Categories

-What is the mole fraction of Nitrogen? A. 0.056 B. 0.167 C. 0.667 D. 0.611 E. 0.733 -What is the mole fraction of carbon dioxide A. 0.056 B. 0.067 C. 0.256 D. 0.667 E. 0.757 -What is the mole fraction of Oxygen? A. 0.167 B. 0.267 C. 0.278 D. 0.467 E. 0.578

-What is the mole fraction of Nitrogen? A. 0.056 B. 0.167 C. 0.667 D. 0.611 E. 0.733 -What is the mole fraction of carbon dioxide A. 0.056 B. 0.067 C. 0.256 D. 0.667 E. 0.757 -What is the mole fraction of Oxygen? A. 0.167 B. 0.267 C. 0.278 D. 0.467 E. 0.578

Categories

If 5.0 liters of carbon dioxide gas are produced by the reaction below at STP, how many liters of oxygen gas were used in the reaction? 2CO (g) + O2 (g) yields 2CO2 (g) 10.0 L 7.5 L 5.0 L 2.5 L

If 5.0 liters of carbon dioxide gas are produced by the reaction below at STP, how many liters of oxygen gas were used in the reaction? 2CO (g) + O2 (g) yields 2CO2 (g) 10.0 L 7.5 L 5.0 L 2.5 L

Categories

I WILL RATE BRAINLIEST I JUST NEED HELP!!!! In a reaction, 15 moles of carbon dioxide are produced from 5 moles of iron (III) oxide and 15 moles of carbon monoxide. What is the mole ratio of carbon dioxide to carbon monoxide? I am completely lost on this…

I WILL RATE BRAINLIEST I JUST NEED HELP!!!! In a reaction, 15 moles of carbon dioxide are produced from 5 moles of iron (III) oxide and 15 moles of carbon monoxide. What is the mole ratio of carbon dioxide to carbon monoxide? I am completely lost on this…

Categories

Air tiny air sacs through which oxygen and carbon dioxide pass in the and out of the bloodstream

Air tiny air sacs through which oxygen and carbon dioxide pass in the and out of the bloodstream

Categories

Choose the ionic compound from the following choices A)Cesium BromideB)Nitrogen Tirfluoride C)Soduim Chloride D)Carbon Dioxide

The best way to figure out ionic compounds is to simply look at where each element is on the periodic table. Ionic compounds tend to be on opposite sides of the periodic table.
This is because a compound is ionic if one element gives up electrons and one receives electrons. Because of the octet rule, each element wants to have a full set of valence electrons and be like the noble gases, the last row of the periodic table. Thus, elements that are close to being like a noble gas are very reactive since they want to be like a noble gas so badly. The elements on the left side of the periodic table want to lose electrons while those on the right want to gain electrons. When they meet, they react and form ionic compounds.

So which of these four compounds have elements on opposite ends of the periodic table? (By the way, there are two ionic compounds in the choices you gave)

Categories

I WILL RATE BRAINLIEST!!!!! NEEED HELP PLEASEEEEE What is the mole ratio of water to carbon dioxide in the following equation?C3H8 + 5O2 3CO2 + 4H2O 6:8 4:3 7:9 8:6 I cannot figure this one out…

I WILL RATE BRAINLIEST!!!!! NEEED HELP PLEASEEEEE What is the mole ratio of water to carbon dioxide in the following equation?C3H8 + 5O2 3CO2 + 4H2O 6:8 4:3 7:9 8:6 I cannot figure this one out…

Categories

How does cellular respiration explain why animals breathe rapidly when they are running? Energy is used up while running, and cellular respiration needs oxygen to produce more energy. Energy is used up while running, and cellular respiration needs carbon dioxide to produce more energy. Glucose is used up while running, and cellular respiration needs oxygen to make glucose. Glucose is used up while running, and cellular respiration needs carbon dioxide to make glucose.

Answer is: Energy is used up while running, and cellular respiration needs oxygen to produce more energy.

Cellular respiration creates an energy molecule when glucose is broken down.

Balanced chemical reaction for cellular respiration (convert biochemical energy):

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy, or:

glucose + oxygen → carbon dioxide + water + energy .

Carbon dioxide and water are released during cellular respiration.

This reaction is exothermic (energy is released).

Categories

Which is a product of the cellular respiration reaction? glucose carbon dioxide blood cells

Which is a product of the cellular respiration reaction? glucose carbon dioxide blood cells

Categories

A sample of carbon dioxide gas, co2 (g), occupies a volume of 5.75 l at 0.890 atm. if the temperature and the number of moles remain constant, calculate the volume when the pressure a. increased to 1.25 atm b. decrease to 0.350 atm

According to Boyle’s law;
P1V1 = P2V2
P1 is the pressure of the gas in the first case.
V1 is the volume of the gas in the first case.
P2 is the pressure of the gas in the second case.
V2 is the volume of the gas in the second case.

P1 = 0.890 atm, V1 = 5.75l

a. P2 = 1.25 atm,
0.890*5.75 = 1.25*V2
V2 = 4.094 l

b. P2 = 0.350 atm,
0.890*5.75 = 0.350*V2
V2 = 14.621 l.

Categories

Carbon dioxide enters the blood at the _____________________ capillaries. here, some of the carbon dioxide binds to the _____________ region of hemoglobin.

Answered by answersmine AT 22/10/2019 – 05:00 AM

Carbon dioxide enters the blood at the systemic capillaries. Here, some of the carbon dioxide binds to the globin region of hemoglobin. The systemic capillaries function to carry oxygenated blood for the tissues of the body. As it enters these capillaries, blood would lose oxygen and in return gain CO2 molecules due to the difference in pressure of the tissues and the blood.

Categories

How is the bulk of carbon dioxide transported in blood?

How is the bulk of carbon dioxide transported in blood?

Categories

Sulfur dioxide: a. creates a reddish-brown haze in the sky b. is a secondary air pollutant c. has an irritating odor and is colorless d. is relatively harmless to the environment

Helicases unwind the two parental DNA’s strands and creates the replication fork; single strand binding proteins keep the single strand from joining.

Further information:

• DNA replication: a biological method occurring in all living organisms that is the basis for biological inheritance

Helicase: It is an enzyme that may unwinds the DNA helix ahead of the replication machinery.

Origin of replication: a specific sequence in a genome at which replication is started.

Steps of DNA replication:

• During initiation, proteins fix to the source of replication while helicase unwinds the DNA helix and two replication forks are formed at the source of replication.

• During elongation, a primer sequence is added with complementary RNA nucleotides, which are then substituted by DNA nucleotides.

• During elongation the leading strand is made constantly, while the lagging strand is made in portions called Okazaki fragments.

• During termination, primers are detached and substituted with new DNA nucleotides and the backbone is stuck down by DNA ligase.

Purpose of DNA replication:

The purpose of DNA replication is to produce two duplicate copies of a DNA molecule. This is essential for cell division during development or repair of damaged tissues. DNA replication ensures that each new cell receives its own replica of the DNA.

Subject: Biology

Level: High school

Keywords:

• DNA replication

• Helicase

• Origin of replication

• Steps of DNA replication

brainly.com/question/9434044

brainly.com/question/5939912

brainly.com/question/10654641

brainly.com/question/10652950

Categories

Nitrogen dioxide, NO2(g) (30Hf = 33.84 kJ/mol), is decomposed according to the following reaction: What is the enthalpy change when 2.50 mol of nitrogen dioxide decomposes?

Nitrogen dioxide, NO2(g) (30Hf = 33.84 kJ/mol), is decomposed according to the following reaction: What is the enthalpy change when 2.50 mol of nitrogen dioxide decomposes?

Categories

WORTH 15 FOR 2 EASY QUESTIONS MULTIPLE CHOICE SECOND QUESTIONS EVEN EASIER THAN THE FIRST IM PRETTY SURE THE ANSWER IS C JUST CHECKING Which of the following conditions would likely prevent the assembly and survival of new kinds of organic molecules on Earth today? A. the presence of bacteria and other life forms B. the presence of carbon dioxide C. the supply of atoms that serve as raw material D. the light and warmth from the sun 2. Several different species make up a A. family. B. genus. C. kingdom. D. phylum.

The integumentary system covers the surface of the body is true about the integumentry system.

Explanation:

The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.

The integumentary system is the largest organ in the body that covers the surface of the body.

Thus, The integumentary system covers the surface of the body is the true statement about the integumentry system.

Categories

The cell membrane of a red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Since other substances are blocked from coming in, this is membrane is called: A) perforated B) semi-permeable C) non-conductive D) permeable

Correct answer: C). Genetically different haploid cells

Meiosis is a type of cell division in which four haploid cells are produced, which are genetically different from the parent. It reduces the chromosome number exactly half as contained in the parent. That is why it is called as a reductional division.

In the first round of meiosis I homologous pairs of chromosome separate and the sister chromatids separate during meiosis II.

Categories

When the following reaction is balanced the coefficient in front of carbon dioxide is: ____ C5H12 + ____ O2 → ____ CO2 + ____ H2O

The coefficient of CO₂ is 5.

Explanation:

Balancing the reaction:

___C₅H₁₂ + ___O₂ → ___CO₂ + ___H₂O

There are 5 C in the left side, so we put 5 on the right side:

___C₅H₁₂ + ___O₂ →  5CO₂ + ___H₂O

There are 12 H in the left side, so we put 6 as the coefficient of H₂O:

___C₅H₁₂ + ___O₂ →  5CO₂ + 6H₂O

Finally, there are 16 O in the right side, so we put 8 as the coefficient of O₂

___C₅H₁₂ + 8O₂ →  5CO₂ + 6H₂O

The coefficient of CO₂ is 5.

Categories

How many carbon dioxide molecules are produced by the complete aerobic breakdown of one glucose molecule

How many carbon dioxide molecules are produced by the complete aerobic breakdown of one glucose molecule

Categories

During fermentation, the conversion of pyruvate into lactic acid requires… a. NADH b. carbon dioxide c. ATP d. oxygen gas

The right answer is A. lactic acid fermentation to aerobic respiration.

Unlike aerobic exercise, anaerobic exercises involve intense physical effort and short, causing anaerobiosis in the muscles which forces them to switch to anaerobic respiration which is lactic fermentation (producing lactic acid and ATP (energy) from pyruvate), followed by a rest period, again providing oxygen to the muscles, allowing them to switch back to aerobic respiration.

An anaerobic exercise has the function of muscle, it does not burn fat. Nevertheless, by increasing muscle mass, it requires to spend more calories.

Categories

The _____ is a group of organs used for breathing in oxygen and getting rid of carbon dioxide.

The _____ is a group of organs used for breathing in oxygen and getting rid of carbon dioxide.

Categories

Carbon monoxide (CO) gas reacts with oxygen (O2) gas to produce carbon dioxide (CO2) gas. If 1.00 L of carbon monoxide reacts with excess oxygen at standard temperature and pressure, what volume of carbon dioxide is produced?

Answer: Option (d) is the correct answer.

Explanation:

A hydrogen bond is defined as the bond formed between an electropositive atom that is, hydrogen and a strongly electronegative atom like oxygen, nitrogen, chlorine etc.

If a compound contains hydrogen atom and when it is put into water then it is able to combine with the hydrogen of water. Hence, then there will be disruption of bond.

On the other hand, a covalent bond is defined as the bond formed due to sharing of electrons between the combining atoms.

For example, is a covalent compound and when it is dissolved in water then it will not dissociate into ions. Hence, it is difficult to disrupt its bond.

Whereas ionic bond is formed due to transfer of electrons from one atom to another. As water is also a polar compound so, ionic compounds are able to easily dissociate into ions when dissolved in water.

As a result, ionic compounds will also lead to disruption of bond.

Thus, we can conclude that covalent bonds between carbon atoms would be difficult to disrupt when compounds are put into water.

Categories

Which best explains why fungi are often called natural recyclers? They provide a continuous food resource for many other organisms. They break down rotting materials and return nutrients to the soil. They take in large amounts of carbon dioxide, helping to clean the air. They are found in nature and have many different practical uses.

The human activities that lead to soil erosion are deforestation and agriculture.

Explanation:

Soil erosion (the wearing away and displacement of the topsoil) may be caused by natural factors such as strong winds, water, ice and animals, or by human activities that make the soil weak.

Deforestation is the logging or burning of trees for the purpose of construction or the usage of wood for several activities (heating or paper-making). When they remove the vegetation, they leave the upper layer of soil (topsoil) unprotected against winds and water.

Agriculture is the activity of growing crops for the production of food. When farmers plant their vegetation, they remove the topsoil and this is mostly carried away by winds into water streams (they become sediments).

Categories

Where in an equation for photosynthesis does carbon dioxide belong?

Where in an equation for photosynthesis does carbon dioxide belong?

Categories

The respiratory system allows for gas exchange to happen in the lungs. How does the respiratory system affect the cardiovascular system? A.The respiratory system supplies the carbon dioxide that the cardiovascular system transports to the different cells for the production of energy. B. The respiratory system supplies the oxygen that the cardiovascular system transports to the different cells for the production of energy. C. The cardiovascular system supplies the carbon dioxide that the respiratory system transports to the different cells for the production of energy. D. The cardiovascular system supplies the oxygen that the respiratory system transports to the different cells for the production of energy.

Explanation: Every cell performs various types of metabolic functions that allows the cell to sustain life. Different cell performs different functions based on their structure and location.

Cells have different organelles that helps it to perform various functions. Example: The chloroplast in the plant cell helps in the absorption of the sunlight to perform the process of photosynthesis.

The ribosomes helps in the the protein synthesis that helps to perform vital functions.

The mitochondria of the cell helps in the production of the high energy molecules known as adenosine tri phosphate.

Categories

If you send a sound wave of the same wavelength (λ = 2.00 m) through air, helium, and carbon dioxide, describe how the pitch of the sound will compare through each medium.

Electrical pressure, called “electro-motive force” (EMF), is what causes current
to flow in an electrical circuit. EMF is measured in volts. Pressure and the quantity of electricity transmitted can be considered analogous to pressure and quantity of water flowing in pipes: the longer the distance, the higher is the flow of water (called the “flow of electrical charge, which is also known as the “electric current”). That is why, for long distance transmission, high pressure (voltage for electricity) is required, failing which, the current – and therefore the power – will not reach the intended destination. Instead, it will be lost (also called “dissipate”) along the way. We can think of electrical

current as the quantity of electricity which will be drawn from the pipeline

cables for electricity) at the pressure (= voltage) required.

P.S

Happy to help you have an AWESOME!!! day ^-^