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Bond [772]
3 years ago
8

Describe the nuclear model of the atom

Chemistry
1 answer:
gulaghasi [49]3 years ago
7 0
An atom consist of mainly two parts, namely nucleus and electrons. In the nucleus, there are groups of protons and neutron DENSELY packed, each element has its own atomic number(number of protons) but can have different no. of neutron (isotop). within the proton and neutron, there are subatomic particles called quarks. Talking about the electrons, they move very quickly arround the nucleus and there are different energy level for electron to switch between. In chemical reaction, we are only concerning the no. of valence electrons.
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Veronika [31]

Answer:

A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.

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3 years ago
What is the the correct equation for water gas​
nikdorinn [45]

Answer:

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6 0
3 years ago
4. Identify each substance in the following word equation as a reactant or a product
dolphi86 [110]

Explanation:

4.                 limestone heat lime + carbon dioxide

The reactants in this expression above is limestone

The products of the reaction is carbon dioxide and lime

Reactant is the species that gives the product and it is usually found on the left hand side of the expression.

The product is the substance on the right hand side of the expression that forms through the experiment.

Heat is used to facilitate the reaction.

5. An exothermic reaction is a reaction in which heat is given off.

An endothermic reaction is a reaction in which heat is absorbed in the process.

An exothermic reaction is always warmer after the reaction whereas an endothermic reaction is colder at the end of the reaction.

6.  Sodium salicylate is made from carbon dioxide and sodium phenoxide.

The reactants are:

                  Carbon dioxide and sodium phenoxide

The product is:

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8 0
3 years ago
Molecules are the smallest units of matter with the characteristic properties of a substance.
Vilka [71]
False, Atoms are the smallest units of matter that display both the chemical and physical properties of it, based on the structure of the atom.
3 0
3 years ago
How many centigrams are in 0.13 oz
Paha777 [63]

Answer:

I think the answer is 368.544 centigrams

Explanation:

I hope I helped

5 0
2 years ago
Read 2 more answers
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