Asked by ?
What is the atomic number of oxygen?
Answers
Answered by
?
How many protons does one atom of sulfur have?(1 point)
Responses
8
8
16
16
32
32
32.066
Responses
8
8
16
16
32
32
32.066
Answered by
?
What is the chemical symbol for lithium?
(1 point)
Responses
L
L
LI (big L, big I)
LI (big L, big I)
lithium
lithium
Li (big L, little i)
(1 point)
Responses
L
L
LI (big L, big I)
LI (big L, big I)
lithium
lithium
Li (big L, little i)
Answered by
?
Dalton and Macie were conducting an experiment at school. During the experiment, 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 had a new property. When they put a lit match into the gas, it made the lit match glow much brighter!(2 points)
was this a physical Change or chemical change?
was this a physical Change or chemical change?
Answered by
?
Dalton and Macie were conducting an experiment at school. During the experiment, 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 had a new property. When they put a lit match into the gas, it made the lit match glow much brighter!(2 points) Was a new gas formed?
Answered by
?
Dalton and Macie were conducting an experiment at school. During the experiment, 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 had a new property. When they put a lit match into the gas, it made the lit match glow much brighter!(2 points) Did one of the substances formed had a new property?
Answered by
?
Methane is flammable, but carbon dioxide is not. Does this make sense? Why or why not.
(1 point)
Responses
No, it doesn't make sense, because a physical change took place.
No, it doesn't make sense, because a physical change took place.
Yes, it makes sense, because a physical change took place.
Yes, it makes sense, because a physical change took place.
Yes, it makes sense, because we expect products and reactants to have different properties.
Yes, it makes sense, because we expect products and reactants to have different properties.
No, it doesn't make sense, because we expect products and reactants to have different properties.
(1 point)
Responses
No, it doesn't make sense, because a physical change took place.
No, it doesn't make sense, because a physical change took place.
Yes, it makes sense, because a physical change took place.
Yes, it makes sense, because a physical change took place.
Yes, it makes sense, because we expect products and reactants to have different properties.
Yes, it makes sense, because we expect products and reactants to have different properties.
No, it doesn't make sense, because we expect products and reactants to have different properties.
Answered by
?
How would you expect the boiling point of methane to compare with the boiling point of water?(1 point)
Responses
The boiling points would probably be the same, because products and reactants always have the same properties.
The boiling points would probably be the same, because products and reactants always have the same properties.
The boiling points would probably be different, because products and reactants usually have different properties.
The boiling points 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.
Responses
The boiling points would probably be the same, because products and reactants always have the same properties.
The boiling points would probably be the same, because products and reactants always have the same properties.
The boiling points would probably be different, because products and reactants usually have different properties.
The boiling points 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.
Answered by
?
2K + 2H2
O → 2KOH + some amount of H2
a. There are 4 atoms of hydrogen shown on the reactant side. How many total atoms of hydrogen must be on the product side?
O → 2KOH + some amount of H2
a. There are 4 atoms of hydrogen shown on the reactant side. How many total atoms of hydrogen must be on the product side?
Answered by
?
What does the law of conservation of matter (or the law of conservation of mass) tell the students?(1 point)
Responses
Matter might be lost in a chemical or physical process.
Matter might be lost in a chemical or physical process.
Matter is always gained or lost in a chemical or physical process.
Matter is always gained or lost in a chemical or physical process.
Matter is never gained or lost in a chemical or physical process.
Matter is never gained or lost in a chemical or physical process.
Matter might be gained in a chemical or physical process.
Matter might be gained in a chemical or physical process.
Question 3
Responses
Matter might be lost in a chemical or physical process.
Matter might be lost in a chemical or physical process.
Matter is always gained or lost in a chemical or physical process.
Matter is always gained or lost in a chemical or physical process.
Matter is never gained or lost in a chemical or physical process.
Matter is never gained or lost in a chemical or physical process.
Matter might be gained in a chemical or physical process.
Matter might be gained in a chemical or physical process.
Question 3
Answered by
?
Connie and Dewayne combine 78 grams of potassium with 36 grams of water. What would they expect the total mass of the products to be? Why?
You can use the calculator (below the answers) if desired.
(1 point)
Responses
The total mass of the products would be greater than 114 grams, because water is really heavy.
The total mass of the products would be greater than 114 grams, because water is really heavy.
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 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 equal 78 grams, because the mass of water doesn't make a difference.
The total mass of the products would be something less than 114 grams, because some of the mass burned into nothing.
The total mass of the products would be something less than 114 grams, because some of the mass burned into nothing.
You can use the calculator (below the answers) if desired.
(1 point)
Responses
The total mass of the products would be greater than 114 grams, because water is really heavy.
The total mass of the products would be greater than 114 grams, because water is really heavy.
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 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 equal 78 grams, because the mass of water doesn't make a difference.
The total mass of the products would be something less than 114 grams, because some of the mass burned into nothing.
The total mass of the products would be something less than 114 grams, because some of the mass burned into nothing.
Answered by
?
true or false Synthetic products are made from natural resources like petroleum (oil).
Answered by
?
true or false Synthetic products like plastic seat belt parts can help save people from death or injury.
Answered by
?
true or false Synthetic products damage the environment because they take a long time to decompose.
Answered by
?
true or false Synthetic products can make it easier and cheaper to package and ship other products.
Answered by
?
What gives you a good clue that chemical reactions are used to convert natural resources into synthetic products?
(1 point)
Responses
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 different.
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 the same.
The properties of synthetic materials and the natural resources used to make them are the same.
Synthetic materials and natural resources don't have any properties.
(1 point)
Responses
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 different.
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 the same.
The properties of synthetic materials and the natural resources used to make them are the same.
Synthetic materials and natural resources don't have any properties.
Answered by
?
In which of the following areas is there a large concentration of American Indian and First Nations peoples?
(1 point)
Responses
the interior west of the United States and Canada
the interior west of the United States and Canada
the Atlantic and Pacific coasts of the United States and Canada
the Atlantic and Pacific coasts of the United States and Canada
the Great Lakes region of the United States and Canada
the Great Lakes region of the United States and Canada
the Atlantic coast of the United States and Canada
(1 point)
Responses
the interior west of the United States and Canada
the interior west of the United States and Canada
the Atlantic and Pacific coasts of the United States and Canada
the Atlantic and Pacific coasts of the United States and Canada
the Great Lakes region of the United States and Canada
the Great Lakes region of the United States and Canada
the Atlantic coast of the United States and Canada
Answered by
?
hich of the following is a reason that few people live in northern Canada?
(1 point)
Responses
High levels of air pollution discourage people from settling there.
High levels of air pollution discourage people from settling there.
There are few jobs to attract people to the region.
There are few jobs to attract people to the region.
Melting glaciers pose an environmental hazard in the region.
Melting glaciers pose an environmental hazard in the region.
The Inuit refuse to let outsiders settle on their lands.
(1 point)
Responses
High levels of air pollution discourage people from settling there.
High levels of air pollution discourage people from settling there.
There are few jobs to attract people to the region.
There are few jobs to attract people to the region.
Melting glaciers pose an environmental hazard in the region.
Melting glaciers pose an environmental hazard in the region.
The Inuit refuse to let outsiders settle on their lands.
Answered by
?
Drag each box to show whether the scenario is interior migration or immigration.
(2 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Interior Migration
Immigration
(2 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Interior Migration
Immigration
Answered by
?
What does Interior Migration mean?
Answered by
?
would A person moves for Alberta from British Columbia be considered Interior Migration ?
Answered by
GPT 3.5
The atomic number of oxygen is 8.
Answered by
GPT 3.5
One atom of sulfur has 16 protons.
Answered by
GPT 3.5
The chemical symbol for lithium is Li.
Answered by
GPT 3.5
The described scenario represents a chemical change. The bubbling, warmth, and the formation of a new gas with the property of making a lit match glow brighter indicate the occurrence of a chemical reaction. A physical change typically involves a change in state, size, or shape of a substance without altering its chemical composition.
Answered by
GPT 3.5
Yes, a new gas was formed during the experiment. The bubbling observed indicates the release of gas and the presence of a chemical reaction. The gas that was captured and tested with a lit match also displayed a new property, making the match glow much brighter. This further confirms the formation of a different gas during the reaction.
Answered by
GPT 3.5
Yes, one of the substances formed during the experiment had a new property. After the combination of dry yeast and hydrogen peroxide, a gas was produced. This gas, when tested with a lit match, made the match glow much brighter than before. Therefore, the new property of the gas, in this case, is the ability to enhance the brightness of a lit match.
Answered by
GPT 3.5
Yes, it makes sense that methane is flammable while carbon dioxide is not. This is because we expect products and reactants to have different properties in a chemical reaction. Methane is a hydrocarbon with chemical bonds that can easily break and release energy, making it highly flammable. On the other hand, carbon dioxide is a stable gas composed of carbon and oxygen atoms that are tightly bonded, which makes it non-flammable. Therefore, the different properties exhibited by methane and carbon dioxide are consistent with the results of a chemical reaction.
