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saul85 [17]
4 years ago
12

When Philip analyzed unknown substance x, he found that it contained only one kind of atom what is substance x

Chemistry
1 answer:
ankoles [38]4 years ago
5 0
Substance X is a (B) Element.
Explanation:

A compound consists of either many identical atoms or more than 1 type of atom. They can be broken down or converted into a simpler one.
An element is a substance which contains only one kind of atom. It cannot be broken down further or converted into simpler substance by any chemical means.

Heterogeneous mixture is a non uniform mixture of different atoms without any chemical bonding in between them.
Homogeneous mixture is a uniform mixture of different atoms without any chemical bonding in between them.
From the definitions it is clear that substance X is (B) Element.
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100 cm = 1m
shutvik [7]

Answer:

This is a conversion factor

3 0
2 years ago
Saponification is a chemical reaction _____. A. due to the presence of a strong organic acid. B. that results in an alcohol and
dezoksy [38]

Answer:

that results in an alcohol and a carboxylic acid.

Explanation:

Saponification is a chemical reaction process of alkaline hydrolysis of esters(R'COOR group) by which soap is obtained.

For Example, when a base such as sodium hydroxide [NaOH]  is used to hydrolyze an ester, the products are a carboxylate salt and an alcohol. Because soaps are prepared by the alkaline hydrolysis of fats and oils.

In a saponification reaction, alkaline hydrolysis of fats and oils with sodium hydroxide  yields propane-1,2,3-triol and the corresponding sodium salts of the component fatty acids.

i.e  Fat or oil + caustic alkali ⇒ Soap + propane-1,2,3-triol

As a specific example, ethyl acetate and NaOH react to form sodium acetate and ethanol:

The reaction goes to completion in the image below:

8 0
3 years ago
How many liters of a 0.5M sodium hydroxide solution would contain 2 mols of solute
Airida [17]
Molarity = mol/L
(0.5M) = (2mol)/L
(2mol)/(0.5M) = L
4 liters
4 0
3 years ago
Read 2 more answers
Rare earth elements plz
Slav-nsk [51]
Rare earth metals are a group of 17 elements - lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, yttrium - that appear in low concentrations in the ground
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3 years ago
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Which of the following reactions is possible according to Dalton's atomic theory? View Available Hint(s) Which of the following
finlep [7]

Answer:

N2+O2→2NO

Explanation:

Dalton’s atomic theory is based on law of constant composition and law of conservation of mass.

One of the postulates of this theory is that rearrangement of atoms occurs during a chemical reaction. In other words, only rearrangement of elements occurs during a chemical reaction and elements remain the same.

So, among the given, the following reaction undergoes rearrangement of elements.

N2+O2→2NO

SO, only the above reaction is possible as per Dalton’s atomic theory.

7 0
4 years ago
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