uses of isotopes:

In agriculture,

C-14 is used to trace the path of photosynthesis.

In medicine,

Iodine -131 is used in the treatment of

goiter

8 0
3 years ago
Draw the structure of the product for the reaction of propylmagnesium bromide with cyclohexanone. Assume that the reactions are
Nadya [2.5K]

Answer:

See explanation below

Explanation:

This reaction is known as the Grignard reaction. If's often used to add an alkyl to a molecule, in this case, a ketone. This also helps to reduce the carbonile to an alcohol.

The mechanism is taking place in 3 steps.

The first step involves the attack of the pair of electrons of the oxygen from the cyclohexanone to the MgBr, and the other pair takes the propyl.

The second step involves the breaking of this bond to have the OMgBr and the propyl attached to the carbon of the chain.

The last steps involves an hydration of the molecule, to turn the OMgBr into OH, and that would be the final product.

In this case, the final product will be 1-propyl-cyclohexanol.

The picture below, shows the mechanism and the drawing of the final product.

5 0
3 years ago
A substance that conducts electricity, is malleable, ductile, and has luster would be classified as a
olya-2409 [2.1K]
The answer is c , metal
5 0
3 years ago
Read 2 more answers
Iron metal has a specific heat of 0.449J/g°C. How much heat is transferred to a 5.00 a piece of iron, initially at 20.0°C, when
ElenaW [278]

Answer:

Q = 44.9 j

Explanation:

Mass of iron = 5.0 g

Change in temperature = 20 °C

Specific heat of iron = 0.449 j/g.°C

Heat transferred = ?

Formula:

<em>Q = m.c. ΔT </em>

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Solution:

<em>Q = m.c. ΔT </em>

Q = 5 g × 0.449 j/g.°C ×  20 °C

Q = 44.9 j

6 0
3 years ago
The substance on which the enzyme acts is called the _____ chemical.
Serga [27]

Answer:

the answer is A

Explanation:

it is substrates because ,Enzymes are specialized proteins that catalyze or speed up chemical reactions within cells. The substance upon which an enzyme acts is called a substrate. Substrates are small molecules.

8 0
3 years ago
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