Which of the following would not be a compound?

A. C6 H12 06

B. (SO)4

C. OH20

D. C13

Answer:

1. The combined number of protons and neutrons remains constant.

2. There are two atoms with mass numbers of 2.

3. It is the number of protons plus neutrons.

4. A nucleus with a greater mass than any of the reactants will be produced.

5. Fusion reactions in the sun convert small amounts of matter into large amounts of energy.

Explanation: I couldn't see the comments so I guess some ppl can't either but here you go got them all correct! :)

Th sun produces energy through fusion reaction by converting small amount of matter into larger amounts of energy.

The sun is able to produce energy because protons of hydrogen atoms present in the sun collide violently in the sun's core and fuse together leading to the formation helium atom.

This process of fussion is referred to as a PP (proton-proton) chain reaction, and it emits an enormous amount of energy

Learn more about Fussion at https://brainly.com/question/638069

While having experienced polar explorers at the Catlin Arctic Survey would have been beneficial in many ways, it would also have been important for them to work collaboratively with the rest of the team.

Advantages:

Experienced polar explorers would have had a wealth of knowledge and skills, such as how to travel over the ice, how to set up camp, and how to handle emergencies.

Experienced polar explorers would have been able to make informed decisions about the best routes to take and the most efficient ways to travel. This could have helped to save time and energy.

Disadvantages:

Experienced polar explorers may have been set in their ways and resistant to new ideas. This could have hindered the team's ability to adapt to changing circumstances and make the most of new opportunities.

Experienced polar explorers may have been overconfident and taken risks that the rest of the team was not comfortable with. This could have put everyone's safety at risk.

To learn more about the Catlin Arctic Survey, follow the link:

https://brainly.com/question/28313250

#SPJ1

Answer:

study island

proof

Explanation:

Fossilized marine creatures found at the top of the Himalayan Mountains provide evidence for a scientific theory of plate tectonics. Therefore, option (D) is correct.

Plate tectonics can be explained as the Earth's lithosphere being made of a large number of tectonic plates that have been slowly moving since about 3.4 billion years ago.

The lithosphere is broken into 7 or 8 major plates and many minor plates or "platelets". These plates meet, and their relative motion evaluates the kind of plate boundary: convergent, transform, or divergent.

Mountain-building, Earthquakes, volcanic activity, and oceanic trench formation take place along these plate boundaries. The relative annual movement of the plates ranges from 0 to 10 cm.

Tectonic plates are comprised of the oceanic and the thicker continental lithosphere. The process of subduction which is actually one plate moving under another carries the edge of the lower plate down into the mantle along convergent boundaries.

Pebbles, Shells, and marine fossils found in the limestone beds of the tallest Himalayas Mountains give evidence of the theory of plate tectonics.

Learn more about plate tectonics, here:

brainly.com/question/19317822

#SPJ6

Gas legislation

PV = nRT

where P is atmospheric pressure

Volume (measured in litres)

The number of moles is n.

R = gas constant (0.0821 L atm/(mol K))

Temperature (in Kelvin) equals T.

We need to rearrange the ideal gas law to solve for n:

n = PV / RT

To use this equation, we need to know the pressure, temperature, and volume of the carbon dioxide.

0.002355 moles of carbon dioxide are equal to 235.5 litres of the petrol. As a result, 0.002355 moles of carbon dioxide are equivalent to 0.053 litres.

This is because 1 mole of carbon dioxide is equal to 22.4 litres. This indicates that there are 0.002355 moles of carbon dioxide for every 0.053 litres of carbon dioxide.

Therefore, there are 0.002355 moles of carbon dioxide in 235.5 litres of carbon dioxide.

Learn more about carbon dioxide at:

https://brainly.com/question/3049557

#SPJ1

A gas produced when H3PO4 is added to an aqueous solution of Ba(NO3)2

Phosphoric acid is a weak acid. Phosphoric acid, also known as orthophosphoric acid, is a tricrotic acid that exists as a dense liquid. It is an irritant or corrosive to the skin, eyes, and other mucous membranes of both humans and laboratory animals. Its salts, though, exhibit a significantly lower irritancy potential. Phosphoric Acid can irritate the lungs. Repeated exposure may cause bronchitis to develop with cough, phlegm, and/or shortness of breath. * Long-term exposure to the liquid may cause drying and crack of the skin.

H3PO4 can donate three protons during a dissociation reaction H3PO4 has three steps of dissociation.

