What is amplitude in chemisty
Answers
Answer:
CHEMISTRY GLOSSARY
Amplitude is the displacement of a wave from zero. The maximum amplitude for a wave is the height of a peak or the depth of a trough, relative to the zero displacement line
Related Questions
What is the scientific term for rocks formed from lava?
gabbro
rhyolite
extrusive
intrusive
Answers
Answer:
Hi! your answer is Extrusive
What type of heat transfer is demonstrated in Part 1?
How long did it take for the butter to melt off of the plastic fork? The metal fork?
How do explain the difference in time between the two forks?
What type of heat transfer is demonstrated in Part 2?
What happened when the warm water bottle was placed over the cold water bottle? Why?
What happened when the cold water bottle was placed over the warm water bottle? Why?
Answers
Answer:
32 hours
Explanation:nc
Guys, please help I'm stuck on this.
Answers
Which statement is NOT true regarding natural vs. synthetic materials?
A) An example of a natural material is sand.
B) An example of a synthetic material is nylon.
C) Synthetic materials are made from natural resources.
D) Synthetic materials only have a negative impact on society.
Answers
Answer:
Option C
Explanation:
Answer:
Option C
Explanation:
im giving brainliest
Answers
Answer:
a
Explanation:
just needed the points, sorry
Answer:
I'm confused what is this?
Explanation:
Henry is in the community investigating sources of chemical energy for his science experiment. Select the best examples of chemical energy Henry can use.
A gas station and people playing hopscotch
A squirrel eating acorns and a fire burning
Someone reading a book and eating a sandwich
Someone sliding down the slide and someone drinking water
Answers
Answer:
B
Explanation:
BRAINLIEST IF CORRECT
Plant seeds can be dispersed by
wind.
water.
animal fur.
all of the above.
Answers
Answer:
D) All Of The Above
Explanation:
There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals.
Some plants are serotinous and only disperse their seeds in response to an environmental stimulus.
MARK THIS ANSWER AS THE BRAINLIEST PLEASE ❤️
Which unit listed below is NOT a standard unit of measure?
inches
meters
pint
quart
its science btw
Answers
Answer:
pint
Explanation:
Answer.............
Calculate the volume of a 2.30 mol/L solution of Na2CO3 that contains 0.325 mol of solute.
Answers
Answer:
141 mL is the volume of a 2.30 mol/L solution of Na₂CO₃ that contains 0.325 mol of solute.
Explanation:
Molarity is a measure of concentration of a solution that indicates the amount of moles of solute that appear dissolved in each liter of the mixture.
So 2.30 mol / L indicates that 2.30 moles dissolve in 1 L of solution. You want to know in what volume is contained 0.325 mol of solute. For this you apply the following rule of three: if 2.30 moles of solute are present in 1 L of solution, 0.325 moles in how much volume is it?
\(volume=\frac{0.325 moles*1L}{2.30 moles}\)
volume= 0.141 L
Being 1L=1000 mL, then 0.141 L=141 mL
141 mL is the volume of a 2.30 mol/L solution of Na₂CO₃ that contains 0.325 mol of solute.
Properties of cotton ball
Answers
Answer:
1. Absorbent
2. Breathable.
3. Hypoallergenic.
4. Non-toxic.
5. High wet modulus (stronger when wet)
6. Biodegradable.
7. Excellent wicking.
8. Wipe dry performance.
Answer:
Stringy, light, spherical, absorbant, small, and thread-like (because you can make cotton into clothes).
PLEASE HELP!! Phytoplankton are one of the most important parts of the food web in the Hudson river. what evidence supports the conclusion? A) The population of phytoplankton dropped sharply soon after zebra mussels invaded the river. B) The decrease in phytoplankton caused a decrease in the river's zooplankton, fish, and native mussel populations. C) The decrease in phytoplankton meant that the river's turbidity, or cloudiness decreased. D) Zebra mussels caused oxygen levels in the river to drop, partly by removing the phytoplankton that produce oxygen.
