Study the models shown in the picture. The models were all made using the same model kit. The methane model and the oxygen model are both complete and correct. In the hydrogen peroxide model, one atom is incorrectly represented with a blue sphere.
The white spheres represent______ atoms. The grey spheres represents_____ atoms.
The white spheres represent hydrogen atoms. The grey spheres represent oxygen atoms.
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Study the models shown in the picture. The models were all made using the same model kit. The methane model and the oxygen model are both complete and correct. In the hydrogen peroxide model, one atom is incorrectly represented with a blue sphere.
The white spheres represent______ atoms. The grey spheres represents_____ atoms. What do the red spheres represent
Based on the information provided, the red spheres most likely represent oxygen atoms in the hydrogen peroxide model.
So what r all 3 answers?
Apologies for the confusion. Based on the information provided, the three answers are:
1. The white spheres represent hydrogen atoms.
2. The grey spheres represent oxygen atoms.
3. The red spheres represent oxygen atoms (in the hydrogen peroxide model).
Okay now for the next question what’s color should the blue atom actually be in the hydrogen peroxide model
The blue atom in the hydrogen peroxide model should be represented by a white sphere instead.
What’s the chemical symbol for lithium ? “Li (big L big I) Li (big L little I) L or lithium
The chemical symbol for lithium is "Li" (big L, little i).
How many protons does one atom of sulfur have?
What is the atomic number of oxygen ?
One atom of sulfur has 16 protons. The atomic number of oxygen is 8.
dalton and macie were conducting an experiment at school during the experience they added a little dry yeast to some hydrogen peroxide the combination began to bubble rapidly and the container felt warm they captured some of the Gas that was formed and they discovered that the gas they captured Gad a new property when they put a lit match into the gas it made the lit match glow much brighter
a. Dalton and macie determine that a (chemical or physical change) must have taken place when this kind of change takes place atoms must (rearrange to form one or more new substances or remain the same in combination)
B. Which of the following pieces of evidence helped Alton and macie answer question a?
a new gas was formed (useful or not useful)
A solid dissolved in a liquid (useful or not useful)
they saw a new color (useful or not useful)
one of the substances formed had a new property (useful or not useful)
a. Dalton and Macie determined that a chemical change must have taken place. When this kind of change occurs, atoms rearrange to form one or more new substances.
b. The piece of evidence that helped Dalton and Macie answer question a is: One of the substances formed had a new property (useful).
Ther s two answers for B !
Apologies for the confusion. The two pieces of evidence that helped Dalton and Macie answer question a are:
1. One of the substances formed had a new property (useful).
2. A new gas was formed (useful).
methane reacts with oxygen gas to form carbon dioxide and water
A. Methane is flammable but carbon dioxide is not does this makes sense why or why not?
(Yes it makes sense because we expect products and reactants to have different properties, yes it makes sense because a psychical change took place, no it doesn’t make sense because we expect products and reactants to have different properties, no it doesn’t make sense because a psychical change took place)
B. How would you expect the boiling point of mathene to compare with the boiling point of water?
(The poiling points would probably be the same because products and reactants always have the same properties, the boiling point would probably be different because products and reactants usually have different properties, it is impossible to tell because chemical reactions don’t give us any clues about the properties of products compared to reactants)
A. No, it doesn't make sense because we expect products and reactants to have different properties. Methane is flammable, while carbon dioxide is not. This indicates a chemical change took place, resulting in the formation of different substances with different properties.
B. The boiling point of methane would likely be different from the boiling point of water because products and reactants usually have different properties.
There are 4 atoms of hydrogen shown in the reactant side how many total atoms of hydrogen must be on the product side
For the chemical reaction of methane reacting with oxygen to form carbon dioxide and water, there are 4 atoms of hydrogen on the reactant side. On the product side, there must be a total of 6 atoms of hydrogen.
Here’s the start of the question before the answers so u can be sure !
Connie and desaten jniw that solid potassium reacts very strongly with water producing a chemical called potassium hydroxide along with hydrogen gas they know the chemical equation looks like this (2k + 2H2O (small 2) > 2kOH + some amount of H2 (small 2)
Thank you for providing the context. Based on the given chemical equation,
2K + 2H2O -> 2KOH + some amount of H2
There are 2 atoms of hydrogen on the reactant side. Therefore, on the product side, there must be a total of 4 atoms of hydrogen.
Okay time for the part B of that
What does the law of conversion of matter tell the students?
(Matter is never gained or lost in a chemical or psychical process, matter might be gained in a chemical or physical process, matter is always gained or lost in a chemical or physical process, mattter might be lost in a chemical or psychical process)
The law of conservation of matter tells the students that matter is never gained or lost in a chemical or physical process.
Part C now !
Connie and dewayne combine 78 grams of potassium with 36 grams of heater what would they expect the total most of the products to be? Why?
(The total mass of the products would be 114 grams because mass cannot be gained or lost in the process, the total mass of the products would equal 78 grams because the mass of water doesn’t make a difference, the total mass of the products would be greater than 114 grams vengase water is really heavy, the total mass of the products would be something less than 114 grams because some of the mass burned into nothing)
Connie and Dewayne would expect the total mass of the products to be 114 grams because mass cannot be gained or lost in the process. According to the law of conservation of mass, the total mass of the reactants should be equal to the total mass of the products. Therefore, the sum of the masses of potassium and water (78 grams + 36 grams = 114 grams) would be the expected total mass of the products.
Adi and Emeril were discussing articles they had read online. They summarized the articles and then talked about what the articles meant.
Adi read an article entitled, "The Wonderful World of Synthetic Chemistry." Emeril read an article entitled, "The Dangerous World of Synthetic Chemistry."
Read the portions of the articles (below) that Adi and Emeril had read. Then answer the questions.
The Wonderful World of Synthetic Chemistry
Synthetic chemistry involves producing new substances from existing raw materials. Often, the raw materials come from petroleum products like oil and natural gas, which have to be removed from deep underground. Then those molecules are used as starting materials to form new, useful molecules for things like plastics and medicines. Synthetic chemicals can be applied to clothing and household goods to make them resistant to burning. Synthetic clothing can be produced inexpensively and in a wide variety of styles. Plastic containers are lightweight and easy to transport.
The Dangerous World of Synthetic Chemistry
Synthetic materials are produced when raw materials undergo chemical reactions. Synthetic chemistry involves drilling for oil or liquid petroleum to use as raw materials. This process can lead to environmental pollution and risks to human health. Synthetic plastics are "forever" items, meaning it can take them hundreds or even thousands of years to break down in the environment. Recycling programs are not reliable, and single-use synthetic products are wasteful. Some synthetic chemicals are poisonous and can seep into groundwater.
Question 1
Adi and Emeril decide they want to interview the authors of the articles to see if the authors agreed on any topics.
a. The authors agreed on one point. They disagreed on the rest of the ideas. Click to show which points were believed by each author.
If both authors were likely to believe a statement, click BOTH options. If only one author was likely to believe a statement, just select that one author.
(4 points)
believed by the author of The Wonderful World of Synthetic Chemistry
believed by the author of The Dangerous World of Synthetic Chemistry
Synthetic products are made from natural resources like petroleum (oil).
believed by the author of The Wonderful World of Synthetic Chemistry – Synthetic products are made from natural resources like petroleum (oil).
believed by the author of The Dangerous World of Synthetic Chemistry – Synthetic products are made from natural resources like petroleum (oil).
Synthetic products like plastic seat belt parts can help save people from death or injury.
believed by the author of The Wonderful World of Synthetic Chemistry – Synthetic products like plastic seat belt parts can help save people from death or injury.
believed by the author of The Dangerous World of Synthetic Chemistry – Synthetic products like plastic seat belt parts can help save people from death or injury.
Synthetic products damage the environment because they take a long time to decompose.
believed by the author of The Wonderful World of Synthetic Chemistry – Synthetic products damage the environment because they take a long time to decompose.
believed by the author of The Dangerous World of Synthetic Chemistry – Synthetic products damage the environment because they take a long time to decompose.
Synthetic products can make it easier and cheaper to package and ship other products.
believed by the author of The Wonderful World of Synthetic Chemistry – Synthetic products can make it easier and cheaper to package and ship other products.
believed by the author of The Dangerous World of Synthetic Chemistry – Synthetic products can make it easier and cheaper to package and ship other products.
Question 2
b. What gives you a good clue that chemical reactions are used to convert natural resources into synthetic products?
(1 point)
Responses
The properties of synthetic materials and the natural resources used to make them are different.
The properties of synthetic materials and the natural resources used to make them are different.
Synthetic materials and natural resources don't have any properties.
Synthetic materials and natural resources don't have any properties.
It's impossible to compare and contrast the properties of synthetic and natural materials.
It's impossible to compare and contrast the properties of synthetic and natural materials.
The properties of synthetic materials and the natural resources used to make them are the same.
The properties of synthetic materials and the natural resources used to make them are the same.
Question 3
c. Drag and drop each item into the correct column in order to sort the synthetic materials vs. the natural materials.
Synthetic materials and natural materials
(iPhone screen protector, television screen, coal in the ground, raw milk, plastic, water in a lake, nylon raincoat, strawberries)
Question 1:
a. The authors agreed on one point. They disagreed on the rest of the ideas.