First ionization step: H3PO4(Aq)⇌H+(aq)+H2PO4−(aq)

Find more about H3PO4:-

brainly.com/question/27649112

#SPJ4

Answer:

When the weather is nice, many people begin to work on their yards and homes. For many projects, sand is needed as a foundation for a walk or to add to other materials. You could order up twenty million grains of sand and have people really stare at you. You could order by the pound, but that takes a lot of time weighing out. The best bet is to order by the yard, meaning a cubic yard. The loader can easily scoop up what you need and put it directly in your truck.

Avogadro’s Number

It certainly is easy to count bananas or to count elephants (as long as you stay out of their way). However, you would be counting grains of sugar from your sugar canister for a long, long time. Atoms and molecules are extremely small – far, far smaller than grains of sugar. Counting atoms or molecules is not only unwise, it is absolutely impossible. One drop of water contains about 10 22 molecules of water. If you counted 10 molecules every second for 50 years without stopping you would have counted only 1.6 × 10 10 molecules. Put another way, at that counting rate, it would take you over 30 trillion years to count the water molecules in one tiny drop.

Explanation:

Answer:

This process of growing, moving and shedding takes about four weeks. SO I would think dividing is around a month

Explanation:

Hope this helps! Consider Brainiest! <3

Answer:

1/2 to 1 and 1/2 hours

Explanation:

Skin cells go through the division phase that takes between 1/2 to 1 and 1/2 hours to complete, depending on the location. Body cells, which include skin, hair, and muscle, are duplicated through the process of mitosis. Skin cells belong in the category of somatic cells and are duplicated at a rapid rate during life.

1. For the pair of half-reactions:

Pt2+(aq) + 2e- → Pt(s)    ... (1)

Sn2+(aq) + 2e- → Sn(s)    ... (2)

To obtain the balanced equation for the overall cell reaction, we need to multiply the half-reactions by appropriate coefficients to ensure that the number of electrons transferred is equal. In this case, we can multiply equation (1) by 2 and equation (2) by 1:

2(Pt2+(aq) + 2e-) → 2(Pt(s))

Sn2+(aq) + 2e- → Sn(s)

Combining the equations, we have:

2Pt2+(aq) + Sn2+(aq) → 2Pt(s) + Sn(s)

The cell notation for this reaction is:

Pt2+(aq) | Pt(s) || Sn2+(aq) | Sn(s)

To calculate the standard cell potential (E°), we need to know the standard reduction potentials for Pt2+/Pt(s) and Sn2+/Sn(s) half-reactions. Referring to standard reduction potential tables, we find:

E°(Pt2+/Pt(s)) = +1.20 V

E°(Sn2+/Sn(s)) = -0.14 V

The overall cell potential (E°cell) is the difference between the reduction potentials:

E°cell = E°(cathode) - E°(anode) = 0.00 V - (-0.14 V) = +0.14 V

Therefore, the standard cell potential for this reaction is +0.14 V.

2. For the pair of half-reactions:

Co2+(aq) + 2e- → Co(s)    ... (3)

Cr3+(aq) + 3e- → Cr(s)    ... (4)

To balance the number of electrons transferred, equation (4) can be multiplied by 2:

2(Co2+(aq) + 2e-) → 2(Co(s))

Cr3+(aq) + 3e- → Cr(s)

Combining the equations, we have:

2Co2+(aq) + Cr3+(aq) → 2Co(s) + Cr(s)

The cell notation for this reaction is:

Co2+(aq) | Co(s) || Cr3+(aq) | Cr(s)

To calculate the standard cell potential (E°), we refer to the standard reduction potentials:

E°(Co2+/Co(s)) = -0.28 V

E°(Cr3+/Cr(s)) = -0.74 V

The overall cell potential (E°cell) is the difference between the reduction potentials:

E°cell = E°(cathode) - E°(anode) = -0.74 V - (-0.28 V) = -0.46 V

Therefore, the standard cell potential for this reaction is -0.46 V.

3. For the pair of half-reactions:

Hg2+(aq) + 2e- → Hg (l)    ... (5)

Cr2+(aq) + 2e- → Cr(s)    ... (6)

The equation for the overall cell reaction can be obtained by multiplying equation (6) by 2:

2(Hg2+(aq) + 2e-) → 2(Hg (l))

Cr2+(aq) + 2e- → Cr(s)

Combining the equations, we have:

2Hg2+(aq) + Cr2+(aq) → 2Hg (l) + Cr(s)

For more such questions on balanced equation.

https://brainly.com/question/11904811

#SPJ8

Answer:

In this technique, a sample is burned under constant volume in a device called a bomb calorimeter. The amount of heat released in the reaction can be calculated using the equation q = -CΔT, where C is the heat capacity of the calorimeter and ΔT is the temperature change.

