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What observable properties are when you mix salt and sugar?
Answers
Answer:
The visible properties is you would see the salt and sugar dissolve in the water, which is called a homogeneous mixture. This mixture cannot be filtered and is transparent mostly (uniform composition).
Explanation:
Related Questions
Who would most likely need thermal clothing?
A. a tourist on a tropical beach
B. an explorer at the South Pole
C. a dancer performing in a classical ballet
D. a woman attending a religious service
Answers
Answer:
B
Explanation:
Thermal clothing is something you wear under your regular clothing. It prevents you from getting chilly.
A is incorrect because usually a beach is warm and not really that cold. So, you would not need warm clothes.
C is incorrect because a dancer would not be most likely in need for thermal clothing. They would be okay.
D is incorrect because the woman is in a room and not it such a cold room that she would need really warm clothing.
Hope you have a great day;)
what does chemlcal change mean
Answers
Answer:
a chemical change is a change that changes the substance into a whole new substance.
Examples include: burning wood, a banana peel rotting, milk souring, and even your food/drinks digesting.
Create a 10 question test to acess the improrant topics on deposition, weathering and erosion. you may use multi choice, open ended questions, and fill in the blanks. Put the answers in the question as a resourse to help you.
Answers
Answer:
What is deposition?How does acid rain erode rocks?Fill in the blanks: The very strong _______ would burn if they contacted the skin and can also destroy ______, but _______ rain is much weaker and could never burn the skin.What is the cause of acid rain?Acid rain is rain that is usually _______What is the most important source of acid rain?What can rocks exposed to acid rain do?Explain the difference between weathering and erosion?What can deposition create?State some types of erosion?Explanation:
Deposition was the opposite of sublimation.It infiltrates the cracks below the groundThe very strong acids would burn if they contacted the skin and can also destroy metals, but acid rain is much weaker and could never burn the skin.Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air.acidicvolcanoesPoison ecosystemsWhen the smaller rock pieces (now pebbles, sand or soil) are moved by these natural forces, it is called erosion. So, if a rock is changed or broken but stays where it is, it is called weathering. Deposition creates many types of landforms on earth. Gravity and weight create rockslides on the sides of hills and mountains, depositing rocks at the bottom.It consists of different types like water, wind, ice, thermal and gravity erosionWhich of the following is the overall goal of all territorial behavior?
Responses
A. to maintain access to a particular type of environment
B. to impress mates in order to reproduce
c. to gain resources to increase success
d. to defend food sources for personal use
Answers
To defend food sources for personal use
Have a good day Brainlist pls
Use the drop-down menus to select the names of the labeled structures.
A: B: C:
Answers
Answer:
A: petal
B:stigma
c: stamen
Explanation:
A flower is considered as a complete one if it has petals, stamen, carpel and sepals. Sometimes pistil is present. Here in the structure part A is Petal, B is Stigma and C is stamen.
What are parts of a flower?The calyx, corolla, androecium, and gynoecium are found to be the four whorls of a modified leaves which constitute the flower. One of the flower parts in each of the whorl contains sepals, petals, stamens and pistils.
Here A is petal. This part is the bright coloured region which attracts bees and birds. This part help us to differentiate one flower from another. Some petals are dark coloured whereas some other are pale coloured.
Here B is stigma. The stigma is the sticky part of a flower. It is the specially adapted portion of the pistil modified for the reception of pollen. It has a feathery, branched elongated structure.
Here C is stamen - The male reproductive part of a flower is called the stamen. The stamen has long slender stalk called the filament with a two -lobed anther at the tip.
Thus the given parts are petal, stigma and stamen.
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A small gap is left between the rails in the railway track. Analyze the reason.
Answers
Answer:
There could be several possible reasons for a small gap between rails on a railway track, such as:
1. Expansion joints: Railways are designed to allow the tracks to expand and contract with changes in temperature. To accommodate this expansion, small gaps are left between the rail ends and filled with expansion joints or plates.
2. Wear and tear: Over time, the rails may experience wear and tear due to heavy loads, weather conditions, and other factors. As a result, small gaps can appear between the rails.
3. Maintenance: During maintenance activities, rail tracks may be adjusted or replaced, which could lead to small gaps between the rails.
4. Environmental factors: Environmental factors such as soil shifts, earthquakes or other natural disasters can also affect the alignment of the rails, leading to small gaps.