Synthetic products are made from natural resources like petroleum (oil):
- believed by the author of The Wonderful World of Synthetic Chemistry
- believed by the author of The Dangerous World of Synthetic Chemistry
Synthetic products like plastic seat belt parts can help save people from death or injury:
- believed by the author of The Wonderful World of Synthetic Chemistry
- believed by the author of The Dangerous World of Synthetic Chemistry
Synthetic products damage the environment because they take a long time to decompose:
- believed by the author of The Wonderful World of Synthetic Chemistry
- believed by the author of The Dangerous World of Synthetic Chemistry
Synthetic products can make it easier and cheaper to package and ship other products:
- believed by the author of The Wonderful World of Synthetic Chemistry
- believed by the author of The Dangerous World of Synthetic Chemistry
Question 2:
b. The properties of synthetic materials and the natural resources used to make them are different.
Question 3:
c. Sorting synthetic materials vs. natural materials:
Synthetic materials:
- iPhone screen protector
- Television screen
- Plastic
- Nylon raincoat
Natural materials:
- Coal in the ground
- Raw milk
- Water in a lake
- Strawberries
For question 1 can u do (yes or no) in them (yes for the wonderful world and no for the dangerous world so it’s easier to understand !)
Apologies for the confusion. Here is the revised response for question 1:
a. The authors agreed on one point. They disagreed on the rest of the ideas.
Synthetic products are made from natural resources like petroleum (oil):
- Yes (The Wonderful World of Synthetic Chemistry)
- Yes (The Dangerous World of Synthetic Chemistry)
Synthetic products like plastic seat belt parts can help save people from death or injury:
- Yes (The Wonderful World of Synthetic Chemistry)
- Yes (The Dangerous World of Synthetic Chemistry)
Synthetic products damage the environment because they take a long time to decompose:
- Yes (The Wonderful World of Synthetic Chemistry)
- Yes (The Dangerous World of Synthetic Chemistry)
Synthetic products can make it easier and cheaper to package and ship other products:
- Yes (The Wonderful World of Synthetic Chemistry)
- Yes (The Dangerous World of Synthetic Chemistry)
ONLY SELECT ONE AUTHOR FOR ESCH!!
Apologies for the confusion. Here is the revised response for question 1:
a. The authors agreed on one point. They disagreed on the rest of the ideas.
Synthetic products are made from natural resources like petroleum (oil):
- Yes (The Wonderful World of Synthetic Chemistry)
- No (The Dangerous World of Synthetic Chemistry)
Synthetic products like plastic seat belt parts can help save people from death or injury:
- Yes (The Wonderful World of Synthetic Chemistry)
- No (The Dangerous World of Synthetic Chemistry)
Synthetic products damage the environment because they take a long time to decompose:
- Yes (The Wonderful World of Synthetic Chemistry)
- Yes (The Dangerous World of Synthetic Chemistry)
Synthetic products can make it easier and cheaper to package and ship other products:
- Yes (The Wonderful World of Synthetic Chemistry)
- No (The Dangerous World of Synthetic Chemistry)
Noo nvm u were right before so both authors agree on all 4 of them right?
Apologies for the confusion. Yes, both authors agree on all four statements:
Synthetic products are made from natural resources like petroleum (oil).
Synthetic products like plastic seat belt parts can help save people from death or injury.
Synthetic products damage the environment because they take a long time to decompose.
Synthetic products can make it easier and cheaper to package and ship other products.
Both authors agree on these points.
Watch the video shown above. (If you are having technical difficulty, don't worry. You can still answer the question without being able to see the video.)
In the video, solid iodine and solid aluminum are mixed (with a tiny amount of water), yielding a highly exothermic reaction that gives off a lot of thermal energy (heat) and light. The equation for the reaction is written like this.
starting temperature
ending temperature
20o�C
?
Fill in the blanks to complete the following description.
(3 points)
This reaction gives off thermal energy, so we say it is (endothermic, exothermic, neither, or both) If you could safely put your hand near the container as soon as it was safe to do so after the reaction had finished, you would expect the surroundings to feel (warm/hot, cool/cold, or room temp) you would expect the ending temperature to be (greater than, less than, or the same as) 20 degrees Celsius
Based on the information provided, the missing terms can be filled as follows:
This reaction gives off thermal energy, so we say it is exothermic. If you could safely put your hand near the container as soon as it was safe to do so after the reaction had finished, you would expect the surroundings to feel hot. You would expect the ending temperature to be greater than 20 degrees Celsius.
Thanks hope these answers help everybody !!! If anything is wrong I’ll put the right answers.
You're welcome! If you have any further questions or need clarification, feel free to ask.
3 things are partly correct
Question 2: A. hydrogen, oxygen and carbon! B. Red
Questions 5: A. Yes it does make sense because we expect products and reactants to have different properties. B. (It’s correct just find where I asked question 5 !!)
Question 7: A. First thing both agree, second only wonderful world agrees , third only dangerous world agrees and fourth only wonderful world agrees, B and C are all correct ! Just find where I asked question 7.
That’s all the answers that were wrong basically ❤️❤️