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lesya692 [45]
2 years ago
13

How are pure crystalline substances characterized?

Chemistry
1 answer:
hoa [83]2 years ago
4 0
A pure crystalline substance is a substance with an almost perfect regular and periodic pattern in a solid state. This makes this type of substance a hard one compared to an amorphous substance which is soft because of the irregular pattern within.
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According to the principle of original horizontality what most likely happened to the rock layers in the background ?
Lapatulllka [165]

The principle of original horizontality states that all rock layers were initially deposited horizontally.  The answer must be They were deposited horizontally and then shifted by a geologic event because they other choices all indicate that the the rocks were initially deposited in a way that was not horizontal.


Hope this helps!!

5 0
3 years ago
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When the reaction A → B + C is studied, a plot 1/[A]t vs. time gives a straight line with a positive slope. What is the order of
zloy xaker [14]

Answer:

Second order

Explanation:

Given that:

When the reaction A → B + C is studied, a plot 1/[A]t vs. time gives a straight line with a positive slope.

From the integration method for the second order of reaction.

Suppose that:

rate = k₂[A]²

∴

\dfrac{1}{A}=\dfrac{1}{A_0}+k_2t

Therefore, a plot of the linear function \dfrac{1}{A} versus t will be linear with a positive slope k₂ and the intercept on the concentration axis will be \dfrac{1}{A_o}

The linear plot for a second order reaction can be seen in theimage attached below.

7 0
3 years ago
What is chlorine's atomic number and mass
makkiz [27]

\red{⭐hello my \: friend!}

chlorine's atomic number and mass :

35,453 u

\blue{⭐have  good  studies!}

☝️follow the rules of brainly!

8 0
3 years ago
The Law of _____states that substances combine in predictable proportions and that excess reactants remain unchanged.
RideAnS [48]

Answer: definite proportions.


Explanation:


1) The definite proportions law states that compounds will always have the same kind of atoms (elements) in the same mass proportion (ratios).


2) For example, a molecule of water will alwys have the same mass ratio of hydrogen atoms to oxygen atoms. That is what permits to obtain the chemical formula of the water molecule as H₂O.


The mass of the two hydrogen atoms will be in a fixed ratio respect to the mass of the oxygen atoms.


Then, if you have one reactant in less proportion than the other, respect to the ratio stated by the chemical formula of water, the former will react completely (it is the limiting reactant) with the corresponding (proportional) mass of the later. Then there will be an excess of the later reactant which will not react (will remain unchanged).


The reactants can only react in the proportion defined by the chemical formulas of the final products.

4 0
3 years ago
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Is rock solution because it is made up of minerals, water, stone, and dirt?
julsineya [31]
Rocks are made up deposited minerals that form and condense into rocks
7 0
3 years ago
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