answer: D. Reflection happens when a wave bounces back against an obstacle, while diffraction happens when a wave bends around an obstacle.
Earlier in the day, Will learned about the kinds of changes in matter that can take place.
He wanted to explore these changes in more depth, so he compared the two kinds of ways matter changes and how they differ. He recorded his findings in his science notebook. What are the ways in which matter changes and how do they differ?
There are two types of change in matter: physical change and chemical change. As the names suggest, physical changes never change the identity of the matter, only its size, shape or state. In a physical change, atoms are not rearranged and the matter's physical and chemical properties are unchanged.
Answer:
There are two types of change in matter: physical change and chemical change. As the names suggest, physical changes never change the identity of the matter, only its size, shape or state. In a physical change, atoms are not rearranged and the matter's physical and chemical properties are unchanged.
How can the rate of a reaction be decreased?
Responses
A: having more surface area
B: lowering the amount of reactants
C: adding a catalyst
D: raising the temperature
Alex saw a rusty old car in an abandoned lot. Because he had recently read about chemical reactions, he began to wonder how the rust formed. What happened to cause the rust on the steel car?
A. A physical change took place in the steel of the car to form rust.
B. Oxygen in the air reacted with the paint on the car and formed rust.
C. Oxygen in the air chemically combined with the iron in the steel to form rust.
D. A decomposition chemical reaction took place when the iron in the steel mixed with oxygen to form rust.
Answer: I think it is D
Explanation:
After learning about the law of conservation of mass, Remy began to wonder about how to best test this law. She wanted to show that the amounts of matter did not change but produced an equal amount of a different kind of matter. What is the best way to study this law?
A. in a homogeneous mixture
B. in a heterogeneous mixture
C. in an open system
D. in a closed system
A high concentration of hydrogen ions (H+) means a solution is what? (example: HCl aka Hydrochloric Acid)
A) very basic
B) neutral
C) neither acidic or basic
D) very acidic
Answer:
Explanation: it would be D because hydrogen is very acidic and don't worry i'll always be here to help
Read the selection from the section "Refraction." Another behavior is called refraction. Sometimes, a wave moves from one medium to another, like from water to air. It changes direction. This is refraction. Fill in the blank. A "medium" is ____.
Answer: A
a substance that something moves through
B
an obstacle that something cannot get around
C
a type of wave that can move very fast
D
a part of a wave that is difficult to measure
Explanation:
Sometimes, a wave moves from one medium to another, like from water to air. It changes direction. This is refraction. A "medium" is a substances that something moves through it.
Refraction is defined as the change in the speed and direction of a wave passing from one medium into the another medium. Refractive index varies according to the wavelength of light. A medium is defined as the substance that pass light from one substance to another substance. The medium act as a carrier .
Thus, Sometimes, a wave moves from one medium to another, like from water to air. It changes direction. This is refraction. A "medium" is a substances that something moves through it.
To learn more about Refraction here
https://brainly.com/question/11153660
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Jasmine has been reading about mixtures and how they can be classified.
After reading that a solution is a homogeneous mixture, she wondered about her favorite morning drink, grape juice. Which statement about the solution that makes up grape juice is true?
A. Sugar is the solvent and water is one of the solutes.
B. Water is the solvent and sugar is one of the solutes.
C. Grapes are the solvent and water is one of the solutes.
D. Sugar is one of the solvents and grapes are one of the solutes.
Answer:
It is b
Explanation
Because i already did the test
please don't troll and be quick This is only for people who want brainlist and a lot of points
1.Record your observations. Include a data table with the names of the volcanoes, their distance from Kilauea, and their ages.
these are separate answers by the way
good luck
2. Make a graph that shows the distance between the volcanoes and Kilauea versus the ages of the volcanoes. You may plot your data on the template provided or use a spreadsheet program to make a graph.
Answer:
there is no notebook or import opinion on this app though how would i?
25 points! brainliest for correct answer!
what are TWO characteristics of a neutron?
A. found outside the nucleus
B. negative electric charge
C. no electric charge
D. found in the nucleus
Answer: Your answers are C and D.
Explanation:
Luisa likes to drink water from a plastic bottle. She knows the bottles were formed from synthetic polymers that were created in a chemical reaction. She also knows that synthetic materials can cause problems. Which statement explains the kind of problem that can develop from using synthetic materials such as plastic?
A. Plastics have changed the way people use materials.
B. Plastics have made the lives of people easier.
C. Plastics have contributed to more pollution.
D. Plastics have made more work for people.
Read the following paragraph from the section "Interference."
Consider two waves with the same wavelength and cycle. They are traveling toward each other. They are coming from opposite directions. The crests of the waves arrive at the same point at the same time. They combine to form a new, larger wave. This is called constructive interference.
Which word could replace "opposite" without changing the meaning of the paragraph?
A
similar
B
wrong
C
equal
D
different
Answer:
D. Different all the others are wrong.
Answer: the answer is D :) good luck
Explanation:
Can someone’s verify? A player hits a base ball
Why do waves spread out? A. because they meet another wave B. because they pass through water C. because they hit a big obstacle D. because they pass through a small opening
Answer: the answer is C :)
Explanation:
2Fe + 6HC,H;02 - 2Fe(C2H302)3 + 3H2
How many different elements are in the chemical equation?
Answer:
4 different elements; iron,carbon, hydrogen and oxygen
This is only for people who want brainlist and a lot of points and i give the brainlist
1.Record your observations. Include a data table with the names of the volcanoes, their distance from Kilauea, and their ages.
these are separate answers by the way
good luck
2. Make a graph that shows the distance between the volcanoes and Kilauea versus the ages of the volcanoes. You may plot your data on the template provided or use a spreadsheet program to make a graph.
Answer:
data table not found
Explanation:give me the data table
Answer:
can you give the template?
Explanation:
can you give the template?
Please help! Answer the following questions, thank you!♡♡
Answer:
1. The name of the scale scientists use to measure acidity is a PH scale.
2. Acids fall from 0-6 on the scale.
3. Bases fall from 8-14 on the scale.
4. Water falls on 7 on the scale.
The answer to your questions are
1.The name of the scale scientists is PH scale
2.Acids fall from 0-6 on the scale
3.Bases fall from 8-14 on the scale
4.Water falls on 7 on the scale
Hope this helps
After having studied chemical reactions in school, Jose knew that when oxygen and hydrogen gases combine in the correct amounts, the combination yields a new substance, water. Choose the words to finish the sentence.
The hydrogen and oxygen are (blank) while the water is the (blank)
The hydrogen and oxygen are reactants while the water is the product.
What is chemical reaction?Chemical reaction is defined as a procedure that involves changing a substance's molecular or ionic structure, as opposed to changing its physical shape or undergoing a nuclear reaction. Breaking chemical bonds between reactant molecules and creating new bonds between atoms in product particles are two aspects of chemical reactions .
Water is created when hydrogen and oxygen burn together. The reaction is known as a combination reaction when two reactants combine to generate a single component. As a result, in this instance, two reactants hydrogen and oxygen combine to produce a single product water molecules while also releasing heat.
Thus, the hydrogen and oxygen are reactants while the water is the product.
To learn more about chemical reaction, refer to the link below:
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Derrick decided to research what factors might affect the properties of the solubility of a solution. After completing his research, Derrick knew that several factors affected the properties of solubility. Explain the factors that affect the properties of the solubility of a solution.
Jasmine has been reading about mixtures and how they can be classified.
After reading about the kinds of mixtures and their characteristics, she wants to know how a heterogeneous mixture is different from a homogeneous mixture. What is the main difference between these two kinds of mixtures?
A. In a heterogeneous mixture, the components are not evenly spread throughout the mixture. In a homogeneous mixture, the components are evenly spread throughout the mixture.