Answers
Answer:
Your answer is b
Explanation:
the answer is b because if there is no phytoplankton then there will be no fish and if you take out one part of the food chain then the whole chain comes apart. So meaning if there is no phytoplankton, then there is no fish, if there isn't any fish, then the other animals that come to eat at the river will eventually starve to death or move somewhere else to get more food.
The statement that supports the fact that phytoplankton are one of the most important parts of the food web in the Hudson river is; "the decrease in phytoplankton caused a decrease in the river's zooplankton, fish, and native mussel populations."
Phytoplankton refers to the microscopic and photosynthetic organisms found in water bodies. They are able to trap energy directly from the sun to produce their own food by photosynthesis.
If this primary productivity is hampered in the food web in the Hudson river, there will be nothing for the small fishes to and other native populations to eat and their population will begin to decrease.
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Someone please help me if right I’ll give you 5$
Answers
Answer:DId you even read it you have to that in your lab class and says you need other information aint no way i can answer that
Explanation:
Describe the tone of the poem. How does the author feel about them topic? Cite evidence to support your answer
In the "Ocean Gift"
Answers
I need help quickly, this assignment is due in a few hours. I have a few 8th grade science questions I need help with. These is not need to explain your answer, just tell me if the answer is a,b, or c. Also, please answer all of the questions listed not just some of them. I will be giving 20 points if you answer, and brainly to the first person to answer. The questions look really complicated but it is mainly just a long description. The questions themselves seem simple.
QUESTION ONE : Miranda was learning to bake bread at home. Her first few batches of dough did not rise, or expand, as much as they should have. Miranda's mother noted that the kitchen was cold and suggested that the dough might not be warm enough to rise. Miranda decided to test her mother's suggestion. She made a large batch of dough and divided it into six equal-sized balls. Then, she put each ball into a bowl. She left three bowls on the counter in the kitchen, where the temperature was 63oF. She left the other three bowls on her desk in her upstairs bedroom, where the temperature was 80F. After one hour, Miranda measured the size of each dough ball.
Which of the following was the dependent variable in the experiment?
a. the temperature where the dough was left to rise
b. the ingredients used to make the dough
c. the size of each dough ball
QUESTION TWO: Jada liked to make guacamole, but she could often find only unripe avocados at the grocery store. In biology class, Jada learned that ripe fruits produce a gas called ethylene that can cause other fruits to ripen. Jada wondered whether storing ripe bananas with unripe avocados would make the avocados ripen faster. Jada prepared four paper bags with five unripe avocados in each bag. She added on ripe banana to two of the bags. Then, Jada sealed all four bags. After three days, she opened each bag and counted the number of ripe avocados in each bag.
Which of the following was the independent variable in this experiment?
a. the type of paper bag used
b. the number of bags with a ripe banana
c. the number of ripe avocados
QUESTION THREE: Colette was using steel to make rusted sculptures. After building each sculpture, she caused the steel in the sculpture to rust by placing it into tub filled with salt water for eight hours. Colette wondered if steel would rust faster submerged in vinegar instead of salt water. To find out, Colette cut ten squares of steel sheet metal and split them into two equal groups. She put one group of squares into a tub filled with salt water and the other group of squares into a tub filled with vinegar. Once an hour for eight hours, Colette counted the number of rusted steel squares in each group.
Which of the following was a variable that was held constant (control variable) in this experiment?
a. the type of liquid used
b. the size of the squares of steel sheet metal
c. the number of rusted steel squares
QUESTION FOUR: David divided 40 unripe bananas evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four without holes. He kept the bags at room temperature for three days. Then, David opened the bags and counted the number of brown spots on each banana. He compared the average number of brown spots on bananas from bags with holes to the average number of brown spots on bananas from bags without holes.
Identify the question that David's experiment can best answer.
a. Do bananas develop more brown spots when they are kept at room temperature compared to in a cold refrigerator?
b. Do bananas develop more brown spots if they are kept in bags with holes compared to bags without holes?
c. Do bananas develop more brown spots when they are kept in brown paper bags compared to in a plastic bag?
