Answer:
5.0 molatrity
Explanation:
because i just known
Answer:
Approximately 1.61
Explanation:
Molarity = Moles/Liters
Molariry = 3.7 moles NaCl / 2.3L
Molariry = 1.61
100 POINTS+BRAINLIEST: How exactly do chlorofluorocarbons harm the ozone layer?
Answer:Gaseous CFCs can deplete the ozone layer when they rise due to ultraviolet radiation
Explanation:
Answer:
when chlorofloroucarbon drift upwards toward the stratospher ,they come in contact with the ozone layer .this leads to a chemical reaction where the cfcs the molecules are broken up by ultra violent radiation releasing chlorine atoms which are able to destroy ozone molecules
(1.) If at 100.0 mL solution contains 0.850 moles of a solute, what is the molarity ?
(2.) If the molarity of a solution is 12 M and the volume of the solution is 1.0 L, how many moles of solute does the solution contain ?
Answer:
See below
Explanation:
1) Moles / volume
.85 mole / .1 liter = 8.5 M
2) 12 moles are contained in one liter
Use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.
pls make it simple and not write a whole paragraph
Answer:
Explanation:
The mass of hydrogen is conserved during cellular respiration as it follows the Law of Conservation of Matter.
Answer:
the law of conservation of matter
Explanation:
The mass of hydrogen is conserved during cellular respiration as it follows the Law of Conservation of Matter.
The Law of Conservation of Matter states that the reactants must equal the products, which is demonstrated through the equation that demonstrates cellular respiration.
C6H12O6 + 6O2 -> 6CO2 + 6H20
This shows that hydrogen has been conserved throughout the entire process (H representing Hydrogen) as the product has the same amount of hydrogen as the reactants.
If a substance has a density of 19 g/cm3, then what is the mass of 8 cm3 of this substance?
How do you make an atom model? PLEASE HELP ANY IDEAS GUYS?
Answer:
If you are looking for like a drawing say less.
List the three subatomic particles. Give the relative masses and charges of each.Identify the type of bond(s) present in each of the following substances:
NaCl
C2H6
MgO
Ag6
N2O4
F2
Fe5
CO2
Answer:
The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.
relative charge = -1
Relative mass = 1.1836
It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.
He constructed the glass tube and create vacuum in it. He applied electric current between electrodes. He noticed that a ray of particles coming from cathode to wards positively charged anode. This ray was cathode ray.
Properties of cathode ray:
The ray is travel in straight line.
The cathode ray is independent of composition of cathode.
When electric field is applied cathode ray is deflected towards the positively charged plate.
Hence it was consist of negatively charged particles.
While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.
Relative mass of proton= 1
Relative mass of neutron = 1
Relative mass of proton = +1
Relative charge of neutron = 0
The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons. The umber of protons and electrons are always equal to make the atom electrically neutral.
Explanation:
How are cellular respiration and photosynthesis different? (4 points)
Cellular respiration assists breathing; photosynthesis aids pigmentation.
Cellular respiration breaks down glucose; photosynthesis creates glucose.
Cellular respiration creates glucose; photosynthesis breaks down glucose.
Cellular respiration releases oxygen; photosynthesis releases carbon dioxide.
Answer:
B. Cellular respiration breaks down glucose; photosynthesis creates glucose.
Explanation:
How can you describe a mineral that has a measure of 1 on the hardness scale, looks dull, and breaks into square chunks?
A. It is soft, metallic, and has cleavage.
B. It is hard, non-metallic, and has cleavage.
C. It is hard, metallic, and does not have cleavage.
D. It is soft, non-metallic, and does not have cleavage.
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
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.
please help
I've finished all my other questions but I'm really stuck on these two
Answer: 66.66 / 66.67 / 66 2/3 hydrogen 33.33 / 33 1/3 oxogen
for question e
in grams of course
What is causing the increasing amount of CO2 in the atmosphere? What could be done about it?
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
1. print fossil
2. carbonized fossil
3. petrified fossil
4. cleavage
5. landform
6. igneous
7. metamorphic
8. print fossil
9. geology
10. sedimentary
\(\)
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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so like i need help pls!!!!!!!!!
Answer: pretty sure it is number 2
Explanation: sorry if i am wrong.
What are the reactants in this chemical reaction?
Remember: Reactants are what react together to form products.
A) Sodium Sulfite and Hydrochloric Acid
B) Water and Sulfur Dioxide
C) Hydrochloric Acid and Sulfur Dioxide
D) Sodium Chloride and Water
Answer: a
Explanation: because, as we know reactants are what react to form a product. In the chemical reaction given, if you add sodium sulfite and hydrochloric acid it will form sodium chloride + water + sulfite dioxide.
Answer:The answer is A
Substance A and substance B combine to form substance C. Three illustrations of 3-D atomic structures of substances: substance A, substance B, and substance C. Substance A and B combine to form substance C. Ask your teacher to describe the illustrations to you. What is substance C? an atom a mixture an element a compound
c is a compound
Explanation:
because it is made up of element a and b
Explain what happens to the amplitude of a wave when the energy to produce it is increased. in easy words
HELP ASAP PLZ I WILL MAKE YOU BRAINLIST IF YOU ANSWER RIGHT
Answer:
The amplitude of a wave is related to the amount of energy it carries.
Explanation:
Potassium (K) is found in Group 1. Fluorine (F) is found in Group 17. When these atoms bind, which will form the positive ion, and which will form the negative ion? Why? Hint: Refer back to the periodic table.
Answer:
The oppositely charged ions form an electrostatic attraction, which is the ionic bond. The compound potassium fluoride (KF) results, and since the potassium and fluoride ions have equal but opposite charges, the compound is neutral (but not the individual ions in the compound).
Explanation:
hope this helps i dont know if it will
PLZ help and fast
Compare your responses when you were warned and when you were not warned.
Decide if any of your reactions were reflex responses, and explain your answer.
Infer why organisms have reflex responses to some stimuli.
Answer:
Explanation:
It can possibly be because of genetics in me. For instance: I love dark chocolate, and every time I eat some, it can activate the same photic sneeze reflex as the sun.
When energy from the Sun reaches the air above land, the air warms and rises. Along a coastline, cooler air above the ocean flows toward the land to replace this rising air. Which of the following best describes these processes?
A. Conduction and Convection
B. Radiation and Convection
C. Conduction and Radiation
PLEASE HELP I WILL MARK BRAINLIEST!!!
How much power is indicated by each example?
Answer:
The first is five and the second is ten
Explanation:
3.How are climate and weather different?
4.How can you depict annual precipitation at a site location, like a local airport?
5. What is the transformation of water vapor to liquid water droplets in the air?
Climate is different from the weather. Climate is the long term weather condition and weather is short term atmospheric condition. The annual precipitation is report is depicted as graphical data. Transformation of water vapor to liquid droplets in air is called condensation.
What is climate?Climate in a region is the long term weather exists there and which will be characteristic for that region. Weather is forecasted for a day or a particular time, reporting the short term atmospheric condition. Climate of a locality depends on the landscape there, local winds etc.
The annual precipitation report determined by the summation of monthly precipitation data and which in turn obtained by the summation daily precipitation for each month and it is depicted graphically to analyse.
The transformation of water vapor to liquid droplets in the air is called condensation. The gaseous molecules of the water vapor condense together to form the liquid droplets.
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A praying mantis eats a bee.
Tell which type of relationship it is: mutualism, predation, parasitism, competition, or commensalism. Give details on why.
Try for 2 sentences:
I think a praying mantis eating a bee is an example of....
I think this because...
Answer:
I think a praying mantis eating a bee is an example of predation. I think this because the praying mantis stealthily hunts its preys, like the bee, in order to kill eat for food.
Explanation:
"Predation" refers to the killing of another living organism in order to prolong the life of the "predator" (hunter) and to end the reproductive life of the "prey" (the one being consumed). The praying mantis is popularly known for being a deadly predator because it feeds on several insects (as its prey), including the bees. They are said to also feed on wasps, moths, mice, frogs, rodents and even snakes.
It kills the bees in order to consume them so it can prolong its reproductive life. It then stops the reproductive life of the bees. Clearly, the type of relationship here is "predation."
I think a praying mantis eating a bee is an example of predation.
I think this is because the praying mantis which is a predator consume the prey which is the bee most times in a defensive manner.
Predation is a biological relationship in which a predator kills or consume it's prey.
It's occur majorly in canivorous animals that consume flesh or other animals.
The predators consume the prey as food and as a form of defensive means from been attacked by the prey.
In this relationship, energy is transfered from the prey which is the bee to the praying mantis.
Therefore, the relationship that occur between praying mantis and bee is predation.
Which set of coefficients will balance this chemical equation? HELP QUICKLY PLEASE
__C2H4 + __O2 → 2CO2 + 2H2O
A. 1, 2
B. 1, 3
C. 2, 3
D. 2, 5
I will gladly give a BRAINLIEST for a CORRECT, EXPLAINED answer!!
To know the number of atoms of an element in any compound or molecule we have to multiply the coefficients that is written in front of the molecule to the number that is written on the foot of that element. So the correct option is option B
What is Balanced equation?Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side
The number of carbon atoms on reactant side is 2 while on the product side it is 2
The number of Hydrogen atom on reactant side is 4 while on the product side it is also 4
The number of oxygen atom on reactant side is 1 while on the product side it is 6, so to balance oxygen we multiply O₂ by 3 so the balanced equation is
C₂H₄+3O₂\(\rightarrow\)2CO₂+2H₂O
Thus the balanced equation is C₂H₄+3O₂\(\rightarrow\)2CO₂+2H₂O. Option B is correct option
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Please help me por favor :'(
Explain how thinking about chemicals at the atomic and molecular scale can help to explain observable phenomena, such as the changes you see when you etch copper.
Not a straight up answer, but moreover to help you get it: (Circuit Boards)
Aside from the tasks it performs, perhaps the most important function of a circuit board is providing a way to integrate the electronics for a device in a compact space. A PCB allows components to be correctly connected to a power source while being safely insulated. Also, circuit boards are less expensive than other options because they can be designed with digital design tools and manufactured in high volume using factory automation.
Partially straight up, helping you get the answer: (Copper Chloride)
Copper(II) chloride is the chemical compound with the chemical formula CuCl 2. This is a light brown solid, which slowly absorbs moisture to form a blue-green dihydrate.
Etching helps us to see the structure of the atoms of copper.
What is etching?The term etching refers to the process by which we expose the inner structure of copper. It is usually done electrically or by the use of an acid. The surface of the copper is removed and the inner structure of the copper is shown.
As such, when you etch copper, you can see the inner structure such as the arrangement of the atoms of copper and how they fit together.
As such looking through the etched copper would help you to appreciate that matter is composed of atoms.
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Blake is using a screw to hang on a picture in his room. Which of the these is the best description of a screw?
A. A screw allows you to use less force because a screw acts like a pulley.
B. A screw allows you to use less force because a screw acts like an inclined plane.
C. A screw allows you to do less work because a screw acts like a pulley.
D. A screw allows you to do less work because a screw acts like an inclined plane.
When using a screw to hang a picture, it is important to understand its function. The best description of a screw is option B - "A screw allows you to use less force because a screw acts like an inclined plane."
Screws are simple machines that have an inclined plane wrapped around a cylinder. This inclined plane is known as the thread. As the screw is turned, the thread pulls the screw into the material it is being screwed into, allowing it to hold on tightly.
Because of this design, screws are able to reduce the amount of force needed to hold an object in place. This is because the force applied to the screw is spread out over a larger area, making it easier to turn the screw and insert it into the material.
In conclusion, when using a screw to hang a picture or any other object, remember that it is an inclined plane wrapped around a cylinder, designed to reduce the amount of force needed to hold an object in place.
Answer: The answer is B! <3
Explanation:
When Blake puts a screw into his wall, it is a good description of an inclined plane. The threads of a screw act like an inclined plane to increase the distance over which you exert the input force. As the threads of the screw turn, they exert an output force on the wood, pulling the screw into the wood. So the answer is B. I hope this helped! :)
What type of heat transfer heats the air in our homes? A. radiation B. conduction C. convection
Answer:
I believe the answer is A. Radiation/ Radiant Heat.
Why were the Spanish interested in conquering Peru?
Write your response in one to two complete sentences.
The Spanish were interested in conquering Peru because _________________________________________________________________________
Answer:
531–1532 – Pizarro's third voyage to Peru. Spaniards form a bond with the Natives (Huancas, Chankas, Cañaris and Chachapoyas) who were under the oppression of the Inca Empire, and Pizarro includes them among his troops to face the Incas. Atahualpa is captured by Spanish.
Explanation: Is this right ?
if it is please give thanks
If new crust is forming on the mid-ocean ridge, why doesn't the Earth get bigger?
pls helppppppp
Answer: The earth isn't getting any bigger because when ocean crust subducts, or slides under, other pieces of Earth's crust the earth just makes more.
Explanation:
Answer:The earth isn't getting any bigger because when ocean crust subducts, or slides under, other pieces of Earth's crust the earth just makes more.
Explanation:
Which part of a plant is responsible for carrying out photosynthesis
Answer:
A leaf prepares food for the plants. The process of making food by the plant using carbon dioxide, water, chlorophyll, and light is called photosynthesis. Plants store food in the leaves, fruits, and stems in the form of starch. Plants breathe with the help of their leaves.
Explanation: