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yaroslaw [1]
3 years ago
6

What is a good sentence for (pure) substance

Chemistry
1 answer:
kenny6666 [7]3 years ago
5 0
Atoms, together with the idea that all the molecules in a pure substance<span> are alike.</span>
You might be interested in
What is waters characteristic shape due to?
den301095 [7]
Water takes shape of the container that it is currently in. ( like a cylinder cup, or a cube shape)
7 0
3 years ago
Read 2 more answers
Someone help me here​
alexira [117]

Atom : B

Cation : C

Anion : A

<h3>Further explanation</h3>

Given

Pictures for atom, anion, and cation

Required

Classification

Solution

Represent atom : Picture B

Number of protons = number of electrons = 6 = neutral atom

Represent cation : Picture C

Number of protons > number of electrons = 6>5 : charge +1(positive charge)

Represent anionn : Picture A

Number of protons < number of electrons = 5<6 : charge -19negative charge)

4 0
3 years ago
Consider a simple reaction in which a reactant AA forms products: A→productsA→products What is the rate law if the reaction is z
levacccp [35]

Answer :

The rate law expression for zero order reaction will be:

Rate=k[A]^0

The rate law expression for first order reaction will be:

Rate=k[A]^1

The rate law expression for second order reaction will be:

Rate=k[A]^2

Zero order reaction : There is no affect on the rate law.

First order reaction : The rate law becomes doubled.

Second order reaction : The rate law becomes quadrupled.

Explanation :

Rate law : It is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.

The given reaction is:

A\rightarrow Products

The rate law expression for zero order reaction will be:

Rate=k[A]^0

The rate law expression for first order reaction will be:

Rate=k[A]^1

The rate law expression for second order reaction will be:

Rate=k[A]^2

Now we have to determine that if doubling of the concentration of A then the rate of reaction will be:

As we know that the zero order reaction does not depend on the concentration of reactant. So, there is no affect on the rate law.

As we know that the first order reaction depend on the concentration of reactant. So, the rate law becomes doubled.

As we know that the second order reaction depend on the concentration of reactant. So, the rate law becomes quadrupled.

5 0
4 years ago
What is the smallest unit of matter that can retain the chemical properties of an element?
Sindrei [870]

I think your answer would be an Atom because it is referred to as the smallest unit of matter that retains the chemical properties of an element.

I Hope my answer help you :)

8 0
3 years ago
Which one of the following groups of chemical compounds is composed entirely of organic compounds?
guajiro [1.7K]

Answer:

D

Explanation:

Organic compounds are chemical compounds which usually contains one or more atoms of carbon, hydrogen, oxygen and sometimes nitrogen or sulphur. Carbon and hydrogen are the main element that is contained in most organic compounds.

Option A is wrong because calcium phosphate is not an organic compound, although all the other compounds in the option are organic compounds.

Option B is wrong because calcium chloride is not an organic compound

Option C is wrong also as calcium sulphate is not an organic compound

Option D is correct as all are organic compounds

7 0
3 years ago
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