Answer:
bruh
Explanation:
Which pair of elements would be expected to have similar reactivities?
fluorine (F) and oxygen (O)
bromine (Br) and chlorine (Cl)
carbon (C) and copper (Cu)
sodium (Na) and sulfur (S)
Answer:bromine & chlorine
Explanation:
Elements with the same number of valence electrons have similar chemical properties. Since bromine and chlorine are in the same group (7A), both are expected to have similar reactivities.
Answer:
yes
Explanation:
no
Help? Tysm if you do :>
Using the graph above, what was the cost of the most expensive invasive species?
200 billion US dollars
10 billions US dollars
148 billion US dollars
50 billion US dollars
A warm ocean transfers heat to the air above it. Which type of heat transfer is this
Answer:
Conduction
Explanation:
Because When air is in contact with the ocean it is at a different temperature than the seas surface
Which type of selection is shown in the graph above?
A. Disruptive selection
B. Stabilizing selection
C. Disaster Selection
D. Directional selection
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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Q&A
Plant growth in response to heat
Plant growth is response to gravity
Plant growth in response to a stimulus
Human obtain electricity through fossil fuel, nuclear, solar, geothermal, wind, biomass, and hydroelectric power.
For at least two of these, explain ways that using this resource could pollute freshwater.
For fossil fuel: Oil spills and leaks during extraction or transport can pollute water sources.
For nuclear power: An uncontrolled nuclear reaction can result in widespread a contamination of water.
NEED ASAP!!!!
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SELECT ALL THE CORRECT ANSWERS.
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MULTIPLE CHOICE QUESTION!!!
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The graph gives information on greenhouse gas (GHG) emissions from industries. Which questions would help clarify the evidence from this graph?
A. What caused a drop in GHG emissions around 2009?
B. Did GHG get emissions cause the melting of arctic glaciers?
C. How much methane was emitted by homes between 1990 and 2000?
D. Does industrial equipment release gases other than greenhouse gases?
E. Which types of industries were included in the study?
Answer:
D. Does industrial equipment release gases other than greenhouse gases?
E. Which types of industries were included in the study?
Explanation:
Help me, no links, no i don't knows. reading science sheet
Answer:
Heat is a form of energy that moves from hot things to cold things. In other words, heat is energy that flows from objects with a high temperature. Temperature is the average kinetic energy of the particles in an object and is measured using a thermometer.
Heat can move from object to object in three ways. One way that heat flows is called conduction, which occurs when two objects are touching.
In conduction, the particles in the high temperature object are vibrating quickly compared to the low temperature object. When the particles in the high temperature object bump into the particles in the low temperature object, the low temperature object's particles begin to vibrate more quickly. Another form of heat transfer is convection, which occurs in liquids and gases. In convection, the part of the liquid or gas with high temperature is less dense than the part with low temperature so the high temperature parts rise and the low temperature parts sink.
In both conduction and convection, heat is transferred through a material. However, heat energy can also travel through empty space in a third way called radiation, which is how heat travels from the sun to the Earth.
PLS HELP ME
ALSO THE LAST ONE IS STATE THE TREND IN DESNITY SHOWN IN TABLE
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
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
Make a model that explains how the iron pipes and fertilizer changed into rust.
In the Before space, draw the iron pipes and fertilizer before they changed into rust.
In the After space, draw the rust.
In the During the change space, draw or describe how the iron pipes and fertilizer changed into rust.
Label your model or create a key.
Answer:
is c before space I did it
Explanation:
Match the following.
Drag the appropriate labels to their respective targets.
Answer:
oxygen - O2
chlorine- Cl2
neon- Ne
calcium- Ca
iodine- I
hydrogen- H2
Ne₂(g) - Neon gas (Ne)
I(s) - Iodine solid (I₂)
Ch(g) - Chlorine gas (Cl₂)
Ca(s) - Calcium solid (Ca)
O(g) - Oxygen gas (O₂)
H2(g) - Hydrogen gas (H₂)
Cl(s) - Chlorine solid (Cl₂)
O2(g) - Oxygen gas (O₂)
1. Ne₂(g) - This label represents the chemical formula for neon gas, which is Ne. Neon is a noble gas that is commonly used in neon signs due to its bright orange-red glow when an electric current is passed through it.
2. I(s) - This label represents the element iodine in its solid state. Iodine is a nonmetallic element that exists as a purple-black solid at room temperature.
3. Ch(g) - This label represents a gas called chlorine, which is chemically represented as Cl₂. Chlorine is a halogen gas that is used as a disinfectant and in the production of various chemicals.
4. Ca(s) - This label represents the element calcium in its solid state. Calcium is an alkaline earth metal that is commonly found in rocks, shells, and bones. It is essential for the proper functioning of our bodies and is also used in construction materials.
5. O(g) - This label represents oxygen gas, which is chemically represented as O₂. Oxygen is a colorless and odorless gas that is essential for respiration and the combustion of fuels.
6. H2(g) - This label represents hydrogen gas, which is chemically represented as H₂. Hydrogen is the lightest and most abundant element in the universe. It is used in various industries, such as the production of ammonia and petroleum refining.
8. Cl(s) - This label represents the element chlorine in its solid state. As mentioned earlier, chlorine is a halogen gas, so the correct label for chlorine in its solid state should be Cl₂(s).
9. O2(g) - This label represents oxygen gas, which is chemically represented as O₂. As mentioned earlier, oxygen is a colorless and odorless gas that is essential for respiration and the combustion of fuels.
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What are all the breeds of dogs and how many breeds of dogs are there?
Answer:
In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.
Explanation:
I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST WITH AN EXPLANATION THAT MAKES SENSE. Which of the following is NOT considered a result of global warming?
A. rise in sea levels
B. increase in fossil fuel emissions
C. increase in ocean temperatures
D. melting of glaciers and polar ice caps
Answer:
B. increase in fossil fuel emissions
Explanation:
The increase in fossil fuel emissions cause global warming, not the other way around
Answer:
Rise in Sea Levels
Explanation:
Global warming does not affect sea levels.
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?
Answer:
32 hours
Explanation:nc
A student makes a sandwich with several layers of bread and cheese. Then the student cuts the sandwich and says it models how a fault cuts through rock layers after the rock layers formed. Explain how the example of the sandwich relates to relative dating.
Answer:
Rock layer and sandwich layer is almost the same.
Why are rock layers are like sandwiches?
This geologic structure is called an anticline. Now gently bend your sandwich so that the layers are bowed downwards, thus creating a syncline. The presence of anticlines and synclines indicate strong forces that often form mountain ranges.
A student makes a sandwich with several layers of bread and cheese. Then the student cuts the sandwich and says it models how a fault cuts through rock layers after the rock layers formed. This example of the sandwich relates to relative dating where a geologist interprets how the earth was made by interpreting which rock layer and geological processes came first, second & third.
What is Relative Dating?Relative dating in geology is the method for determining the approximate age of a structure based on its physical relationship to surrounding geologic structures.
This is a qualitative process of determining the sequence of events. With an understanding of rock formation, geologists can sequence structures to determine the order of events and relative age.
Rock layers are formed first in flat layers. Therefore, if they're are tilted because it got squished, then the tilting came after it was laid down.The oldest layer is on the bottom and the youngest layer is on top.If the layers are cut by a fault, the cut is the youngest process.If the layers are cut or filled, from an igneous intrusion, the igneous intrusion is the youngest process.Therefore, A student makes a sandwich with several layers of bread and cheese. Then the student cuts the sandwich and says it models how a fault cuts through rock layers after the rock layers formed. This example of the sandwich relates to relative dating where a geologist interprets how the earth was made by interpreting which rock layer and geological processes came first, second & third.
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HELP PLLZZZ
A rock that is exposed to heating and cooling over and over again will eventually crack and break into smaller pieces. This is an example of what type of mechanical weathering?
A. Abrasion
B. acid rain
C. ice wedging
D. biological weathering
Answer:
Abrasion
Explanation:
Here's an example, strong winds on a beach where some rocks are cause the sand to rub against the rocks, causing heat and eventually crack and destroy the rock. The ice of glaciers can also break down rocks when rocks are frozen inside it, and that's cooling.
Balance the following reaction CS2+Cl2. CCl4+S2Cl2
Answer:
CS₂ + 3Cl₂ ⇒ CCl₄ + S₂Cl₂
Explanation:
This one is relatively simple. When we take inventory of both sides, we see 1 Carbon, 2 Sulfurs, and 2 Chlorines on the reactant side, and 1 Carbon, 2 Sulfurs, and 6 Chlorines on the product side. Since we have Cl₂ on the left and we want 6 on the left, let's add a coefficient of 3 to Cl₂. This balances everything out! Final answer: CS₂ + 3Cl₂ ⇒ CCl₄ + S₂Cl₂. Hope this helps!
what processes break down and build up Earth's surfaces?
HEEEELP!!! THIS IS DUE TODAY
What is one of the most important forms of energy? Give two examples of how this type of energy is used in our lives.
Answer:
"There is no God but Allah, and Muhammad is his messenger." This is the basic statement of the Islamic faith: anyone who cannot recite this wholeheartedly is not a Muslim. When a Muslim recites this they proclaim: That Allah is the only God, and that Muhammad is his prophet.
I hope u find the right path
Explanation:
which of these objects in the solar system have impact craters.
The Moon
Earth
Mars
Answer: The moon
Explanation: hope this helps.
the moon because it's the closest
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
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.
Explain how low atmospheric oxygen levels affected alligator growth in terms of cellular respiration.
Answer:
Hyperbolic alligators exhibited the lowest breathing rate and highest oxygen consumption per breath. We suggest that, despite compensatory cardiopulmonary remodeling, growth of hypnotic alligators is constrained by low atmospheric oxygen supply, which may limit their food utilization capacity.
Explanation:
Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Therefore, low atmospheric oxygen levels affected alligator growth in terms of cellular respiration.
What is element?Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.
The oxygen dissolved in sea water is used by marine animals in breathing. Hyperbolic alligators exhibited the lowest breathing rate and highest oxygen consumption per breath. Low atmospheric oxygen levels affected alligator growth in terms of cellular respiration.
Therefore, low atmospheric oxygen levels affected alligator growth in terms of cellular respiration.
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Quartz, or silicon dioxide (SiO2), is one of the most abundant minerals on Earth. The diagram shows the atomic arrangement of quartz.
Based on the diagram, which statement best describes the atomic arrangement of quartz?
Group of answer choices
An extended structure that is made of repeating patterns of atoms.
A repeating pattern of small molecules that can move freely past each other
Many different kinds of molecules tha combine to form an extended structure.
Many different kinds of atoms that can move freely past each other.
Based on the atomic arrangement of quartz, it is can be concluded that quartz is an extended structure that is made of repeating patterns of atoms.
What is quartz?Quartz is a hard crystalline mineral found within the Earth's crust and which is composed mainly of the mineral silica. Silica is mostly silicon(iv) oxide.
Quartz is colourless and its crystalline structure is of a hexagonal prism. The atoms are arranged in a regular repeating grid to form the hexagonal crystal.
Therefore, it is can be concluded that quartz is an extended structure that is made of repeating patterns of atoms.
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WILL GIVE BRALLY!!!
Which activity will most likely increase the formation of humus in soil?
A.
a tree is cut for lumber
B.
a tree dies and decomposes
C.
plastic is buried in the ground
D.
all worms are removed from the soil
Answer:c
Explanation:im not sure plz do not get it
Do you think rayon when burnt will stick to the body like other synthetic fibers?
There are 2 main types of _______. One is a _______, where electrons are shared between atoms. The other is an _______, where one atom loses an electron to become a _______ charged ion, and the other atom gains the elctron to become a _________ charged ion.
Hello..!
There are 2 main types of ions one is an atom where the electrons are shared between the atoms. the other is an electron where one atom loses an electron to become a neutral in a charged ion, and the other atom gains the electron to become a charged lon anion.
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Ions with a positive charge are known as cations. Those that are negatively charged are called anions.
¿Doubts? in the comments Greetings.
The two main types of bonds formed between atoms are ionic bonds and covalent bonds. An ionic bond is formed when one atom accepts or donates one or more of its valence electrons to another atom. A covalent bond is formed when atoms share valence electrons.
How can a chemical reaction be sped up?
Select from the drop-down menu to correctly complete the statement.
Pack in more of the reactant to increase the
A.) Catalyst
B.) Concentration
C.) Surface Area
D.) Temperature
.
Answer: the answer would be A) Catalyst because it can help speed up the chemical reaction
Explanation: the answer would be A) Catalyst because it can help speed up the chemical reaction. Hopes this helps :)
help pls i will give brainlest
Answer: its 5ft tall and 12 inches
Explanation: