which character of Life distinguishes a fire and a flowering plant​

Answer:units of G.

Explanation:Milk of magnesia, a suspension of Mg(OH)2

in water, reacts with stomach acid (HCl) in a

neutralization reaction.

Mg(OH)2(s) + 2HCl(aq) −!

2H2O(l) +MgCl2(aq)

What mass of MgCl2 will be produced if

4.55 g of Mg(OH)2 reacts?

Answer in units of g.

021 (part 2 of 2) 10.0 points

What mass of HCl is required to completely

react with 4.55 g of Mg(OH)2?

The correct answer is 0.15.

We are aware that there is 0.05 mol of an unidentified hydrocarbon we will refer to as "X" and that its burning produces 6.6 g of carbon dioxide and 3.6 g of water.

These quantities might be converted to moles by applying the following formula:

amount= mass/ relative atomic mass

Thus, the following equation may be written for H2O: moles = 3.6 / 18 = 0.2 and for CO2: moles = 6.6 / 44 = 0.15.

0.05X + x'O2 = 0.15CO2 + 0.2H2O

This may be made simpler by dividing through by 0.05 (this step is likely to be the most helpful to you), resulting in:

1 x + x O2 = 3 co2 + 4 H2O

The hydrocarbon must have been the source of all the carbon in the carbon dioxide and all the hydrogen in the water.

Accordingly, 4 x 2 = 8 moles of H and 3 x 1 = 3 moles of C.

There are 3/1 = 3 Cs and 8/1 = 8 Hs in one X molecule.

This clearly identifies C3H8 or propane as the hydrocarbon X (dividing by 1 seems unnecessary, but it illustrates the process to use if there were more than one mol of X in the first equation).

To learn more about number of moles of carbon dioxide refer the link:

https://brainly.com/question/12723070

#SPJ9

Answer:

no, it is fastest when many bubbles are produced.

Explanation:

Diastereotopic protons  is  the type(s) of protons given are chemically non-equivalent .

What is Diastereotopic protons ?

Diastereotopic protons are essentially different from one another chemically, and they all result in different chemical changes. Usually, this kind of proton belongs to a CH2 group and is found in chiral molecules, although it can also be found in the achiral compounds' more subtle chemical surroundings.

Which protons have the same chemical properties?

Homotopic protons exhibit identical NMR absorptions because their electronic properties are identical because they are chemically comparable.

               Understanding NMR will rely heavily on the capacity to distinguish between chemical equivalency and nonequivalency among atoms in a molecule.

Learn more about Diastereotopic protons

brainly.com/question/28014611

#SPJ4

Other than nuclear power there are products that we get from nuclear reactions that have some benefits to us in society

The mass of nitric oxide produced by the reaction of 2.81 grams of ammonia is 1.59 grams.

The equation for the reaction of ammonia and oxygen to produce Nitric oxide and water is,

4NH₃ + 5O₂ → 4NO + 6H₂O

From the reaction we can see,

4 moles of ammonia = 4 moles of nitrix oxide.

Mole of ammonia = moles of nitric oxide.

Moles = reacted/formed mass/ molar mass

Molar mass of ammonia = 17 g/mol.

Molar mass of nitric oxide = 30 g/mol.

Mass of ammonia reacted = 2.81 grams.

Putting values,

2.81 x 17 = Formed mass of nitric oxide x 30

Formed mass of nitric oxide  = 1.59grams.

The mass of nitric oxide formed is 1.59 grams.

To know more about Moles, visit,

https://brainly.com/question/26255204

#SPJ4

Answer: as the number of predators increases, more prey are captured. as a result the prey population starts to decrease.

Answer:

Exothermic.

Explanation:

So if the sum of the enthalpies of the reactants is greater than the products, the reaction will be exothermic.

Synthesis. Iodine monobromide is formed when iodine and bromine are combined in a chemical reaction: I2 + Br2 → 2 IBr.

Answer:

Solution

verified

Verified by Toppr

Correct option is B)

In sp

3

d type of hybridisation, shape of molecule is trigonal bipyramidal and bond angle will be of 120

o

Answer:

b

Explanation:

Answer:

9302 moles of CO contain 5.60×10²⁷ molecules

Explanation:

We solve this with Avogadro's number.

NA = 6.02×10²³

This number states the how many particles are in 1 mol of anything.

