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antiseptic1488 [7]
4 years ago
9

A sample liquid is cooled to 150 degree Celsius to 30 degree Celsius, causing the liquid to change into a solid. which of the fo

llowing occurred?
Chemistry
1 answer:
Tom [10]4 years ago
6 0

phase change

happened


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Water molecules have a polarity, which allows them to be electrically attracted to other water molecules and other polar molecul
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<h3>Answer:</h3>

            Water molecules have a polarity, which allows them to be electrically attracted to other water molecules and other polar molecules by weak chemical bonds known as <u>Hydrogen Bond</u>.

<h3>Explanation:</h3>

                     Hydrogen Bond Interactions are those interactions which are formed between a <em>partial +ive</em> hydrogen atom bonded directly to most electronegative atoms (i.e. Fluorine, Oxygen and Nitrogen) of one molecule interacts with the <em>partial -ive</em> most electronegative atom of another molecule. These interactions are considered the strongest intermolecular interactions and are responsible for many stronger physical properties of water like, boiling point, viscosity, solubility e.t.c.

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4 years ago
Help will give brainliest!
ASHA 777 [7]

Answer:

large crystals

coarse texture

evidence of slow cooling

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3 years ago
An organic reaction that increases the degreeof unsaturation is called what​
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In the analysis of the molecular formula of organic molecules, the degree of unsaturation (also known as the index of hydrogen deficiency (IHD), double bond equivalents, or unsaturation index) is a calculation that determines the total number of rings and π bonds
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3 years ago
Hbr(aq)+h2o(l)→h3o+(aq)+br−(aq) express your answers as a chemical expressions. enter your answers in order given in the questio
tamaranim1 [39]

This is an incomplete question, here is a complete question.

For each reaction, identify the Bronsted-Lowry acid, the Bronsted-Lowry base, the conjugate acid, and the conjugate base.

HBr(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+Br^-(aq)

Express your answers as a chemical expressions. Enter your answers in order given in the question separated by commas.

Answer : The given equilibrium reaction will be,

HBr(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+Br^-(aq)

Acid            Base      Conjugate    Conjugate

                                       acid             base

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor.

The given equilibrium reaction will be,

HBr(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+Br^-(aq)

Acid            Base      Conjugate    Conjugate

                                       acid             base

In this reaction, HBr is an acid that donate a proton or hydrogen to H_2O base and it forms Br^- and H_3O^+ are conjugate base and acid respectively.

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Listed in the Item Bank are some key terms and expressions associated with the categories seen in the Venn Diagram. To find out
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In the good experimental practice goes: Measuring in standard metric units, Doing repetitive trials of the same experiment, changing the angle of a ramp in an experiment by constant intervals

Explanation: hopefully this helps i got them right so it guaaranteed you will get this right aswell.

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4 years ago
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