Answers
Answer:
Which question?
Explanation:
Related Questions
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
In the following images, a blue circle represents an atom of one type of element, and a red square represents an atom of a second type of element. Determine which of them represent a pure substance, a homogenous mixture, and a heterogeneous mixture.
Are these in the right order?
Answers
Answer: No they are not. "Pure substance" is supposed to be placed in the middle picture. "Homogenous mixture" is supposed to be placed in the right picture. "Heterogenous mixture" is supposed to be placed in the left picture.
Explanation:
Pure Substances:
There are two categories of pure substances: elements and compounds (In our case, we have a compound).
Element (e.g. the blue circles or the red squares):
An element is a fundamental substance.An element cannot become simpler than itself, even if chemical separation methods are used.Compound (e.g. the blue circles bonded together with the red squares in the middle picture):
A compound is a substance made of two or more elements in fixed proportions (i.e. One element has the same amount as the other).A compound can be made into individual elements or simpler substances using chemical methods of separation.Mixtures:
There are two categories of mixtures: homo- and hetero- genous.
Homogenous mixture:
The substances or elements are mixed to look like one single substance and cannot be told apart (e.g. When salt dissolves in water, the water still looks like water).The substances or elements are distributed evenly throughout the apparatus. The number of different types of substances or elements can vary (e.g. There is more water than salt) The substances or elements do not bond together.Heterogenous mixture:
The substances or elements are mixed and can be told apart (e.g. When oil is mixed with water, the oil is "water-hating" so it forms its own layer on the bottom, while the water forms another layer on top of the oil layer).The substances or elements are distributed where one type of substance or element is bunched up in one spot and another substance or element in another spot.The number of different types of substances or elements can vary.The substances or elements do not bond togetherThe second Image is not a homogenous mixture, it is a heterogenous mixture as two different types of elements are mixed together.
The mix of two different types of elements in the heterogenous mixture is not uniform and has uneven mixed types.
The third image is a homogenous mixture as even though two different types of elements are together, they are not mixed with each other.
Unlike in the heterogenous mixture, in a homogenous mixture, there is a uniform mix of two different types of elements.
The first image is correct, the image depicts a pure substance.
To understand better about the Substances:
https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Foundations_of_Introductory_College_Chemistry/04%3A_Matter/3.5%3A_Pure_Substances_and_Mixtures
Rounded mass number for Boron
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Answer:
the atomic mass is 10.8 but is rounded to 11.
the atomic number is 5.
Explanation:
in water, what happens to a base?
It forms hydrogen ions (H+)
It condenses
It evaporates
It forms hydroxide ions (OH-)
Answers
Answer:
A base forms hydroxide ions in water.
Hope this helps
what are the first 3 rules that Newton made??
Answers
Answer:
Newton's Laws of Motion
Explanation:
1st- Inertia- every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.
2nd- The second law states that the greater the mass of an object, the more force it will take to accelerate the object
3rd- action reaction- If the forces are equal in opposite directions, the object will not move. The forces cancel each other out so that the acceleration is zero. If one force acting in one direction is greater than the force acting in the opposite direction, the object will move.
PLEASE HELPP FOR THE LIFE OF ME
The temperature of the areas surrounding Kochi before each storm was about 10°C and there was the same amount of water vapor in the air.
Given this information, which storm do you predict will have the most rainfall and why?
Answers
PLS HELP ME
ALSO THE LAST ONE IS STATE THE TREND IN DESNITY SHOWN IN TABLE
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I need help pleasee
6. Where on the graph does adding heat energy NOT raise the temperature?
What is the heat energy DOING if it's not raising the temperature?
7. What is temperature A called?
8. What is temperature B called?
Answers
Answer:
Explanation:
6. Where on the graph does adding heat energy NOT raise the temperature?
What is the heat energy DOING if it's not raising the temperature? :its being compressed I believe its vaporizing
7. What is temperature A called? Freezing
8. What is temperature B called? Vaporizing
The article states, "No matter what phase the Moon is in, one thing is the same: half of the Moon ______________.
Answers
Answer:
is covered in shadow/is dark
Explanation:
The moon will always have at least half of the moon covered, even if there is more than that. I you have a full moon, you are only being shown the face of the moon that is facing you, meaning the other side is covered by shadow, from there on the rest of the sequence is smaller than a full moon, but there will always be AT LEAST half the moon showing.
How is the momentum of an object determined?
What happens every time one of the boys playing ping pong hits the ball?
How could the boy playing ping pong keep from hitting the ball off the table?
I GIVE 20 PTS PLS HEELP
Answers
Answer: He needs to hit the ball with less force.
Explanation:
hope this helps
2. Based off the answer to the first question, by hitting the ping pong ball, momentum is transferred from the boy to the ball. Causing the ball to have more velocity/speed and gain more momentum.
3. Momentum before = momentum after
Every time the ball hits the table, some momentum transfers from the ball to the table. Every time the player hits the ball, some momentum transfers from the player to the ball. This allows the player to continue playing ping pong as the ball always has momentum.
During digestion, what happens in the stomach?
A. All food molecules are broken down into smaller molecules by chemical reactions.
B. Some types of food molecules are broken down into smaller molecules by chemical reactions.
C. Water in the food passes into the blood and travels to other organs where it is used.
D. Food passes into the blood and travels to other organs where it is used in various reactions.
Answers
Answer:
A
Explanation:
Food is digested in the stomach for several hours. During this time, a stomach enzyme called pepsin breaks down most of the protein in the food. The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones.
Answer:
A
Explanation:
Use the drop-down menus to complete the sentences.
The ___
supports and protects a plant cell. It gives the cell its rigid structure.
Turgor pressure helps the plant stand upright. It is caused by the movement of ___
into a plant cell.
Plants are composed of cells that contain nuclei, which make them ___
.
Plants make their own food using sunlight, which makes them ____
.
Answers
Answer: I don't understand the question.
Answer: The completed sentences of the Question are as follows:
The Cell-wall supports and protects a plant cell. It gives the cell its rigid structure.
Turgor pressure helps the plant stand upright. It is caused by the movement of water into a plant cell.
Plants are composed of cells that contain nuclei, which make them eukaryotic cells.
Plants make their own food using sunlight, which makes them autotrophs.
Explanation:
The cell wall is a rigid covering that protects the cell. It also provides structural support and gives shape to the cell.
Turgor pressure in plants is the force exerted by stored water on a cell wall. Turgor pressure is critical to the plant’s essential processes as it stiffens and rigidifies the plant cell and helps it stay upright.
Plant and animal cells are eukaryotic which means that they have nuclei. Eukaryotic cells are found in both plants and animals.
Plants are autotrophs, which means they produce their own food. The process by which they produce their own food by transforming water, sunlight, and carbon dioxide into oxygen and simple sugars is called Photosynthesis.
You can find more about Plant cells here:
https://brainly.com/question/21323201
Which word names melted rock and minerals found beneath Earth's crust?
A. lava
B. magma
C. rhyolite
D. gabbro
Answers
Will give 100 points!
An earthquake has a high magnitude but a low intensity. Which statement best explains this?
A. Magnitude measures the energy released by the earthquake, while intensity measures the amount of damage.
B. Magnitude measures the duration of the earthquake, while intensity measures the amount of damage.
C. Magnitude measures the duration of the earthquake, while intensity measures the energy released by the earthquake.
D. Magnitude measures the energy released by the earthquake, while intensity measures its duration.
The National Seismic Hazard Map classified one location as having the “highest hazard” and another location as having the “lowest hazard.” Based on this classification, which conclusion can you draw between the "highest hazard" and "lowest hazard" locations?
A. "Highest hazard" locations are better prepared for an earthquake than the "lowest hazard" locations.
B. There will never be an earthquake in the "lowest hazard" location in the future.
C. There will definitely be an earthquake in the "highest hazard" location.
D. There is more likely to be an earthquake in a "highest hazard" location than in a "lowest hazard" location.
How are P waves different from S waves?
A. P waves move under Earth’s surface, and S waves move along Earth’s surface.
B. P waves cause damage, and S waves do not cause damage.
C. P waves travel slowly, and S waves travel quickly.
D. P waves push and pull in the same direction as the wave, and S waves move up and down.
What does a seismograph record?
A. the distance from the epicenter of an earthquake
B. the vibrations produced by an earthquake
C. the amount of damage that results from an earthquake
D. the total amount of energy released by an earthquake
Answers
1. Magnitude measures the energy released by the earthquake, while intensity measures its duration. The correct option is A.
2. The conclusion you can draw between the two conditions is that there is more likely to be an earthquake in a "highest hazard" location than in a "lowest hazard" location and is denoted as option A.
3. P waves travel fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.
4. Seismographs are instruments used to record the motion of the ground during an earthquake. They are installed in the ground throughout the world and operated as part of a seismographic network.
does temperature stay the same when heat energy increases?
Answers
Answer:
More energy is required to raise its temperature. Therefore, temperature does not stay the same when heat energy increases.
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
Choose all the answers that apply.
Argon (Ar) is in group 18. Argon _____.
forms a salt when combined with a metal
has 18 electron shells
has properties similar to other elements in group 18
does not react readily with other elements
is part of the noble gas group
NEEDS TO BE ANSWERED ASAP
Answers
Argon (Ar) is in group 18. Argon is part of the noble gas group. Therefore, option D is correct.
What do you mean by noble gas ?The term noble gas is defined as any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. They are also called as inert gas element.
Noble gases, which are most commonly found as monatomic gases, have completely filled outer electron shells and thus have no desire to react with other elements, resulting in very few compounds.
Helium, neon, argon, krypton, xenon, and sometimes radon are examples of rare gases with high stability and extremely low reaction rates. Also known as inert gas.
Argon is called as noble gas element because they have completely filled their outermost shell.
Thus, option C is correct.
To learn more about noble gas, follow the link;
https://brainly.com/question/13715159
#SPJ2
When does a solar Eclipse happen, and how?
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Answer:
Solar Eclipse happens when the moon gets between the sun and the earth, the moon gets all the light and blocks the earth from getting sunlight.
Hope this helps ;) ❤❤❤
What is an ellipse please help)
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In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.
You have three drinks in front of you. You know how they were made, but are unsure
which one has the highest concentration of juice crystals. The first drink has 10 g of juice crystals dissolved in
50 mL of water. The second drink has 15 g of juice crystals dissolved in 100 mL of water. The third drink has 6 g
of juice crystals dissolved in 25 mL of water.
What was the most concentrated drink? How did you determine this since all three drinks had different
amounts of solvent?
Answers
Answer:
.
Explanation:
What would form a solution
Answers
Featured snippet from the web
A solution is made when one substance called the solute "dissolves" into another substance called the solvent. Dissolving is when the solute breaks up from a larger crystal of molecules into much smaller groups or individual molecules.
What needed to be present in marine mud to form fossil fuels?
Answers
Carbon and Hydrogen.
Answer:
Mostly decaying organisms are needed to present in marine mud to form fossil fuels.
Explanation: When organisms and plants died and sank to the bottom of swamps and oceans, brown soil-like materials called peat are formed. Over millions of years, the peat became covered with sand, clay and other minerals and the peat is converted into layers of sedimentary rocks. After a long time, different type of fossil fuels are formed.
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
5. Fill in the chart to identify three types of chemical changes.
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Answer:
1.reaction with energy 2. one substance breaks down 3. reaction to acid and base
An atom tries to have the same number of protons and electrons
(True) or (False)
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Answer: The correct answer is true, atoms have the same amount of protons and electrons
Answer:
True
Explanation:
An atom tries to have same number of protons and electrons is true answer
How might nutrients make their way from downstream to the upstream headwaters of the river?
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Answer: A stream carves its path through a watershed, eroding nutrients from the soil and rock, or taking them from plants.
Explanation: Because, those nutrients flow through different branches of the food web. They may stay in that watershed for a long time or they may leave.
Where is the DNA stored in a cell?
Answers
Answer: nucleus
Explanation:
HELP! 100 POINTS! A cinder block is pulled 0.50 meters to the right in 3 seconds. What is the block's average speed to the nearest hundredth of a meter per second (m/s)?
Answers
The average speed of the blocks are 0.36 m/S.
Explanation:
Average speed is defined as the ratio of distance covered per unit time. So if it is said that blocks are pulled to 0.9 m in the right side. This means the blocks cover a distance of 0.9 m from the origin and that distance is covered in 2.5 s. Thus, the average speed can be calculated from the change in speed
with respect to time. As at time t = 0, the speed is
also zero, and at time t = 2.5 s, the speed will be
Speed =
0.9 = 0.36
2.5
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.
2.5
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.
What are some strengths and limitations of the constellations
Answers
Answer:
Sorry but I don't know
Explanation:
Could you share a picture of what it looks like or what your supposed to base your answer on?
Answer:
Explanation:
yeeah much more ddifficult
The image shows the gravitational effects of the moon (not shown) on the Earth (depicted here) and the resulting tides that form. Which statements are true about the gravitational force between the Earth and the moon? Select ALL that apply.
Responses
A The moon exerts equal gravitational force on all locations of the Earth
B The moon exerts a smaller gravitational force on Earth locations that are farther away
C The moon must be to the right of the Earth because gravity is an attractive force.
D The moon must be to the left of the Earth because gravity is a repulsive force.
E The moon exerts a greater gravitational force on the Earth than the sun does.
Answers
Answer: B
Explanation:
Brainliest please! (if im right)