QUESTION FIVE: Ten groups of chemistry students combined three solutions that, when mixed, chemically reacted and turned blue. Before mixing, five groups of students heated the solutions to 25C, and five other groups heated the solutions to 50C. The students recorded how many seconds it took for the mixtures to turn blue. Then, the groups shared their results, and the class compared the time it took for the mixtures to turn blue at 25C and at 50C.
Identify the question that the students' experiment can best answer.
a. Does the type of color the mixture produces depend on the temperature of the solutions?
b. Does the mixture of solutions release more gas when they are mixed at 25C compared to 50C?
c. Does the mixture's color change faster when the solutions are mixed at 25C or 50C?
Answers
Question 2: A
Question 3: B
Question 4: B
Question 5: C
How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
Answers
c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom
Which of the following statements fully describes what an object may do when it experiences unbalanced forces? Select the two best answers.
A. It may change directions.
B. It will move at a constant speed.
C. It may slow down.
D. It may slow down or speed up.
E. It will stay stationary.
Answers
Answer:b
Explanation:
What is NOT true about genes and chromosomes?
Genese are located on chromosomes
Chromosomes are in the nucleus
A single chromosome can contain hundreds of genes
All of these are true
Answers
Let us go option by option :
1) Genes are located in chromosomes. TRUE
Chromosomes are in cell nucleus. A chromosome contains hundreds and thousands of genes. A normal have 23 pairs of chromosomes, and a total of 46.
2) Chromosomes are the in nucleus.
TRUE
Chromosome is structure found in nucleus of the cell. It is made up of protein and DNA.
3) A single Chromosome can contain hundreds of genes.
TRUE
single Chromosome can contain hundreds of tgenes.
4) All of the above
TRUE
As all the statements above are true. The correct option is 4.
Answer:
all of them are true
Explanation:
this is because chromosomes contain genetic materials and it is present in the nucleus.
Therefore, the correct option is 4) all of these are true
no problem
A water molecule takes a journey that includes a cloud, mountain, atmosphere, lake, and groundwater. Write a scientific explanation about the directions the water molecule would move and what causes it to move through the cycle. (Must use CER!) (Finish it immediately!)
Answers
Answer:
Claim: A water molecule moves through the water cycle in a continuous journey that involves changes in state and location.
Evidence: The journey of a water molecule begins when it evaporates from a body of water, such as a lake or the ocean, due to the energy from the sun. The water molecule rises into the atmosphere and joins other water molecules to form a cloud. As the cloud moves, it may pass over a mountain and cool, causing the water molecules to condense into liquid or solid form and fall as precipitation. Some of the precipitation may fall into a lake or river, where it can flow downstream and eventually enter the groundwater system. The water in the groundwater system may eventually resurface in a lake or river, or it may be extracted from a well for human use.
Reasoning: The movement of a water molecule through the water cycle is driven by a combination of physical and chemical processes, including evaporation, condensation, precipitation, and infiltration. The sun provides the energy that drives the cycle, causing water to evaporate and rise into the atmosphere. As the water molecules cool, they may condense into clouds and eventually fall as precipitation. The movement of water through the cycle is also influenced by factors such as temperature, pressure, and gravity. For example, water will flow downhill due to gravity, which can cause it to move through the groundwater system and eventually resurface in a lake or river. Overall, the water cycle is a complex and continuous journey that is essential for maintaining the Earth's water supply and supporting life.
Explanation:
help pls i will give brainlest
Answers
Answer: its 5ft tall and 12 inches
Explanation:
3. A recent flood in the area has caused many short-term changes to
the ecosystem. Which is a long-term change?
A. Standing water in the streets and sewers
B. Temporary displacement of organisms
C. Permanent change in the landscape
D. Poor water quality in rivers and streams
Answers
Answer:
c
Explanation:
While standing water in the streets and sewers (option A) and poor water quality in rivers and streams (option D) may persist for some time after the flood, they are generally considered short-term changes as they can eventually be remedied through clean-up efforts and restoration programs.
Temporary displacement of organisms (option B) can also be considered a short-term change, as organisms will eventually return to their original habitats once conditions improve.
However, a permanent change in the landscape (option C) such as altered river channels, new water bodies, or changes in topography, can have lasting effects on the ecosystem and its inhabitants. These changes may alter habitat suitability, nutrient cycling, and water availability, which can impact the ecosystem for years or even decades to come.
Answer: C
Explanation:
The landscape could be flooded. Houses and buildings may be restricted.
Plz help! The best answer will get brainliest!
What is the net force acting on an object?
Answers
Answer:
Gravity
Explanation:
Answer:The net force is the sum of all the forces that act upon an object.
Explanation:
Which substance is a polymer found in nature?
Answers
Answer:
wool, silk, cellulose, DNA and proteins.
Explanation:
Some examples of naturally occurring polymers are wool, silk, cellulose, DNA and proteins.
Explanation=
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
What information does the periodic table give you?
Answers
The periodic table contains information about each of the known elements. It includes the name of each element, its atomic number, its atomic mass and its chemical symbol.
The periodic table is divided using groups (columns) and periods (rows).
Each specific group or period has a specific pattern in the elements.
The modern periodic table is arranged in order of increasing atomic number.
I’m not really sure what information what you were asking for but I hope this helps..
The modern periodic table was created by Dmitri Mendeleev with the main goal of showing rows and columns with a logic arrangement of chemical elements.
In each column, the groups, the elements have the same number of electrons in the outermost shells. While the rows are called periods or series.
If a substance has a density of 19 g/cm3, then what is the mass of 8 cm3 of this substance?
Answers
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
these days cloths made out of a mixture of synthetic fiber and natural fibers are more popular than those made purly out of synthetic fiber. Discuss the reason for this
Answers
Answer: Clothes purely made of synthetic fibers are not comfortable in a hot and humid environment as they don't have the property to absorb water or sweat quickly so their water-resistant property makes them unsuitable for hot humid environment .
Explanation:
Mixing of synthetic fiber and natural fibers enhances the properties such as strength, elasticity, and ease of ironing and washing. Generally in hot environments it is preferred to wear a mixture of synthetic and natural fiber than wearing only clothes made from synthetic fiber .
Moreover, mixing synthetic fibres with natural fibres enhances their properties, such as strength, elasticity and ease of washing and ironing. Hence, these days clothes made out of a mixture of synthetic fibres and natural fibres are more popular than those made purely out of synthetic fibres.
Occurs when the particles in one part of an object _____________ more and ____________ with ______________ particles, making them ______________ ______________.
Different _______________ conduct ___________ at different ___________. ____________ are generally good conductors of heat compared to ______________ (paper, wood, plastics).
____________ are better conductors then liquids because _________________ in solids are ______________ _______________.
Answers
Occurs when the particles in one part of an object vibrate more and collide with neighboring particles, making them transfer energy.
Different materials conduct heat at different rates. Metals are generally good conductors of heat compared to non-metals (paper, wood, and plastics).
Solids are better conductors than liquids because the particles in solids are tightly packed together.
What is thermal energy?Thermal energy is the energy associated with the random motion of particles in a substance. It is a form of kinetic energy created from the vibrational and rotational motion of atoms and molecules in a substance.
All objects contain thermal energy and when two objects of different temperatures are in contact, heat flows from the hotter object to the colder object until they reach a state of thermal equilibrium. Thermal energy is used in many applications such as heating, cooling, and even cooking food.
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How is density different from weight and mass?
Answers
Hello there!
How is density different from weight and mass you say? It's simple!
1. Unlike weight, density is composed of mass and volume.
2. By dividing the mass over the volume, you can determine an object's density, while weight is the product of mass and gravity.
Hope this helps :) if so, can I get Brainliest?
Weight is how heavy an object is/ how much force it exerts
Mass is how much matter is in an object
I hope this helps! If you need the formulas on how to get them you can always comment and ask :)
True or False: In cellular respiration, carbon dioxide and water are the reactants, and fuel and oxygen are the products.
Answers
Answer:
The statement is false.
Explanation:
In cellular respiration, the fuel (glucose) and oxygen are the reactants, and carbon dioxide, ATP and water are the products.
Answer:
It's False
Explanation: