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4 years ago

1. Define Matter .

Chemistry

1 answer:

Fantom [35]4 years ago

6 0

Answer:

1. Anything that has mass and occipies space is called matter.

2. The difference between Living and Non-Living Matter are :

Living Matter :

The earth is home to all kinds of plants and animals. They can grow , move and reproduceon their own .
It is natural only .

Non - Living Matter :

Most of the matter in the inverse is non-living. It means that it does not grow, move or reproduce on its own .
It can be natural and non-made.

3. Atom is the smallest particle from which matter is made up of.

4. The one difference between atoms and Molecules are :

Atoms

Atoms may or may not have independent existence

Molecules :

Molecules have independent existence.

You might be interested in

Element z reacts with bromine to form an ionic compound zbr2

slamgirl [31]

Explanation:

Physical properties of ZBr₂

The compound is an ionic substance. Therefore it will have properties of ionic compounds. Some of these properties are:

it is a hard solid usually with high melting points or a liquid with high boiling points.
Soluble in water and insoluble in non-polar solvents.
It can conduct electricity in aqueous solutions or in molten form.
it will undergo a fast reaction.

Z is a metal

To form ionic compound, a metal will combine with a non-metal. Bromine is a non-metal and it is expected that Z will be a metal. This is because ionic bonds involves transfer of electron from one specie to the other. Metals are usually the donor and non-metals are the receptor. This is how ionic bond forms. The electrostatic attraction resulting from the ions produced the ionic bond.

Formula of the oxide

Z 0

+2 -2

It is obvious that Z has 2 valence electrons. It will lose the two valence electrons to attain stability.

Oxygen requires 2 electrons to resemble Neon. This combination will give a compound ZO.

Learn more:

ionic compounds brainly.com/question/6071838

#learnwithBrainly

5 0

3 years ago

A gas mixture containing He, Ne, and Ar exerts a pressure of 3.00 atm. What is the partial pressure of each gas present in the m

matrenka [14]

<h3>Answer:</h3>

Partial pressure of He(P(He) = 1.5 atm.

Partial pressure of Ne(P(Ne) = 1 atm.

Partial pressure of Ar(P(Ar) = 0.5 atm.

<h3>Explanation:</h3>

According to Dalton law of partial pressure the sum of partial pressures of individual gases in a gaseous mixture is equivalent to the total pressure.

The partial pressure of a gas in a gaseous mixture is given by the product of the mole fraction and the total pressure.

Our gaseous mixture contains He, Ne, and Ar and the total pressure is 3 atm.

Since we are given the ratios of the gases in the mixture, we can calculate the partial pressure of each gas.

P(He) = 3/6 × 3 atm.

= 1.5 atm.

P(Ne) = 2/6 × 3 atm.

= 1 atm

P(Ar) = 1/6 × 3 atm.

= 0.5 atm

Therefore, the partial pressures of gases He, Ne and Ar are 1.5 atm, 1 atm, and 0.5 atm respectively.

8 0

3 years ago

If you were to use Lewis theory to predict the formula for the compound between rubidium and fluorine, it would most likely be:

goldenfox [79]

Answer: The formula of the compound formed between rubidium and fluorine is RbF

Explanation:

Ionic bond is defined as the bond which is formed by complete transfer of electrons from one atom to another atom.

The atom which looses the electron is known as electropositive atom and the atom which gains the electron is known as electronegative atom. This bond is usually formed between a metal and a non-metal.

Rubidium is the 37th element of the periodic table having electronic configuration of $1s^22s^22p^63s^23p^64s^23d^{10}4p^65s^1$

This will loose 1 electron to form $Rb^+$ ion

Fluoride is the 9th element of the periodic table having electronic configuration of $1s^22s^22p^5$

This will gain 1 electron to form $F^-$ ion

To form $RbF$ compound, 1 rubidium ion is needed to neutralize the charge on fluoride ion

The formation of the given compounds is shown in the image below.

4 0

3 years ago

Where do the light-independent reactions take place in c3 photosynthesis?

QveST [7]

Answer:

chloroplast, more precisely in the stroma of the chloroplast

Explanation:

Chloroplasts are a type of chromoplasts that are located in photosynthetic plant cells and green algae.

They can be moved by amoeboid and contractile movements, and placed in the part of the cell that receives the most light. Photosynthetic algae usually have a large chloroplast, but plant cells have a few tens.

The internal medium of the chloroplast is called stroma, and it is composed of a solution of carbohydrates, lipids, protids, nucleic acids, pigments, nucleotides, salts and elements.

Its main function is to capture the light energy and use it in the synthesis of organic matter.

3 0

3 years ago

Which of the following are properties of mechanical waves? (pick more than 1)

Tamiku [17]

Answer:

I'd say ALL OF THE ABOVE.

A Mechanical wave is a disturbance that transfers energy as it moves through a medium without displacement of the medium itself.

It can Either be Transversal or Longitudinal.

It is Transversal when the particles of the medium move perpendicular to the wave motion.

It requires a medium and begin at a source with a disturbance

ALL THE OPTIONS SEEM LEGIT.

7 0

3 years ago