Explanation:

A wavelength's frequency and energy (E) drop as it becomes longer. You may conclude from these equations that the wavelength grows shorter as the frequency rises. The wavelength lengthens as the frequency drops.

Since frequency and wavelength are inversely related to one another, the wavelength of the wave falls as frequency increases.

The final temperature of the granite and the water in the calorimeter is 8.4°.

We know that in accordance to the first law of thermodynamics, energy is neither created nor destroyed but it can be converted from one form to another. This implies that the heat that is lost by the granite has to be equal to the heat that is gained by the water in this case.

Knowing that;

H = mcdT

H = heat lost or gained

c = specific heat capacity of the substance

dT = temperature change

Heat lost by the granite = Heat gained by water

52.6 * 0.79 * (θ - 125) = 100 * 4.18 * (θ - 20)

41.6θ - 5200 = 418θ - 8360

Collecting the like terms

41.6θ  - 418θ =  - 8360 + 5200

-376.4θ =  -3160

θ = -3160/-376.4

θ = 8.4°

Learn more about calorimeter:https://brainly.com/question/4802333

#SPJ1

Answer:48

Explanation:

Answer:  3. 0.125 X 10”23 molecules

Explanation:

Explanation:

Electrons are negatively charged. So it has a -3 charge.

The growth of the new plant depicts the asexual reproduction characteristic. The characteristic that describes the growth of the new plant in Stephan's mother cutting a twig from a rose bush and planting it in the soil is asexual reproduction.

Asexual reproduction is the mode of reproduction by which organisms generate offspring that are identical to the parent's without the fusion of gametes. Asexual reproduction is a type of reproduction in which the offspring is produced from a single parent.

The offspring created are clones of the parent plant, meaning they are identical to the parent.The new plant in Stephan’s mother cutting a twig from a rose bush and planting it in the soil depicts the process of asexual reproduction, which is the ability of a plant to reproduce without seeds. In asexual reproduction, plants can reproduce vegetatively by cloning themselves using their roots, bulbs, or stems.

Know more about    characteristic  here:

https://brainly.com/question/28790299

#SPJ8

Answer:

A,C,D,B

Explanation:

1killometer=1000m

1mm=0.001m

1cm=0.01m

base unit of length is meter

Answer:1 kilometer 1,000 meters

1 centimeter 10 millimeters

1 meter 100 centimeters

Explanation:

Answer:

When a neutral atom loses one or more electrons, the total number of electrons decreases while the number of protons in the nucleus remains the same.

The result is that the atom becomes a cation —an ion with a net positive charge.

The opposite process can also occur. When a neutral atom gains one or more electrons, the total number of electrons increases while the number of protons in the nucleus remains the same.

The result is that the atom becomes an anion —an ion with a net negative charge.

Explanation:

Khan Academy

When a neutral atom loses one or more electrons, the total number of electrons decreases while the number of protons in the nucleus remains the same. The result is that the atom becomes a cation - an ion with a net positive charge.

The opposite process can also occur. When a neutral atom gains one or more electrons, the total number of electrons increases while the number of protons in the nucleus remains the same. The result is that the atom becomes an anion - an ion with a net negative charge.

The mass percent composition of each constituent element of lead (II) phosphate is:
Pb = 76.58%
P = 7.63%
O = 15.79%

To calculate the mass percent composition of each constituent element of lead (II) phosphate, we need to first find the molar mass of each element in the compound and then divide each by the total molar mass of the compound.The chemical formula for lead (II) phosphate is Pb3(PO4)2.

The molar mass of each element in the compound is:
Pb = 207.2 g/mol
P = 30.97 g/mol
O = 16.00 g/mol

The total molar mass of the compound is:
Pb3(PO4)2 = (3 × 207.2) + (2 × 30.97) + (8 × 16.00) = 811.34 g/mol

The mass percent composition of each element is:
Pb = (3 × 207.2) / 811.34 × 100 = 76.58%
P = (2 × 30.97) / 811.34 × 100 = 7.63%
O = (8 × 16.00) / 811.34 × 100 = 15.79%

More questions on mass percent can be obtained here: https://brainly.com/question/23896069

#SPJ11

Answer:

1.81 micromol/L.

Explanation:

The concentration of a solution is calculated by dividing the amount of solute by the volume of the solution. In this case, the amount of calcium sulfate is 0.181 micromol and the volume of the solution is 100 mL. So, the concentration of calcium sulfate in the solution is (0.181 micro mol) / (100 mL) = **1.81 micro mol/L

its e00 molew then asg hol

The number of moles of carbondioxide that will be produced in the combustion of methane is 3 moles (option D).

Stoichiometry refers to the study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).

According to this question, methane undergoes combustion in air to produce carbondioxide and water. Methane is the limiting reactant because the other reactant is oxygen of the air which is always present in excess.

Based on the chemical equation given above, 1 mole of methane produces 1 mole of carbondioxide.

This means that 3 moles of methane will produce 3 moles of carbondioxide.

Learn more about stoichiometry at: https://brainly.com/question/9743981

#SPJ1

The desired reaction is 2Al(s) + 3CO2 from Al2O3(s) + 3CO(g) (g) The reactions include 2 Al(s), 3/2 O2(g), and Al2O3(s), with H = 1675.7kJ. ————————— (1) CO(g) = CO2 + 1/2 O2(g) (g).

As a result, the enthalpies of a reactants and products are added together, and the result is used to compute the enthalpy of a reaction. This endothermic process generates and absorbs environmental heat if H is positive. This reaction is exothermic so emits heat into the environment if H is negative.

A negative H indicates that heat is transferred from the a system towards its surroundings, whereas a positive H indicates that heat is transferred from the surroundings into the system. An enthalpy of reaction (Hrxn) for a chemical reaction is the difference of enthalpy between the products and reactants; Hrxn is measured in kilojoules per mole.

To know more about reaction visit:

https://brainly.com/question/28984750

#SPJ1

Considering the definition of molar mass, the correct answer is option c): the mass of 1.85 moles H₂O₂ is 62.9 grams.

The molar mass of substance is a property defined as the amount of mass that a substance contains in one mole.

The molar mass of a compound is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

In this case, you know the molar mass of the elements is:

So, the molar mass of the compound H₂O₂ is calculated as:

H₂O₂= 2× 1 g/mole + 2× 16 g/mole

Solving:

H₂O₂= 34 g/mole

You can apply the following rule of three: If by definition of molar mass 1 mole of the compound contains 34 grams, 1.85 moles of the compound contains how much mass?

mass= (1.85 moles× 34 grams)÷ 1 mole

mass= 62.9 grams

Finally, the mass of 1.85 moles H₂O₂ is 62.9 grams.

Learn more about molar mass:

brainly.com/question/5216907

#SPJ1

Answer:

Webbed Feet

Explanation:

Webbed Feet Benefits:

Most animals with webbed feet are aquatic animals who live in, on, or near the water. Webbed feet help them move quickly through the water when they're chasing food or trying to escape from predators.

For any spontaneous process, universe entropy intensifies is known as the second law of thermodynamics.

Entropy is defined as the degree of randomness or disorderliness of a system.

The entropy of a system generally increases for any spontaneous process.

This is according to the second law of thermodynamics.

In conclusion, the entropy of a system is the a measure of randomness of the system.

Learn more about entropy at: https://brainly.com/question/21578229

#SPJ1

Answer:

The starting position of this object is 3 m.

The object is traveling at a velocity of 3 m/s

Explanation:

the graph begins at 3, and increases by 3 at each second

plz mark me brainliest. :)

Now

No of molecules:

\(\\ \sf\longrightarrow No\:of\;moles\times Avagdro\:no)\)

\(\\ \sf\longrightarrow 3(6.022\times 10^{23})\)

\(\\ \sf\longrightarrow 18.066\times 10^{23}\)

\(\\ \sf\longrightarrow 1.8066\times 10^{22} molecules \)

If the 13.5 mol of the Zn and 3.5 mol of S are mixed together and the heated, the mass of the ZnS will be produced is 93.97 g.

The chemical equation is as :

Zn + S -->  ZnS

The moles of the zinc, Zn the = 13.5 mol

The moles of the sulfur, S = 3.5 mol

1 mole of the Zn produces the 1 mole of the ZnS

1 mole of the S produces the 1 mole of the ZnS

The S is the limiting reactant. The production of the ZnS is depends on the the sulfur.

1 mole of the S produces the 1 mole of the ZnS

The moles of the ZnS = 3.5 mol

The mass of the ZnS = moles × molar mass

The mass of the ZnS = 3.5 × 97.47

The mass of the ZnS = 93.97 g

To learn more about moles here

https://brainly.com/question/31597231

#SPJ1

Answer:

a) equivalence point

b) direct titration

c) primary standard

d) titrand

e) Back titration

f) back titration

g) standard solution

h) standard solution

I) indirect titration

j) end point

Explanation:

A volumetric analysis is one in which a solution of unknown concentration is determined from its volume. This is commonly referred to as titration.

In titration, a standard solution is reacted with another solution of unknown concentration. The point at which the concentration of the standard solution is equal to that of the analyte is known as the equivalence point (usually indicated by a colour change). An indicator may be added to the analyte solution to help identify when the reaction is complete.

Answer: variations

Explanation: