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Law Incorporation [45]
3 years ago
11

the _________ contains the majority of the mass of the atom but is much ________ than the atom. A) nucleus, smaller B) neutrons,

larger C) electron cloud, smaller D) pions and quarks, larger
Chemistry
2 answers:
sergeinik [125]3 years ago
6 0
A) nucles
Then B) smaller
mixas84 [53]3 years ago
3 0

Answer:

A) nucleus, smaller

Explanation:

The structure of an atom can be explained based on Rutherford's model according to which, most of the mass of an atom is concentrated in its positively charged core called the 'nucleus' whereas the negatively charged electrons move around it in fixed paths called orbits. The radius of the nucleus however is much smaller than that on the atom.

An element is usually represented in terms of its atomic mass (A) and atomic number(Z).

Atomic mass = protons + neutrons

Atomic number = number of protons

Therefore, the __nucleus_______ contains the majority of the mass of the atom but is much _smaller_______ than the atom.

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Which type of chemical reaction occurs in Ca + Cl2 mc009-1.jpg CaCl2?
gregori [183]

Answer : The correct option is, (a) Synthesis

Explanation :

Synthesis reaction : A chemical reaction where multiple substances or reactants combine to form a single product.

It is represented as,

X+Y\rightarrow XY

Combustion reaction : A chemical reaction in which a hydrocarbon react with the oxygen to give product as carbon dioxide and water.

It is represented as,

CH_4+2O_2\rightarrow CO_2+2H_2O

Single replacement reaction : A chemical reaction in which the more reactive element replace the less reactive element.

It is represented as,

A+BC\rightarrow AC+B

In this reaction, A is more reactive element and B is less reactive element.

Double replacement reaction : It is a type of chemical reaction where a positive cation and a negative anion of two reactants exchange places to form two new products.

It is represented as,

XY+AB\rightarrow XB+AY

(X and A are the cations, Y and B are the anions)

The given reaction is, Ca+Cl_2\rightarrow CaCl_2

In this reaction, calcium combine with the chloride to form calcium chloride as a product.

Hence, the given type of reaction is a synthesis reaction.

5 0
3 years ago
Read 2 more answers
PLEASE HELP!!! what occurs along a convergent plate boundary
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your answer is c. your welcome

brainliest?

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