webnovel
The interaction between substances

The interaction between substances

2026-07-02 20:10
1 answer

1. **酸的化学性质相关反应** - **酸与金属反应**:酸 + 金属→盐 + 氢气,例如单质铁置换出盐酸里面的氢气:\(Fe + 2HCl=FeCl_{2}+H_{2}\uparrow\)。 - **酸与金属氧化物反应**:酸 + 金属氧化物→盐 + 水,像氧化铁和稀盐酸反应:\(Fe_{2}O_{3}+6HCl = 2FeCl_{3}+3H_{2}O\);氧化铜和稀盐酸反应:\(CuO + 2HCl=CuCl_{2}+H_{2}O\)等。 - **酸与碱反应(中和反应)**:酸 + 碱→盐 + 水,例如盐酸和烧碱起反应:\(HCl+NaOH = NaCl + H_{2}O\);硫酸和烧碱反应:\(H_{2}SO_{4}+2NaOH = Na_{2}SO_{4}+2H_{2}O\)等。 - **酸与盐反应**:酸 + 盐→另一种酸 + 另一种盐,如大理石与稀盐酸反应:\(CaCO_{3}+2HCl = CaCl_{2}+H_{2}O+CO_{2}\uparrow\);碳酸钠与稀盐酸反应:\(Na_{2}CO_{3}+2HCl = 2NaCl + H_{2}O+CO_{2}\uparrow\)。 2. **碱的化学性质相关反应** - **碱与非金属氧化物反应**:碱 + 非金属氧化物→盐 + 水,例如苛性钠在空气中变质:\(2NaOH+CO_{2}=Na_{2}CO_{3}+H_{2}O\);消石灰放在空气中变质:\(Ca(OH)_{2}+CO_{2}=CaCO_{3}\downarrow + H_{2}O\)等。 - **碱与酸反应(中和反应)**:如上述酸与碱反应中的例子。 - **碱与盐反应**:碱 + 盐→另一种碱 + 另一种盐,例如氢氧化钙与碳酸钠:\(Ca(OH)_{2}+Na_{2}CO_{3}=CaCO_{3}\downarrow + 2NaOH\)。 3. **盐的化学性质相关反应** - **盐(溶液)与金属单质反应**:盐(溶液)+ 金属单质→另一种金属 + 另一种盐,例如铁和硫酸铜溶液反应:\(Fe + CuSO_{4}=FeSO_{4}+Cu\)。 - **盐与酸反应**:如碳酸钠与稀盐酸反应:\(Na_{2}CO_{3}+2HCl = 2NaCl + H_{2}O+CO_{2}\uparrow\)。 - **盐与碱反应**:如氢氧化钙与碳酸钠:\(Ca(OH)_{2}+Na_{2}CO_{3}=CaCO_{3}\downarrow + 2NaOH\)。 - **盐与盐反应**:盐 + 盐→两种新盐,例如氯化钠溶液和硝酸银溶液反应会生成氯化银沉淀和硝酸钠。 4. **化合反应相关反应**:由两种或两种以上的物质生成另一种物质的反应叫化合反应,例如铜和氧气在点燃条件下反应生成氧化铜:\(2Cu+O_{2}\stackrel{点燃}{=\!=\!=}2CuO\);碳和氧气在点燃条件下反应生成二氧化碳:\(C + O_{2}\stackrel{点燃}{=\!=\!=}CO_{2}\)等。化合反应与氧化反应没有必然联系,有的反应既是化合反应又是氧化反应,如上述金属和氧气的反应;有的化合反应不属于氧化反应,如二氧化碳与水反应生成碳酸:\(CO_{2}+H_{2}O = H_{2}CO_{3}\);有的氧化反应不属于化合反应,如甲烷燃烧生成二氧化碳和水。 5. **分解反应**:是由一种物质生成两种或两种以上其他物质的反应,例如加热高锰酸钾制取氧气:\(2KMnO_{4}\stackrel{\triangle}{=\!=\!=}K_{2}MnO_{4}+MnO_{2}+O_{2}\uparrow\)(虽然参考资料未明确提及此反应,但属于初三化学常见分解反应)。 6. **氧化还原反应**:物质与氧发生的反应属于氧化反应,含氧化合物里的氧被夺去的反应属于还原反应,在初三化学中,例如氢气还原氧化铜:\(H_{2}+CuO\stackrel{\triangle}{=\!=\!=}Cu + H_{2}O\),氢气发生氧化反应,氧化铜发生还原反应。 点击前往免费阅读更多精彩小说

Trapped Between Two Alphas

Trapped Between Two Alphas

"What's that?" I whispered to myself as I felt something moved very fast behind me. It was very dark at night and a dim-lighted lamp was the only source of light I had to see my way home! "Oh my God!! What could that be?" I whispered to myself again as it moved again, this time, I felt it getting closer to me. Suddenly, I heard a soft whisper close to my left ear "she's back and will spare no one". I became more terrified and decided to run. As I was running, I felt that something was running after me, something I couldn't see. Suddenly, my foot hit a stone on the ground and I fell down with a loud thud, shattering the only source of light I had to pieces! And as I was trying slowly to get back to my feet, I was startled by what I perceived in my nostrils. It was as if what was chasing me was right before my face but yet, I couldn't see it, I could only perceive the smell of warm human blood! ****** On her 18th birthday, Katerina Bathas expected a miracle. Instead, she got a death sentence. Her fated mate, the cruel and powerful Alpha Kol Night, rejected her in front of the entire pack, calling her "unworthy" and "disgusting." Broken and maltreated by Ace, her own brother, on the basis that she was believed to have killed their parents, Katerina flees into the wilderness, choosing the life of a Rogue over a lifetime of shame. But the girl who left the Fallen Moon Pack isn't the woman who returns. Rescued by the mysterious Untamed Pack, Katerina undergoes a lethal transformation. Now, Kol is back, haunted by the bond he tried to break and desperate to reclaim what he threw away. Caught in a deadly tug-of-war between two Alphas, Katerina must decide: Will she return to the mate who shattered her, or surrender to the Alpha who saved her—even if his love is built on a lie? And oh, who is this third Alpha claiming to be her mate as well?
Fantasy
761 Chs
Pillow of Hearts: A tale between the warm hug and cold coffee

Pillow of Hearts: A tale between the warm hug and cold coffee

Moon Young Jae’s homophobic family considered him a disgrace and held his freedom in their clutch. Even with being obedient, he was not free from their abuse. Young Jae was almost blinded and crippled by his father when he stood up for himself for the first time. Left to bleed and die, luckily, he did have a family who wanted to save him. It was twin cousins, who were disowned long before him, who saved him. Sad and hopeless, Young Jae became curious when he met his cousins’ friend, who understood him better than anyone, even without words. Curiosity got the best of him, and he ended by handing his heart, love and soul over a plater as a price. Slowly, Young Jae fell in love with everything about and around Min Jun and eventually fell for the man. Calculative Wang Min Jun entered Young Jae’s life accidentally. He challenged Young Jae's belief with a warm smile and flipped Young Jae’s world upside down. Min Jun read Young Jae like an open book. He planned to get over the little crush he had on his seniors' cousin brother but failed miserably. Min Jun did not like the often-visited ‘frown’ between those beautiful eyebrows and even the always singing of ‘sigh’ through those sinful lips. Min Jun made it his mission to change it only to fall for everything about Young Jae. Wang Min Jun carried his share of baggage, but he was well-prepared to meet the demons from the past head-on. But Young Jae became a mess whenever his past demons decided to pay a visit. He realised he did not have to face anything alone as he has a wonderful boyfriend who cherishes everything about him. Both faced their past demons and trauma together. When a person betrayed by a family fell in love with a person who holds his family above everything, sparks flew, and hearts soared in happiness. Will their story has a harmonious bell, or would it be a sea of misery? Teaser: Files were shattered all over Min Jun’s bed, and his laptop was placed on the bedside table. It chimed once in a while, indicating a new email for him to check. The work was piling more and more as he was diligently finishing it. Young Jae walked into his boyfriend’s bedroom to witness his handsome lover working hard. "Jun Jun! Are you busy?" Even though Young Jae did not want to disturb his lover, he knew he needed some help to impress his boss. "Never for you, love. Tell you what you need?" Min Jun did not lift his head from the file he was going through, but the warmth in his voice reached Young Jae's heart without fail. "Do you have a minute to help me in reviewing my monthly internship report? I have to present to our boss tomorrow morning." Young Jae pouted as he asked. Min Ju looked at his adorable tokki and smiled mischievously. "You are brave, asking your superior to help you sneakily. I can't do it for free. I need a huge bribe to help you. What are you planning to offer?" "Be serious. You have too much work to do." Young Jae chided his shameless boyfriend, who never failed to seize every opportunity to make him moan and groan as he takes him to the pleasurable heaven. "Exactly. I have too much work to do. If I am taking my time to help you, I need something in return. Something so tempting that I don’t mind cramping lots of things later." Min Jun smiled like a devil he was as he grabbed Young Jae towards him. The little rabbit who fell into the cunning wolf's lap did not even get a chance to protest as he was devoured breathlessly. Young Jae forgot why he entered the wolf's lair altogether. Min Jun pushed the files away to make space for his little rabbit to lay down comfortably. Young Jae’s report was long forgotten as a treacherous hand started to caress him again under the shirt as a sinful sound filled the room. P.s: The cover belongs to the rightful owner, and it will be removed if the original owner asks to do so. WARNING: THIS IS A GAY LOVE STORY WITH BDSM. IF YOU ARE NOT COMFORTABLE WITH IT, SPARE THE NOVEL. Discord: https://discord.gg/jSQxjwPV5s
LGBT+
583 Chs
Alpha's Bite Between My Legs

Alpha's Bite Between My Legs

[ WARNING: EXTREMELY MATURE CONTENT ] "If I see you again, I'll ravish your body while you bleed, Prince!" Rosina, a woman haunted by a dark past, developed a dangerous obsession that led to a trail of blood and corpses. A predator that liked to enjoy her prey before taking their lives. She has always despised the idea of having a mate until she was compelled to attend the annual mating season. Harboring a deep desire for freedom, she detested any association with royalty. During the mating event, she encountered a mysterious man wearing a blood-red mask. Draco was portrayed as a carefree Third Prince who sought only amusement and avoided the responsibilities that came with the crown. However, his encounter with Rosina ignited a change within him. He realizes that in order to win her hand in marriage, he must become a King. That transformation set Draco on a path of self-discovery and growth as he strived to prove himself worthy of Rosina's love. Would their encounter change their fate or push them to ruin? _____ Volume 2: "My duty is to find a nobleman to lead my Pack, but you conquered my heart, commoner." Felissa was responsible for searching for a mate worthy of status and fulfilling her duty as the only daughter of an Alpha, which led her to revolve her life to become a perfect future Luna of the Midnight pack. She was known as gentle as a fragile flower, or so they thought. Behind her cheerful smile hid the darkness that wanted to ascend and take over her body. A personality born due to the use of magic. As Felissa hunted for a noble mate to satisfy her parents. She met a commoner with two identities. Vicenzo was a man living different lives to keep his mother safe from the abusive Pack. He was willing to sacrifice the mate bond to destroy the New Monarch as his task, but his heart slowly broke apart and yearned for his mate's touch. Would they prioritize their duty or give in to what their body desired?" _____ Volume 3: "I will accept you despite everything you have done, my dearest." Gastone lived in the human world as his punishment but was called back to the Werewolf realm by Rosina to find his mate. He didn't want one because of his living situation and pride as a fallen Prince. Along the way, he saved a troubled woman named Lucia and brought her to the realm after begging him to save her. That caused problems since Werewolves were myths to humans. With the help of Draco, Gastone and Lucia settled in a secluded place temporarily for security. Lucia had escaped from the Orphanage that worked in the black market. She aimed to stop its business to save many girl's lives but failed after years of planning. After meeting Gastone, she intended to use him to her advantage since she needed milk to survive the curse. Would their love blossom after finding great differences between their races? __ [ WPC #301 - Gold Place Winner!!! ] . . Official Commissioned Cover. __ Contact me: IG: mona_milku Discord: https://discord.gg/XqbVZffGbv __
Fantasy
550 Chs

The relationship between genes and hereditary substances

Genes were the units of inheritance that stored hereditary information in the genetic material. They were the code of life. Genetic material was the main material basis for storing, transmitting genetic information, and replicating cells. In 1953, it was discovered that the chemical substance, DNA, in the 46 embryos of a human fertilized egg was a gene. Genes were the main substances of genetic variation, which dominated the basic structure and performance of life. They had the dual attributes of materiality and information. They stored all the information of the process of life conception, growth, and death. Through replication, replication, and expression, they completed important physiological processes such as life reproduction, cell division, and protein synthesis. It could be said that genes were an important component of genetic material. Genetic material included genes, and both were related to the inheritance of living things.

1 answer
2026-02-15 06:25

Do invisible substances really not exist?

In the discussion of science and philosophy, invisible substances might not necessarily not exist. From a scientific point of view, dark matter was something that could not be seen, touched, or even observed with astronomical telescopes, but it actually affected the operation of the universe. Antimatter was also a scientific phenomenon, although it was more abstract. Moreover, the human eye can only see a small part of the electromagnetic wave range, which is the visible light between 380 - 750THz. The electromagnetic bands emitted by many celestial bodies are weak or not within the range of the human eye. We can't see them, but we can't deny their existence. In the field of philosophy, the ancient Greek philosopher Plato's " theory of ideas " proposed that the real world we perceive is an imitation and projection of the world of ideas. This challenged our intuitive understanding of material existence to a certain extent. In modern physics, especially quantum mechanics, the behavior of particles was uncertain and fluctuating. For example, electrons existed in the form of probability waves when they were not observed, which also confused us about the certainty of the existence of matter. Einstein's theory of relativity pointed out that matter and energy could be transformed into each other, which also blurred the clear boundaries of the existence of matter. Therefore, whether it was from the perspective of scientific discovery or philosophical thinking, invisible substances could not simply be judged as non-existent. This point of view could also be applied to the thinking of novel reading. For example, some science fiction novels might construct a story world view based on such scientific and philosophical concepts, exploring the secrets hidden behind invisible substances or phenomena. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-01-09 09:38

Are there any dissolvable substances in the reaction products?

Since you didn't provide the specific reaction content, it is impossible to determine whether the reaction product has any dissolvable substances. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-07-01 18:01

What substances do they inject in Pulp Fiction?

I think it might be some kind of drugs, but I'm not sure exactly what. Maybe heroin or something similar.

3 answers
2024-10-15 06:04

Is the 'novel psychoactive substances book' useful for researchers?

Yes, it is. It can provide researchers with a wealth of data on novel psychoactive substances, such as their properties and effects, which is essential for conducting further research.

3 answers
2024-11-28 09:09

What does novel psychoactive substances mean?

Novel psychoactive substances refer to drugs or substances that are not controlled under international drug conventions but can have similar effects on the body and mind as traditional drugs.

2 answers
2024-10-06 23:17

What are the common substances used in breast injections?

Silicone is one of the more common substances, although its use in non - regulated settings can be very dangerous. Another is hyaluronic acid, which is generally considered safer but still requires proper medical administration. Some less - recommended substances have also been used in the past, but they often lead to serious complications.

2 answers
2024-11-20 16:04

What are the harmful substances in food for pregnant women?

Some common harmful substances for pregnant women in food include high levels of mercury in certain fish, excessive caffeine in beverages, and additives like artificial sweeteners.

3 answers
2025-12-08 01:54

Why do substances react faster in solution?

From a microscopic point of view, when a solute was dissolved, the molecules or ions of the solute would spread into the water and be evenly dispersed among the water molecules. This allowed the molecules of the two substances to come into contact with each other more fully during the chemical reaction, so the reaction was faster. From the perspective of contact area, the solution was a uniform and stable mixture. In the solution, the contact area of the two substances was large, and the chemical reaction rate was fast. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-07-01 20:39

Reaction phenomenon of the reaction between the two substances

The reaction of the two reagents would produce a light green deposit (nickelous carbonite) and then a solution of the two reagents. However, if the test tube was shaken, the deposit would dissolve, regardless of the amount of the reagent. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-07-02 12:50
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z