B. In a homogeneous mixture, the components are not evenly spread throughout the mixture. In a heterogeneous mixture, the components are evenly spread throughout the mixture.
C. In a homogeneous mixture, the components are easy to see and are well mixed so the components show up in different parts of the mixture.
D. In a heterogeneous mixture, the components are difficult to see and are spread out uniformly throughout the mixture.
Answer: The correct option is (In a heterogeneous mixture, the components are not evenly spread throughout the mixture. In a homogeneous mixture, the components are evenly spread throughout the mixture.)
Explanation: Have a good day :)
Answer: its A
Explanation:
I already did the test
How does hot spot theory explain how the Hawaiian Islands formed? and what tools did you use to collect your data also describe the procedure that you followed to collect your data.
The hot spot theory explains how the Hawaiian Islands formed. According to this theory, the islands were created by a hot spot, which is an area of intense volcanic activity deep within the Earth's mantle. As the Pacific tectonic plate moves over the hot spot, it causes magma to rise to the surface, resulting in the formation of a new island. Over time, as the plate continues to move, new islands are formed while older islands move away from the hot spot and eventually erode.
To collect data about the formation of the Hawaiian Islands, scientists have used various tools and methods:
Seismic studies: Scientists have used seismometers to measure seismic waves and study the Earth's interior structure. By analyzing seismic data, they can identify the presence of a hot spot and understand its characteristics.Geochronology: Scientists have used radiometric dating techniques to determine the ages of rocks found on the islands. By dating volcanic rocks at different locations, they can create a timeline of island formation and track the movement of the hot spot.Bathymetry: Bathymetric surveys have been conducted using sonar technology to map the ocean floor around the Hawaiian Islands. This helps scientists understand the topography and the underwater volcanic activity associated with the hot spot.Core sampling: Scientists have collected core samples from the ocean floor to study the composition of volcanic rocks. By analyzing these samples, they can determine the chemical and mineralogical characteristics of the lava erupted from the hot spot.
Overall, the data collection procedure involves a combination of field surveys, laboratory analyses, and data interpretation. Scientists use a multidisciplinary approach to gather information from various sources and develop a comprehensive understanding of the Hawaiian Islands' formation.
I hope this explanation helps you understand how the hot spot theory explains the formation of the Hawaiian Islands and the tools and procedures used to collect relevant data.
Hope my answer helps you✌️
Mark BRAINLIEST
What might happen if there is excessive water removal from the Central Valley Aquifer in California?(1 point) Responses
A. It can cause severe weather changes in California.
B. It can cause severe weather changes in California.
C. It can transform California completely to a desert.
D. It can transform California completely to a desert.
Answer:
A
Explanation:
California is surrounded by the sea so it would never run out.
Table D. pH of Serial Dilutions
what is the Predicted pH range of A2 (it doesnt give the liquid name)
What is the Predicted pH range of A3 (no name of liquid given)
Please HElp!!!
Answer:
Gatorade ! Because it is delicious and yummy
Choose the words to finish the sentence. After learning about the law of conservation of mass, Sammy became interested in balancing equations. He knew that the symbol for aluminum was Al and silver tarnish was Ag2S. He also knew that mixing the two chemicals yielded pure silver, or Ag, in an aluminum sulfide solution. The equation showing this reaction is shown below.
3 Ag2S + 2 Al → 6 Ag + Al2S3
This equation is (blank) and it represents a (blank) chemical reaction.
Answer: This equation is ionic and represents a displacement chemical reaction.
Explanation:
It is a displacement because aluminium displaces silver from silver sulphide because aluminium is more reactive than silver in the reactivity series and therefore displaces it.
This is only for people who want brainlist and a lot of points
1.Record your observations. Include a data table with the names of the volcanoes, their distance from Kilauea, and their ages.
these are separate answers by the way
good luck
2. Make a graph that shows the distance between the volcanoes and Kilauea versus the ages of the volcanoes. You may plot your data on the template provided or use a spreadsheet program to make a graph.