These are some of the possible reasons for a small gap between the rails on a railway track.
Answer:
The small gap left between the rails in a railway track is intentional and serves a specific purpose. This gap is known as the rail joint, and it allows for the expansion and contraction of the rails due to changes in temperature. When the temperature changes, the metal rails will expand or contract, and if they were joined together tightly, they could buckle or become deformed, which could be dangerous for trains passing over them. The rail joint allows the rails to move slightly and prevent damage to the track.
Additionally, the rail joint also allows for maintenance and repairs of the track. If there were no gap between the rails, it would be challenging to replace a damaged rail or perform routine maintenance, such as tightening bolts or lubricating joints. With the rail joint, maintenance personnel can easily access and work on the track.
Overall, the small gap left between the rails in a railway track is intentional and serves a crucial function in ensuring the safety and reliability of the track.
question #5: corals are sensitive to temperature . if temperatures are raised , it will cause the coral to bleach . what does bleach mean ? And can corals recover ?
Answers
Answer:
It means the coral will turn white and corals may recover (depending on the species) by soaking up ocean surface heat.
I AM ON A TIMER BE QUICK!! Which material would result in the greatest amount of energy transfer?
A. An absorber that is dark in color and rough.
B. A reflector that is dark in color and smooth.
C. An absorber that is light in color and rough.
D. A reflector that is light in color and smooth.
Answers
Answer:
A. An absorber that is dark in color and rough
Hello, could you help me to answer this question. Thank you very much, it would save me!
Answer the question, "Why is it best to put subscripts next to the symbols in the density and solubility formulas?"
Answers
The number of atoms of each kind is indicated by a subscript following the atom. If there is only one atom, no number is written. If there is more than one atom of a specific kind, the number is written as a subscript following the atom.
Which food combination produces a protein complete meal?
white rice and broccoli
brown rice and beans
white bread and cheese
peanut butter and jelly
Answers
Answer:
brown rice and beans
Explanation:
because the rice is really filling and healthy while beans have proteins
Answer:
the second option
Explanation:
hope this helps
Do you think rayon when burnt will stick to the body like other synthetic fibers?
Answers
PLS HELP DONT GOGGLE!!
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The area where the land meets the sea is called the coastline. This area can have different physical features depending on its location. Some common features of coastlines are beaches, cliffs, bays, harbors, estuaries, and dunes. Beaches are made up of loose particles like sand and gravel that are deposited by the sea.
In some areas, the shoreline may consist of a wide, sandy beach, while in others it may be rocky and steep.
In general, the shoreline is where the land transitions to the sea, and it is often marked by the presence of waves, tides, and other oceanic phenomena.
You may think of changes in climate occurring as you go north or south. This climber stayed at the same latitude and went up. What explains the difference in temperature and climate between the top and bottom of Mt. Kilimanjaro? Please explain in 3-5 sentences thank you for 81 points
Answers
Answer: I'm not really sure but I think its dew to the different heights and tempura going up and down and the flow of wind.
Explanation:
Answer:
Mountains make it possible for snow to be found at the equator. Why does the temperature become colder the higher up a Mountain? Generally the climate on mountains get progressively colder with increased altitude (the higher up you go).
Explanation:
Research gestation and mating. Find out three other mammals' gestation periods and mating rituals. How long is the gestation period, how do the mates court each other, and do they mate for life? What are some other interesting facts? Choose any three mammals you are interested in and use any sources you like. Write a three-paragraph essay comparing the gestation period of the three animals.
For an extra challenge, see if you can find out if any mammal has a shorter gestation period than mice or a longer one than Asian elephants.
Answers
Answer:
hold on i will help you soon
The period of time when sexual intercourse takes place between two organisms is called mating. However, all the matings need not end in fertilization.
The gestation period is a time when the embryo develops completely into a fetus. This is usually from the time of fertilization to the time of giving birth.
Let us take the comparison of the gestation period of 3 mammals.
The gestation period of a cow varies from 279- 287 days. The mating between the bull and cow occurs during the heat or oestrus period of the cow. At that time the bull mounts on the cow or vice-versa may happen during the mating period. This is termed bulling.
In the case of horses, the gestation period is 320-380days. The mating ritual in a horse is a bit different than in a cow. It usually has three phases of sexual behavior which includes: courtship, mating, and post mating behavior. During courtship, the stallion which is the male horse will approach the mare, prance, sniff her, nuzzle her, and groom her. The mare which is the female horse may squeal, kick, or move away to show the stallion that she is not ready. When the mare is receptive to breeding, she may stand still, deviate her tail, and urinate, leading the stallion to mount her. It usually breeds well in pastures than in controlled environmental breeding conditions.
Whereas in camels, the gestation period is far longer than in cows and horses. It is about 360-440days. The male camel displays its organ called a dulla to show out is ready for mating. The male camel Urinates on its own tail and swishes it over its back so that the Urine contains female-attracting pheromones. It shows distinct violent behavior towards other male camels. The female camel undergoes an estrous cycle in the breeding season which lasts receptive for 3-4 days, and non-receptive following the other 10 days. In the receptive period, the camel sits down and exposes its genitalia for the male camel to copulate. The whole mating takes about 20 minutes and is accompanied by gurgling and frothing by the male and bleating by the females.
It should be noted that African elephants have longer gestation periods like Asian elephants whereas no other animal has a longer gestation period than an elephant or a shorter gestation period than mice.
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Develop models bonds can be placed on a scale that ranges from 100% ionic to 100% covalent. Use what you know about the types of bonds that specific elements tend to form to place each of the following compounds in the correct location on the scale: CO2, N2 , NaF, H2O
Answers
Answer:
Bonds can be placed on a scale that ranges from 100% ionic to 100% covalent.
CO2: CO2 is a covalent compound, with each carbon atom sharing electrons with two oxygen atoms. Therefore, it can be placed closer to the 100% covalent end of the scale.
N2: N2 is a covalent compound, with each nitrogen atom sharing electrons with another nitrogen atom. Therefore, it can be placed closer to the 100% covalent end of the scale.
NaF: NaF is an ionic compound, consisting of a sodium cation (Na+) and a fluoride anion (F-). Therefore, it can be placed closer to the 100% ionic end of the scale.
H2O: H2O is a polar covalent compound, with the hydrogen atoms sharing electrons with the oxygen atom, but the electrons are not shared equally, therefore the oxygen atom has a partial negative charge and hydrogen atoms have a partial positive charge. Therefore, it can be placed closer to the middle of the scale, between ionic and covalent.
Overall, the scale can be represented as follows:
100% Ionic <-------> NaF <-------> H2O <-------> CO2 <-------> N2 <-------> 100% Covalent
A theory usually has observation and reasoning in its favor, although it may not be experimentally verified.
True or False
Answers
The speed at which a nitrogen molecule’s particles are moving increases. What will happen to the thermal energy of this molecule?
A) The thermal energy of the molecule will increase.
B) The thermal energy of the molecule will not change, but its mass will change.
C) The thermal energy of the molecule will not change, and its mass will remain the same.
D) The thermal energy of the molecule will decrease.
Answers
Answer
The thermal energy of the molecule will increase.
Explanation:
Increasing the speed at which the particles are moving cause atoms and molecules to move faster and collide with each other. This increases the thermal energy.
A ball rolling west at 5cm/s. The is an example of
Answers
Answer:
0.911
Explanation:
5cm minus the Amout of West kilometers It's 0.911 because of the 5-5 (5) equald west
Science questions answer to get 20 points
Answers
Answer: (Q1) B. (Q2) D. (Q3) B. I believe (Q4) C.
Explanation: (Q3) B the medulla isn't playing a physical part in digestion as much as it controls the process this is a educated guess
What type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom?
Answers
The type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom is hydrogen spectrum.
What is hydrogen spectrum?The hydrogen spectrum is given by the scientist Bohr and it consist of series name lyman, balmer, paschen, bracklet and p- fund as the electromagnetic radiations splits into this.
The lyman series is formed when electrons jumps from any hige energy level to n = 1 and will be same for balmer , pachen ,bracklet and p-fund are obtained when electrons jumps from any higher energy level to n = 2,3,4 and 5 respectively.
Therefore, type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom is hydrogen spectrum.
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i need help with this
Answers
PLEASE HELP ME! I'll GIVE BRAINLIEST!
Answers
Answer:
Ice cubes melting is an example of the temperature of the environment being warmer than the ice cubes. Because of this, the ice gets heat energy from the air and therfore has enough energy to break into liquid.
Explanation:
Lemme know if you need more explanation!!
Answer:
The process to this is melting.
Explanation:
Due to the temperature of heating, it will melt, which will cause the solid, to a liquid.
I really hope this answers your question!
Why is Gas Considered Carbon dioxied? (first to answer gets 100 points and brainliest
Answers
Answer:
Explanation:
Carbon dioxide is a chemical compound that consists of two oxygen atoms and one carbon atom. … Carbon Dioxide (CO2) is a gas with a molecular structure composed of two oxygen atoms and one carbon atom. It is an important greenhouse gas because of its ability to absorb infrared wavelengths.
Answer:
carbon dioxide is a colorless and nonflammable gas at normal temperature and pressure.
A substance is _____. This means it can be pulled or drawn into a wire.
A. malleable
B. ductile
C. conductive
D. corrosive
Answers
Answer:
B. ductile
Explanation:
your welcome
Answer:
Ductile
Explanation:
A. Malleable - (of a metal or other material) able to be hammered or pressed permanently out of shape without breaking or cracking.
B. (of a metal) able to be drawn out into a thin wire.
C. having the property of conducting something (especially heat or electricity).
D. tending to cause corrosion.
Which type of selection is shown in the graph above?
A. Disruptive selection
B. Stabilizing selection
C. Disaster Selection
D. Directional selection
Answers
In the given graph, the Evolved Population is showing disruptive selection. Hence, the correct option is A. Disruptive selection.
Stabilizing selection is a form of natural selection where individuals with average phenotypes are more likely to survive and reproduce their number. In this selection, the population tends to maintain a stable phenotype. As shown in the graph, the population is maximum for the population having a moderate length of neck.
Disruptive selection is a type of natural selection where extreme phenotypes are preferred over average phenotypes, leading to an increase in genetic variation and the population becoming more diverse. In this type of selection, the population diverges into two or more distinct phenotypic groups. As shown in the graph, two ranges of the population are favored for having traits for extreme lengths of the neck.
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How does the speed of a sound wave change based on the density of the medium the wave passes through?
a. In a denser medium, the sound wave will speed up and then slow down.
b. In a denser medium, the sound wave will travel slower.
c. In a denser medium, the sound wave will travel faster.
d. Density does not affect how fast a sound wave will travel.
Answers
In this activity, you will investigate how the motion of objects of different masses is affected when the same force is applied to them. You will use the scientific method to set up your experiment. Question__________________________________.
Answers
Answer:if a bot walks up to you what do you do
Explanation:
you slap the F out of them
I just need help all I need is the answer please some one
Answers
Answer: The correct fill-in-the-blank answers are:
1. through binary fission (already filled in)
2. be resistant to penicillin
3. through asexual reproduction.
4. cell replicates before
5. a simpler process
Explanation:
The correct fill-in-the-blank answers are:
1. Bacteria reproduce through binary fission (already filled in)
2. A parent bacterial cell is able to survive in the presence of antibiotic penicillin. Subsequent generations from this parent will be resistant to penicillin
3. Something that potatoes and bacteria have in common is that they both reproduce through asexual reproduction.
4. In asexual reproduction DNA from the parent cell replicates before it produces daughter cells.
5. Asexual reproduction is a simpler process than sexual reproduction.
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Is Melting chalk in vinegar a Physical or Chemical change, and how is it.
Answers
Answer:
It is a chemical change because putting the chalk in the vinegar starts the chemical reaction as the acid starts to dissolve the calcium carbonate.
PLEASE GIVE BRAINLIEST
Answer:
Chemical change
Explanation:
Chalk is a sedimentary rock made of calcium carbonate. Chalk immediately begins to dissolve when it comes in contact with an acid like vinegar. In contrast, the chalk that is in water has no such reaction.
Rocks that contain calcium carbonate can erode when they come in contact with acids, and chalk contains calcium carbonate. Vinegar is acetic acid, and chalk is a base. An acid plus a base causes a chemical reaction. So, vinegar combined with chalk creates a chemical reaction.
Hope it helped!
How can chemical energy be converted into mechanical energy?
A. turning on a flashlight
B. sharpening a pencil with an electric pencil sharpener
C. heating up bread in a toaster
D. eating breakfast and then going for a run
Answers
eating breakfast and then going for a run
Answer: D. Eating breakfast and then going for a run.
Explanation:
Eating breakfast is a chemical change and running is a mechanical change.