Answered by
GPT 3.5
The boiling points of methane and water would likely be different because products and reactants usually have different properties. Methane is a hydrocarbon with relatively low molecular weight and weaker intermolecular forces, so its boiling point is significantly lower than that of water. Water, on the other hand, is a polar molecule with strong hydrogen bonding, resulting in a higher boiling point. Therefore, based on their chemical properties, we would expect the boiling point of methane to be lower than the boiling point of water.
Answered by
GPT 3.5
According to the given equation, 2K + 2H2O → 2KOH + some amount of H2, there are 4 atoms of hydrogen on the reactant side. On the product side, there are 2 atoms of hydrogen in KOH and an unspecified amount of H2. Therefore, the total number of hydrogen atoms on the product side cannot be determined from the given equation.
Answered by
GPT 3.5
The law of conservation of matter (or the law of conservation of mass) tells the students that matter is never gained or lost in a chemical or physical process. This means that in any chemical reaction or physical change, the total mass of the reactants will always be equal to the total mass of the products. Matter may change its form or rearrange its composition, but the overall amount of matter remains constant.
Answered by
GPT 3.5
The total mass of the products would be 114 grams because mass cannot be gained or lost in the process, according to the law of conservation of matter. In a chemical reaction, the mass of the reactants is equal to the mass of the products. Therefore, the combined mass of 78 grams of potassium and 36 grams of water would be equal to the total mass of the products.
Answered by
GPT 3.5
True. Synthetic products can be made from natural resources like petroleum (oil). Synthetic materials are chemically derived from natural resources through various manufacturing processes.
Answered by
GPT 3.5
True. Synthetic products like plastic seat belt parts can help save people from death or injury. Synthetic materials such as plastics are often used in the production of seat belt components, providing strength, durability, and safety features that help protect individuals in car accidents.
Answered by
GPT 3.5
True. Synthetic products can contribute to environmental damage because many of them take a long time to decompose. Synthetic materials like plastics are not easily biodegradable and can persist in the environment for hundreds of years, causing pollution and harm to ecosystems. Proper disposal and recycling of synthetic products are important to minimize their negative impact on the environment.
Answered by
GPT 3.5
True. Synthetic products can make it easier and cheaper to package and ship other products. Synthetic materials like plastics have properties such as durability, lightweight, and flexibility, which make them ideal for packaging and shipping goods. They can protect products from damage, reduce transportation costs due to their lighter weight, and provide convenience in handling and storage.
Answered by
GPT 3.5
The statement "The properties of synthetic materials and the natural resources used to make them are different" gives a good clue that chemical reactions are used to convert natural resources into synthetic products. This is because the properties of synthetic materials, which are chemically derived from natural resources, can be distinctly different from the properties of the original natural resources. Chemical reactions often involve altering the composition and structure of substances, resulting in new materials with unique properties.
Answered by
GPT 3.5
the Atlantic and Pacific coasts of the United States and Canada
Answered by
GPT 3.5
There are few jobs to attract people to the region.
Answered by
GPT 3.5
I apologize, but I'm unable to interact and drag responses as you described. However, I can provide you with the definitions of interior migration and immigration so that you can determine which scenario falls under each category.
Interior Migration: This refers to the movement of individuals or populations within the same country or region, typically from rural to urban areas or from one city or state to another within the same country.
Immigration: This refers to the act of individuals moving from one country to another with the intention of settling and residing in the new country.
Based on these definitions, you can categorize the scenarios accordingly.
Interior Migration: This refers to the movement of individuals or populations within the same country or region, typically from rural to urban areas or from one city or state to another within the same country.
Immigration: This refers to the act of individuals moving from one country to another with the intention of settling and residing in the new country.
Based on these definitions, you can categorize the scenarios accordingly.
Answered by
GPT 3.5
Interior migration refers to the movement of individuals or populations within the same country or region. It involves people relocating from one place to another within the borders of their own country or region. This can include moving from rural areas to urban centers or from one city or state to another within the same country. Interior migration is typically driven by factors such as economic opportunities, better living conditions, access to education or healthcare, or personal preferences.
Answered by
GPT 3.5
Yes, a person moving from British Columbia to Alberta within Canada would be considered interior migration. This is because the movement is occurring within the borders of the same country, from one province to another.