FOR BRAINLIEST FOLLOW INSTRUCTIONS:
Please answer correctly, no guesses.
Do not put “I think” in your answer
Please do not do this just for the points
Please answer all questions.
Answers
Answer:
Explanation:
Physical Changes: substance remains the same in chemical composition, substance appearance changes
Chemical Changes: a new substance is formed, both chemical and physical composition change
5 types of Physical Change: Boiling, melting, freezing, condensing, vaporizing
5 signs of Chemical Change: Change in color, change in smell, change in temperature, bubbles forming from mixing substances without boiling them, a solid forming from the mixing of two liquids
The matter of the wood would not just be the ashes, as matter can't be created or destroyed, the matter that made up wood would have reacted with oxygen to form carbon dioxide in the air
Related Questions
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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What does the latent heat of fusion measure?
O A. The energy required to heat a substance
O B. The energy required to form a substance
O c. The energy required to melt a substance
O D. The energy required to boil a substance
Answers
The latent heat of fusion measure
O c. The energy required to melt a substance
What is latent heat of fusion?The latent heat of fusion is the enthalpy change of any amount of substance when it melts. The amount of heat required to convert a unit mass of the substance from the solid state to the liquid state without changing the temperature.
Thus, correct option is C.
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Answer:option D The energy required to boil a substance
Explanation:just did the quiz
What is a disadvantage for organisms that reproduce asexually rather than sexually?
Responses
The offspring receive less genetic material.
The offspring receive less genetic material.
The offspring take more time to grow and develop.
The offspring take more time to grow and develop.
The offspring resemble the parent, which makes it difficult to distinguish them from each other.
The offspring resemble the parent, which makes it difficult to distinguish them from each other.
The offspring are genetically identical to each other, which reduces their ability to adapt to any changes in the environment.
Answers
Answer:
The offspring are genetically identical to each other, which reduces their ability to adapt to any changes in the environment.
Explanation:
If there was a disease (as an example) that negatively effected both organisms that reproduce asexually and sexually, the organisms that reproduce asexually would have a disadvantage. Offspring of the organisms that reproduce sexually contain the genetic material of both parents. This would lead to a higher chance of the ability to adapt to any changes, or even a chance of being immune to that disease. However, offspring of the organisms that reproduce asexually are only replicates of the parent. This means that the asexually produced offspring and the parent organism could be harmed more than the sexually produced offspring and parent organism. The organism would have reduced abilities to adapt according to the changes in the enviroment.
The major disadvantage for organisms that reproduce asexually is option 4 that the offspring are genetically identical to each other, which reduces their ability to adapt to any changes in the environment.
Asexual reproduction is a type of reproduction where only a single parent is involved in creating offspring. The offspring reproduced are genetically identical to the parent. while this form of reproduction has many advantages including rapid and quick reproduction, it posses some major drawbacks as well.
As the genetic diversity is absent in asexual reproduction, adapting and surviving in the dynamic environment is tough for the offspring. Difficulty in catching up with the changing circumstances can sometimes lead to harm to upcoming species.
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Water is one of the most important things to you, and to all living things. The fact that you can measure the volume of room temperature water with a beaker is a clue that room temperature water is in liquid form. If you keep raising the temperature of that water, it will eventually begin to boil, bubbling up and releasing steam. The steam is an example of what? *
Answers
Answer:
steam is and example of vapor and gas.
Answer:
evaporation
Explanation:
because the water boils and steam leave so it's evaporation
please answer this in a hurry will give 10 pts
due tommorow
Answers
What type of person studies and collects data on the weather?
Answers
When using the absolute method to assess muscular endurance, you should adjust the weight according to each individual's strength ability.
Please select the best answer from the choices provided.
T
F
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You are given an unknown substance, which may be an acid or a base or may be neutral. To determine which, you will need to test for specific properties. Select the laboratory equipment below that would help classify this substance.
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Inappropriate equipment-magnet, hot plate, beaker of water, conductivity tester, and balance
To determine the need to test for specific properties the equipment used is litmus paper.
What are specific properties?Specific properties are defined as a features of a material are generated from its other extensive and intensive properties. The uses of specific properties are Ranking, Classifying, and Comparing: Specific features can be used to compare two attributes while reducing the impact of differences in a third attribute.
Litmus paper is defined as a kind of paper that can be used to detect acidity because it changes color in relation to how acidic the solution it is dipped in is. As blue litmus paper turns red under acidic conditions, and red litmus paper turns blue under basic or alkaline settings, the primary application of litmus is to evaluate whether a solution is acidic or basic.
Thus, to determine the need to test for specific properties the equipment used is litmus paper.
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Can u please help me , I couldn’t figure it out for hours. It’s just q e not d or 6 .
Answers
Answer:
if excess acid is added to the solution, it will be more acidic.
Explanation:
The pH of potassium hydroxide= 10 (OH- ions)
pH of hydrochloric acid= 3 (H+ ions)
KOH + HCl → KCl + H2O
the pH of the solution will be 7 as it is a neutralisation reaction.
But if the acid is more in amount there will be more H+ ions and the solution will have a lower pH.
(the higher the concentration of H+ ions the more the acidic the solution,
the higher the concentration of OH- ions the more alkaline a solution is. )
Radiation from structures that have a very high temperature is collected by
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I would radiation a robotics arm but for a heated surphace is Shiny surfaces are poor absorbers and emitters (but they are good reflectors of infrared radiation).
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
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23. Read the scenario. then, choose the correct answer.
You are trying out for the basketball team and can’t decide which shoe will help you run faster. You have three different shoes, red, blue, and green, and want to perform a test to see which one you should wear. You decide to run from one side of the court to the other in each shoe and see which one you have a faster time in. You state that if you run in the red shoe, you will run faster.
The different types of shoes would be the ______.
dependent variables
hypotheses
procedural variables
independent variables
22.
Read the scenario. then, choose the correct answer.
You are trying out for the basketball team and can’t decide which shoe will help you run faster. You have three different shoes, red, blue, and green, and want to perform a test to see which one you should wear. You decide to run from one side of the court to the other in each shoe and see which one you have a faster time in. You state that if you run in the red shoe, you will run faster.
The speed you run for each time trial would be the ______.
procedural variable
dependent variable
independent variable
hypothesis
24.
Read the scenario. then, choose the correct answer.
You are trying out for the basketball team and can’t decide which shoe will help you run faster. You have three different shoes, red, blue, and green, and want to perform a test to see which one you should wear. You decide to run from one side of the court to the other in each shoe and see which one you have a faster time in. You state that if you run in the red shoe, you will run faster.
What type of data are you collecting?
mode
mean
qualitative
quantitative
25.
Read the scenario. then, choose the correct answer.
You are trying out for the basketball team and can’t decide which shoe will help you run faster. You have three different shoes, red, blue, and green, and want to perform a test to see which one you should wear. You decide to run from one side of the court to the other in each shoe and see which one you have a faster time in. You state that if you run in the red shoe, you will run faster.
Why is this investigation NOT an experimental investigation?
Answers
Answer:
procedural variables
hypothesis
quantitative
What are the ways humans use, collect, and distribute renewable and nonrenewable natural resources?
Your answer should include at least six complete sentences to explain the claim, evidence, and reasoning.
Answers
Answer:
Air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.
Explanation: HOPE THIS HELPS!!!!Match these items.
1. imprint of plant or animal
original-remains fossil
2. undecayed plant or animal part
carbonized fossil
3. replaced by a mineral
petrified fossil
4. only carbon remains
cleavage
5. mountain
geology
6. from magma
metamorphic
7. from physical and chemical changes
igneous
8. sandstone
print fossil
9. helps identify rocks
landform
10. science of Earth
sedimentary
Answers
1. print fossil
2. carbonized fossil
3. petrified fossil
4. cleavage
5. landform
6. igneous
7. metamorphic
8. print fossil
9. geology
10. sedimentary
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The print fossil, original-remains fossil, petrified fossil, carbonized fossil, landform, igneous, metamorphic, sedimentary, cleavage, and geology are the respective matches as given in the question.
Print fossil is imprint of plant or animal and basically known as fossil impression. Original-remains fossil comprises of the original tissues and parts of organism and undecayed plant or animal part. Petrified fossil is replaced by a mineral. Carbonized fossil is only carbon remains. Landform is a mountain. Igneous is from magma.
Metamorphic is from physical and chemical changes. Sedimentary rocks are sandstone. Cleavage helps to identify rocks. Geology is the study of science of earth.
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What are the three essential theories in Earth science?
Answers
Answer:
Three essential theories for Earth Science are the theory of evolution, the theory of plate tectonics, and the theory that human activities are altering Earth's climate
Explanation:
Three essential theories for Earth Science are the theory of evolution, the theory of plate tectonics, and the theory that human activities are altering Earth's climate
Please help!!
What do scientists do when they want to name a new organism?
all of the above
They see how the organism is similar to other organisms.
They see if the organism has the characteristics of an animal or plant.
They look at what makes the organism unique.
Answers
Answer:
All of the above
Explanation:
I believe all three are true. They see how the organism is similar to other organisms. They see if the organism has the characteristics of an animal or plant. They look at what makes the organism unique.
please help
I've finished all my other questions but I'm really stuck on these two
Answers
Answer: 66.66 / 66.67 / 66 2/3 hydrogen 33.33 / 33 1/3 oxogen
for question e
in grams of course
hydrogen: 33.33/33 1/3 oxogen
A student has a block of wood. She places it on a wooden desk. She uses a spring scale to measure how much force is needed to slide the block of wood across the desk. The student then places the block of wood on a piece of sandpaper and repeats the process. The type of force
the student is investigating is _______.
A. gravitational
B. magnetic
C. electricity
D. friction
Answers
Reason:because they are trying different types of things to rub against it and see if it will slow it down
Please give me the bran list answer !
What is true of a reaction that has reached equilibrium?
The reaction rates of the forward and reverse reactions are equal.
The rate of the forward reaction is greater than the rate of the reverse reaction.
The reaction rate is zero.
The rate of the forward reaction is less than the rate of the reverse reaction.
Answers
Answer:
The reaction rates of the forward and reverse reactions are equal.
Explanation:
I took the test and that was the answer. Hope this helps :)
Based off of the simulation pulley gizmo; how many people did it take to lift the armchair with a fixed pulley? (Look at Activity A question 2)
Question 5 options:
1
3
4
5
Answers
Answer:
IN WHICH GRADE YOU ARE????
***URGENT PLEASE**** Select all of the bases listed *
Bleach
NaOH
H2SO4
HCl
Ammonia
HF
Answers
Answer:
NaOH (a strong base)
Ammonia ( weak base )
Fill in the blanks:
An ___________ measures wind speed and a _________ shows wind direction.
A.weather balloon; electroscope
B.anemometer; wind vane
C.flask; beaker
D.oscilloscope; seismograph
It's science btw
Answers
Answer:
A.weather balloon; electroscope
Imagine that you are a leaf on a plant, and you realize that you are running low on supplies to do your job. You decide to text the roots to set up a delivery. Write a text message conversation between the leaf and the roots that discusses and arranges this delivery.
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Answer:
Leaf: Hey Roots, this is Leaf. I'm running low on supplies here. Can you send some over?
Roots: Hey Leaf, of course. What kind of supplies do you need?
Leaf: I need more water and nutrients. Can you send some my way?
Roots: Sure thing, we'll get on it right away. How much do you need?
Leaf: Just enough to keep me going for a few more days. Can you also send some sunlight my way?
Roots: Sorry, we can't help with that one. But we'll make sure to send enough water and nutrients to help you out.
Leaf: Thanks, Roots. You're the best. Let me know when the delivery is on its way.
Roots: Will do, Leaf. Hang in there. Delivery should be there soon.
Roots: Hi Leaf! Of course, we're here to help. Sorry to hear you're running low. We'll get right on it. How much water and which specific nutrients do you need?
Hope it helps! :)
Leaf: Thanks, Roots! I'll need a good soak of water, and I could use some extra nitrogen and potassium for optimal photosynthesis. Can you also throw in some magnesium?
Roots: Noted, Leaf. Water, nitrogen, potassium, and magnesium coming right up! We'll absorb them from the soil and deliver them through the xylem. Just hang in there!
Leaf: Awesome, Roots! Your support is much appreciated. Let's make sure this delivery boosts my chlorophyll production so I can keep producing energy for the whole plant.
Roots: Absolutely, Leaf! We're here to keep the whole plant thriving. Your health is our priority. We'll work together to ensure you have everything you need for top-notch photosynthesis.
Leaf: Thanks for being the best roots a leaf could ask for! Can't wait to feel rejuvenated and get back to making food for the plant.
Roots: You're welcome, Leaf! We're all part of the same team. Stay patient, the delivery will be on its way soon. We'll keep you updated.
Leaf: Will do, Roots! Looking forward to the delivery. Keep up the great work down there!
Roots: Thanks, Leaf! We'll keep the nutrients flowing. Take care up there and keep shining!
Leaf: You too, Roots! Catch you later!
Roots: Until next time, Leaf! Stay green and healthy!
The diagram above shows the repeating groups of atoms that make up two samples. Both samples are solids at room temperature. Will the other properties of the two samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)
{It's not 'C' according to my teacher}
Answers
Answer:Based on the diagram, the repeating groups of atoms in the two samples appear to be different. Therefore, it is likely that the other properties of the two samples will also be different. This is because the properties of a substance are determined by its chemical composition and molecular structure. Since the two samples have different repeating groups of atoms, their chemical compositions and molecular structures are likely to be different, leading to differences in their properties such as smell, color, and melting point.
Explanation:
Explain how Mendel used the F1 generation to conclude that genes are inherited.
Answer the Questionnn
science
Answers
Answer:
studied the generation to see there traits
Explanation:
1.) How do plant scientists hope to improve plant processes?
2.) How could you find out which resources are the most important for a plant to grow?
Answers
In particular, plants need nitrogen, phosphorus and potassium. When dissolved in water, these nutrients get absorbed by a plant's roots. If a plant can't get the nutrients it needs from the soil, fertilizer can help. Fertilizer provides plants with essential nutrients and helps them grow faster
7: How many times can a volcano erupt?
Answers
Answer:
Some small volcanoes only erupt once in their lives,
while other volcanoes erupt multiple times. Kilaeua volcano in Hawaii, which has been erupting continuously since 1983, is the world's most active volcano. While some volcanoes erupt at regular intervals, there are always exceptions to the rule
Answer:
small volcano's only 1 time while big volcano's mutiple times
Explanation:
In the formula shown, what is the total number of atoms present?
Answers
Answer:
your answer
24. hope helpful answer
We learned about three career opportunities in the field of pulp and paper in class. Pick one career and find out the education, training, and experience required for this profession. Write about what you found and explain why this profession might interest you
Answers
Answer:
Pulp and Paper technology is a specialist field of chemical engineering which involves the study of the processes required for the conversion of raw materials such as wood, into pulp and paper products.
Paper and pulp manufacturing is a growing and dynamic industry so it requires a wide variety of personnel - from unskilled and semi-skilled workers to tradesmen, technicians and engineers - to control all the processes and develop new ones.
I choose to be a chemist in the field of paper and pulp. Requirements and compulsory Subjects: Physical Sciences, Mathematics, Engiineering and Technology.
Chemists are responsible for quality control and they study the influence of various chemicals on pulp and paper. Chemical and mechanical engineers develop new production methods.
I'll like to be a chemist in the field of paper and pulp because they perform the major role in the chemical properties of the paper and pulp.
Explanation:
Hope it helps.
Answer:
PLATO ANSWER
Explanation:
Write equations to show the effect of heat on of the following:
1. Sodium hydrogen carbonate
2.Silver nitrate
3.Anhydrous iron (II) sulphate
Answers
Answer:
2: Silver nitrate Is answer.
The heat reacts with the reactants to undergo thermal decomposition. When sodium hydrogen carbonate undergoes thermal decomposition produces sodium carbonate along with carbon dioxide and water.
What is thermal decomposition?Thermal decomposition is a chemical reaction where the reactants under the presence of high temperature or heat get split to form two or more products. When Sodium hydrogen carbonate (sodium bicarbonate) is heated the reaction occurs as,
2 NaHCO₃ (s) + Δ → Na₂CO₃ (s) + CO₂ (g) + H₂O (l)
When Silver nitrate is treated with heat then silver, nitrogen dioxide, and oxygen are produced as,
2AgNO₃ (s) + Δ → 2Ag (s) + 2NO₂ (g) + O₂ (g)
Similarly, Anhydrous iron (II) sulfate under thermal decomposition produces ferric oxide, sulfur dioxide, and sulfite as,
2FeSO₄ (s) + Δ → Fe₂O₃ (s) + SO₂ (g) +SO₃ (g)
Therefore, the reactants under the heat show thermal decomposition.
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