1 mol of atoms contains 6.02×10²³ atoms

1 mol of molecules  contains 6.02×10²³ molecules.

We apply a rule of three:

6.02×10²³ molecules are contained in 1 mol of CO

Then, 5.60×10²⁷ molecules may be contained in (5.60×10²⁷ . 1) / 6.02×10²³

= 9302 moles

Using  body's BMI, Anita weighs 123.92 pounds.

Body Mass Index, or BMI, is a rough indicator of an individual's weight status. The BMI is a reliable indicator of your risk for diseases that can develop as a result of having a higher body fat percentage. Your chance of developing certain conditions like heart disease, high blood pressure, type 2 diabetes, gallstones, respiratory issues, and some malignancies increases with your BMI.

Body mass index (BMI) is calculated using the formula  \(\frac{w}{h^{2} } \times 703\)

Anita is 5 ft 5 in.

Height of Anita in inches = 66 inches

In accordance with the query, we have -

Body mass index formula: \(\frac{w}{h^{2} } \times 703\)

BMI = 20

BMI = \(\frac{w}{h^{2} } \times 703\)

⇒ 20 = \(\frac{w}{66^{2} }\)× 703

⇒ 123.92 pounds

Consequently, Anita weighs 123.92 pounds.

To learn more about body mass index from given link

https://brainly.com/question/15468401

#SPJ4

Iron produced in a blast furnace is harder than pure iron due to the presence of impurities and the way it is produced.

In a blast furnace, iron ore is reduced to iron using coke as a reducing agent and a source of carbon. The high temperatures involved in this process result in the formation of a cast iron product that contains carbon and other impurities in the form of carbides and other compounds.

The presence of carbon and other impurities in the iron makes it harder and stronger than pure iron, which is relatively soft and ductile. The carbides formed during the reduction process act as tiny cutting edges, strengthening the iron and increasing its hardness.

This hardened iron is then melted and poured into molds to form pig iron, which can then be further processed to remove impurities and refine its properties. The end result is a stronger and harder iron product that is better suited for various applications, such as construction or manufacturing.

Learn more on blast furnace here: https://brainly.com/question/4259456

#SPJ1

With the use of quantitative research, this course seeks to improve the development of students' critical thinking and problem-solving abilities. Its objective is to give students the knowledge and expertise they need to create their own research papers.

The advancement of humanity is fueled by research. Curiosity is what drives it; when we get curious, we start asking questions and engrossing ourselves in learning everything there is to know. Education is booming. Without curiosity and inquiry, development would stall, and life as we know it now would be entirely different.

An increase in public awareness, the development of information to better lives, and support of studies to be globally competitive are all advantages of having a Practical Research subject. Also, it adds to our understanding of the quickest and safest method of finding treatments.

To know more about  reseach visit:

https://brainly.com/question/12987823?referrer

#SPJ4

Energy in chemical reactions involves the process in which it is absorbed to break bonds, and energy is evolved as bonds are made.

This is referred to as a process in which one or more substances, the reactants, are converted to one or more different substances, the products.

According to the modern view of chemical reactions, bonds between atoms in the reactants must be broken, and the atoms or pieces of molecules are reassembled into products by forming new bonds. All chemical reactions involve energy changes ad in some reactions, we are able to observe these energy changes as either an increase or a decrease.

Read more about Energy here https://brainly.com/question/19666326

#SPJ1

Newton's laws of motion are stated and explained below:

First law - an object remains in its state of motion in a straight line unless acted upon by an external force. This explains why moving objects are reluctant to stop and objects are rest are reluctant to move.

Second law - the change in the momentum of a body is directly proportional to the applied force and takes place in the direction of the applied force. This explains why acceleration increases with force.

Third law - action and reaction are equal and opposite.

This means that every force has a balancing force acting in the opposite direction

Newton's laws of motion are the laws that describe the observed phenomena of objects in motion.

The laws of motion are useful in determining the various features of motion in a straight line such as velocity, acceleration, impulse, and momentum.

Learn more about Newton's laws of motion at: https://brainly.com/question/28171613

#SPJ1

The aerobic respiration formula is: 6O2 + 6CO2 + 6H2O + energy C6H12O6 + 6O2 + 6CO2 + 6H2O + energy (ATP) In the presence of oxygen (O2), this equation illustrates.

The breakdown of glucose (C6H12O6) to yield carbon dioxide (CO2), water (H2O), and energy in the form of adenosine triphosphate (ATP). This process happens in cells' mitochondria and is the principal way for cells to create energy to carry out their duties. yield carbon dioxide (CO2), water (H2O), and energy in the form of adenosine triphosphate  This process happens in cells' mitochondria and is the principal way for cells to create energy to carry out their duties.  The aerobic respiration formula is: 6O2 + 6CO2 + 6H2O + energy C6H12O6 + 6O2 + 6CO2 + 6H2O + energy (ATP) In the presence of oxygen (O2), this equation illustrates.

learn more about aerobic respiration  here:

https://brainly.com/question/12605249

#SPJ4

Answer:B

Explanation:

Gaseous ethane and ethene have formation enthalpies of 52 kJ mol-1 and -85 kJ mol-1 at 298 K, respectively. The process's endothermic reaction of reactions at 298 K is -137 kJ mol-1.

Ethene is largely utilized as a monomer in the manufacture of plastics, to create other compounds, and as an industrial fuel gas worldwide. Ethene is used in Canada to mature bananas and some other tropical fruits after harvesting, as well as to level citrus.

Historically, hydrocarbons was used to produce ethylene, but natural gas is now being used more and more instead. Steam cracking, a procedure that decomposes petroleum through refining, is the main way to produce ethylene.

To know more about ethene visit:

https://brainly.com/question/29367847

#SPJ1

The percent error for the thermometer reading is approximately 1.72%. For the heat of neutralization, the percent error is approximately 4.46%.

The percent error is calculated using the formula:

\(\[\text{{Percent Error}} = \left|\frac{{\text{{Experimental Value}} - \text{{Accepted Value}}}}{{\text{{Accepted Value}}}}\right| \times 100\%\]\)

For the thermometer reading, the experimental value is 76.25 °C and the accepted value is 74.96 °C. Plugging these values into the formula, we get:

\(\[\text{{Percent Error}} = \left|\frac{{76.25 - 74.96}}{{74.96}}\right| \times 100\% \approx 1.72\%\]\)

For the heat of neutralization, the experimental value is -58.7 kJ/mol and the accepted value is -56.2 kJ/mol. Plugging these values into the formula, we get:

\(\[\text{{Percent Error}} = \left|\frac{{-58.7 - (-56.2)}}{{-56.2}}\right| \times 100\% \approx 4.46\%\]\)

The percent error provides a measure of the deviation between the experimental and accepted values, expressed as a percentage. In both cases, a positive percent error indicates that the experimental value is higher than the accepted value, while a negative percent error indicates that the experimental value is lower. The percent error allows for comparison and evaluation of the accuracy of measurements or experimental results.

To learn more about neutralization refer:

https://brainly.com/question/23008798

#SPJ11

The general formula for an aldehyde is CnH2n+1CHO or CnH2nO.

An aldehyde is an organic chemical that contains a functional group with the formula RCH=O. The functional group (without the "R" side chain) is an aldehyde, however it can also be categorized as a formyl group. Aldehydes are widely used and serve vital roles in industry and biology.

Aldehydes have a carbon center that is linked to oxygen by a double bond, hydrogen by a single bond, and a third substituent, which is carbon or, in the case of formaldehyde, hydrogen by a single bond. The middle carbon is frequently described as sp2-hybridized. The aldehyde group is polar in several ways. The length of the C=O bond is around 120-122 picometers.

To learn more about aldehydes visit:

https://brainly.com/question/10287085

#SPJ4

If a chemist adds a chemical to pure water and there is a 100-fold increase in the concentration of hydrogen ions then the best approximate value of new pH is 5.

When only pure water is there.

H₂O ⇌ H⁺ + OH⁻

pKw = pH + pOH

14 = pH + pH ( This is because the value of pH and pOH is same in water and we need to consider pH here.)

14 = 2pH

pH= 14/2 = 7

So, pH of pure water is 7.

Concentration of hydrogen ions in pure water can be calculated using the equation

pH = -log[H⁺]

7 = -log[H⁺]

[H+] = 10⁻⁷ M

So, the concentration of hydrogen ions in pure water is 10⁻⁷ M.

Now, the chemist added a chemical to this pure water such that there is   100- fold increase in concentration of hydrogen ions.

So, the new concentration of hydrogen ions is calculated as shown below.

[H⁺] = 100 ×10⁻⁷ M

      = 10⁻⁵ M

The new concentration of hydrogen ions is 10⁻⁵ M.

Now, the new pH can be calculated using the formula

pH  = -log[H⁺]

      = -log[10⁻⁵]

      = -×-5log[10]        

       = 5×1

       = 5

So, the new pH value = 5.

To know more about pH here

https://brainly.com/question/2288405?referre

#SPJ4

Answer:

1.46mol of Al2(SO4)3 weights 499.5 grams

Explanation:

First we will find the gram formula mass of Al2(SO4)3.

Al * 2 = 26.98 g/mol * 2 = 53.96 g

SO4 * 3 = 96.06 g/mol * 3 = 288.18

53.96 + 288.18 = 342.14 g

That is the mass of 1 mol of AL2(SO4)3.

Now we will multiply 342.14g by 1.46.

342.14 * 1.46 = 499.5244 g

Or ... 499.5 g

Answer:

b

Explanation:

G is always positive when enthalpy increases and entropy decreases.

The temperature can be the deciding factor in spontaneity when the enthalpy and entropy terms have opposite signs: If ΔH is negative, and –TΔS positive, the reaction will be spontaneous at low temperatures (decreasing the magnitude of the entropy term).

Where ΔH is the enthalpy change (the heat of the reaction) and ΔS is the change in entropy. If the free energy is negative, we are looking at changes in enthalpy and entropy that favor the process and it occurs spontaneously.

Learn more about the spontaneous reaction here https://brainly.com/question/24376583

#SPJ2

heyy!

Answer:

Mushroom farming, also known as mushroom cultivation, typically involves several key steps. Here's a general overview of the process:

Substrate Preparation: The first step is to prepare the substrate, which is the material on which the mushrooms will grow. Common substrates include materials like straw, wood chips, sawdust, or agricultural waste. The substrate needs to be properly prepared by pasteurization or sterilization to eliminate competing organisms and create favourable conditions for mushroom growth.

Inoculation: Once the substrate is prepared, it is inoculated with mushroom spawn. Spawn is a material containing mycelium, which is the vegetative part of the mushroom fungus. The mycelium acts as the "seed" for mushroom growth. The spawn is mixed or distributed throughout the substrate, either by hand or using specialized equipment.

Incubation: After inoculation, the substrate bags or containers are placed in a controlled environment with specific temperature, humidity, and lighting conditions. This stage is called incubation. During incubation, the mycelium grows and colonizes the substrate, forming a network of interconnected threads.

Casing: Once the mycelium has fully colonized the substrate, the next step is casing. Casing involves applying a layer of material on top of the colonized substrate, usually a mixture of peat moss and other additives. This casing layer provides a microenvironment that promotes the formation of mushroom fruiting bodies.

Fruiting: Following casing, the bags or trays containing the substrate and casing layer are moved to a fruiting room or chamber. The fruiting room is set to specific environmental conditions, including temperature, humidity, and lighting, which simulate the natural conditions required for mushroom growth. Under these conditions, small pinheads begin to form, which then develop into mature mushrooms.

Harvesting: Once the mushrooms have reached maturity, they are ready for harvest. Harvesting involves carefully plucking or cutting the mature mushrooms from the substrate. It is essential to handle the mushrooms gently to avoid damage.

Post-Harvest Management: After harvesting, the mushrooms are sorted, cleaned, and packaged for distribution. Proper post-harvest management, such as refrigeration or controlled storage conditions, may be necessary to maintain freshness and quality.

Crop Rotation and Maintenance: Following the harvest, the substrate may undergo a process called "crop rotation." This involves removing the spent substrate, disinfecting the growing area, and starting the process again with fresh substrate and spawning. Regular maintenance, including monitoring for pests and diseases, maintaining appropriate environmental conditions, and adjusting cultural practices, is crucial for successful mushroom farming.

It's important to note that specific mushroom species may have different cultivation requirements, and there may be variations in the process depending on the type of mushroom being grown. Additionally, mushroom farming can be done in various scales, from small-scale operations to large commercial farms, each with its own set of practices and equipment.

hope you found that helpful :))

d. helium, he

it's medical