Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties? sr, te n, p in, sb k, be cr, kr

Answer:

missin a diagram buddy

Explanation:

Answer:

fossil

Explanation:

6 CO2 molecules are involved in this reaction which is in turn helping to produce 1 molecule of glucose.

To learn more about photosynthesis visit:

https://brainly.com/question/1388366

#SPJ9

Answer:

An adaptation occurs if a mutation helps an individual survive and reproduce.

Explanation:

Over generations, the mutation will become more common. An adaptation occurs if a mutation isn't passed on to offspring. Hope this helps! xx

The percent composition of C4H10 is 82.7% C and 17.3% H. Option A gives 44.6% C and 45.4% H, which is incorrect. Option B gives 57.3% C and 42.7% H, which is also incorrect. Option C gives 82.7% C and 17.3% H, which is the correct answer. Option D gives 89.4% C and 10.6% H, which is also incorrect.

The percent composition of a compound is the percentage of each element present in the compound by mass. To calculate the percent composition of C4H10, we need to know the molecular weight of the compound and the mass of each element present in it.

The molecular weight of C4H10 is 58.12 g/mol. This means that 1 mole of C4H10 weighs 58.12 g. The mass of 1 mole of carbon is 12.01 g and the mass of 1 mole of hydrogen is 1.01 g. Therefore, the mass of 4 moles of carbon in C4H10 is 4 moles × 12.01 g/mole = 48.04 g, and the mass of 10 moles of hydrogen in C4H10 is 10 moles × 1.01 g/mole = 10.1 g.

The total mass of the elements in C4H10 is 48.04 g + 10.1 g = 58.14 g, which is close to the molecular weight of the compound (58.12 g/mol).

To calculate the percent composition of C4H10, we can divide the mass of each element by the total mass of the elements and multiply by 100%. For carbon, the percent composition is:

% C = (mass of C / total mass of elements) × 100%

= (48.04 g / 58.14 g) × 100%

= 82.7%

For hydrogen, the percent composition is:

% H = (mass of H / total mass of elements) × 100%

= (10.1 g / 58.14 g) × 100%

= 17.3%

Learn more about the percent composition at

https://brainly.com/question/17505281?referrer=searchResults

#SPJ4

Water molecules have a stronger attraction than helium due to the presence of dipole-dipole interactions resulting from the polarity of the water molecule.

Water molecules have a stronger attraction than helium due to the difference in their intermolecular forces. Intermolecular forces are the attractive forces that exist between molecules and play a crucial role in determining the physical properties of substances.

Water molecules have a polar nature, meaning they have a partial positive charge on the hydrogen atoms and a partial negative charge on the oxygen atom.

This polarity arises from the unequal sharing of electrons in the O-H bonds due to oxygen's higher electronegativity compared to hydrogen. The presence of polar bonds within the water molecule gives rise to a dipole-dipole interaction.

In contrast, helium is a noble gas and exists as individual atoms. Helium atoms are electrically neutral and do not possess a permanent dipole moment.

As a result, helium exhibits weak intermolecular forces known as London dispersion forces or Van der Waals forces. These forces arise due to temporary fluctuations in electron distribution, causing temporary dipoles that induce dipoles in neighboring atoms or molecules.

The dipole-dipole interaction in water is stronger than the London dispersion forces in helium. This is because dipole-dipole forces are more significant when there are permanent dipoles in the molecules.

The stronger attraction between water molecules leads to higher boiling and melting points compared to helium.

For more such question on molecules. visit :

https://brainly.com/question/24191825

#SPJ8

Answer:

Explanation:

2 S-II - 12 e- → 2 SIV (oxidation)

6 O0 + 12 e- → 6 O-II (reduction)

2 HgS (s) + 3 O2 (g) → 2 HgO (s) + 2 SO2 (aq)

This is an oxidation-reduction (redox) reaction:

2 S-II - 12 e- → 2 SIV (oxidation)

6 O0 + 12 e- → 6 O-II (reduction)

HgS is a reducing agent, O2 is an oxidizing agent.

The coefficients added to Hg S, 02, Hg O and SO2 to balance this equation are 2, 3, 3,2 respectively.

A balanced equation has the same number of atoms on the reactant and product sides for each element involved in the reaction.

The balanced equation for this reaction is:

2HgS + 3O2 -------> 2HgO + 2SO2

This chemical reaction demonstrates the conservation of mass as the same number of atoms of each element appear on either side of the equation.

This means that the total mass of atoms on the reactant side of the equation will equal the total mass of atoms on the product side of the equation.

Therefore the coefficients added to Hg S, 02, Hg O and SO2 to balance this equation are 2, 3, 3,2 respectively.

Learn more about balanced equation ,here:

https://brainly.com/question/9156817

#SPJ5

Answer:

Inferring is when a scientist uses reasoning to explain or interpret the things they observe

Answer:

1. Crush the sugar into powder.

2. Heat the water.

3. Dissolve it by stirring continuously

Explanation:

1. Crushing the sugar into powder increases surface area. So it increases the changes of dissolving

2. Heating the water increases the capacity of water to dissolve sugar.

3. Stirring continuously increases randomness of particles so eases mixing up thus increasing dissolving tendency.

When balancing a chemical reaction, you can only change the coefficients or numbers in front of the chemical formulas. The goal of balancing a chemical equation is to ensure that the number of atoms of each element on both sides of the equation is equal.

Coefficients are used to represent the number of molecules or moles of a substance in a chemical equation. By adjusting these coefficients, you can balance the equation by making the number of atoms of each element the same on both sides.

However, you cannot change the subscripts within a chemical formula when balancing a reaction. The subscripts represent the number of atoms of each element within a molecule or formula unit and are fixed for a given compound. Changing the subscripts would result in a different compound with different properties.

In summary, when balancing a chemical reaction, you can only change the coefficients in front of the chemical formulas to achieve the balance of atoms on both sides of the equation.

know more about balancing a reaction click here;

https://brainly.com/question/12299665

There's approximately 15.8 g of NaOCl in a cup of bleach. To calculate this we need to use the molarity of the bleach solution and the molar mass of sodium hypochlorite.

In order to convert the molarity to mass, we need the molar mass of sodium hypochlorite. We can calculate it by adding up the relative atomic masses of sodium (23), oxygen (16), and chlorine (35.5):

M (NaOCl) = (23 + 16 + 35.5) g/mol = 74.5 g/mol

Now we calculate the amount (in moles) of sodium hypochlorite present in 250 mL (0.25 L) of bleach:

c = n/V ⇒ n = c*V = 0.850 M * 0.250 L = 0.2125 mol of NaOCl

Using the molar mass, we can now calculate the mass required:

n = m/M ⇒ m = n*M = 0.2125 mol * 74.5 g/mol = 15.8 g of NaOCl

You can learn more about molarity here:
brainly.com/question/2817451

#SPJ4

Answer:

It's the elements atomic mass and the number of neutrons and protons in an atom.

Explanation:

Methanol and sodium sulfate are byproducts of the saponification process. The by-products of methanol and sodium sulfate are produced during the saponification process. Removing these by-products during the saponification process is essential because they can be harmful. The following is a step-by-step explanation of how methanol and sodium sulfate by-products are separated from the final product:

Step 1: The first step is eliminating the soap molecules produced due to the saponification reaction. The soap molecules produced are dissolved in water and isolated.

Step 2: The remaining solution, methanol, and sodium sulfate, are treated. To remove the methanol by-product, the solution is put under distillation conditions. Methanol has a lower boiling point than water, so it will vaporize first, leaving the remaining solution behind.

Step 3: After removing the methanol, sodium sulfate is filtered out from the remaining solution. This is accomplished by adding water to the solution and boiling it. The water helps to dissolve the sodium sulfate, which can then be separated by filtration from the rest of the solution.

Step 4: The water is removed from the remaining solution, leaving pure soap as the final product behind.

In conclusion, methanol and sodium sulfate are separated from the final product during the steps of saponification. They are removed from the solution by distillation and filtration methods.

Learn more about saponification: Explain the process of saponification? https://brainly.com/question/2263502

#SPJ11

Answer:

Atoms

Explanation:

Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.

Answer:

A

Explanation:

In the scientific name limus polyphemus which the species is the classification group for polyphemus

In elements towards the right side of the periodic table, such as chlorine (Cl) or sulfur (S), a 3p electron would experience the greatest effective nuclear charge.

In the atom or ion with the greatest effective nuclear charge, a 3p electron would experience the highest attraction to the nucleus. Effective nuclear charge refers to the net positive charge experienced by an electron due to the attraction of the nucleus and the shielding effect of inner electrons. As we move across a period in the periodic table from left to right, the effective nuclear charge increases. This is because the number of protons in the nucleus increases, while the shielding effect remains relatively constant. Therefore, in elements towards the right side of the periodic table, such as chlorine (Cl) or sulfur (S), a 3p electron would experience the greatest effective nuclear charge.

To know more about effective nuclear charge visit:

https://brainly.com/question/30459409

#SPJ11

Answer:

c) Electrons are unequally shared

The nuclear equation of the beta decay of 39/17 Cl is as follows:

39/17 Cl → 39/18 Cl + 0/-1 e

A nuclear reaction is a process such as the fission of an atomic nucleus, or the fusion of one or more atomic nuclei and/or subatomic particles in which the number of protons and/or neutrons in a nucleus changes.

The reaction products may contain a different element or a different isotope of the same element due to this change.

A beta decay is a nuclear reaction in which a beta particle (electron or positron) is emitted. A beta particle is an energetic electron or positron produced as the result of a nuclear reaction or nuclear decay. A beta decay occurs as depicted below;

A/Z X → A/(Z + 1) X‘ + e

Where;

Therefore, if a 39/17 Cl undergoes beta decay, the nuclear reaction can be given as follows:

39/17 Cl → 39/18 Cl + 0/-1 e

Learn more about beta decay at: https://brainly.com/question/25455333

#SPJ1

Answer: a: 0.04

b: 0

c: x

d: x

e: x

f: 0.04

Explanation:

Answer:

Something that's interdisciplinary covers more than one field of study. If you take an interdisciplinary science and literature class, you might read a science fiction novel and then explore the scientific ideas behind it. ... Interdisciplinary means between fields, but they don't have to be unrelated disciplines.

Explanation:

hope this helps:)

Patient A would have a clear and normal biopsy, while Patient B  will never get to learn and differentiate between the various smells and they might refuse to visit any new environment.

To find the volume of a given piece of copper, we use the formula:\(V = \frac{m}{\rho}$$\)

where;

V = volume of the copper piece (in cm³)

m = mass of the copper piece (in g)

ρ = density of copper (8.96 g/cm³)

Given that the mass of copper is 54.0 g, we can compute the volume as follows:

V = \frac{m}{\rho} \)

\(= \frac{54.0}{8.96} \approx 6.02 \ cm^3$$

Therefore, the volume of the copper piece is approximately 6.02 cm³.Next, let us determine the least measure of the micrometer used in the lab.

The least count or least measure of the micrometer is the smallest reading that can be taken from the instrument. It is usually given by the manufacturer.In the absence of any information, we can estimate the least count of the micrometer by finding the distance moved by the screw per division on the circular scale.

To do this, we use the formula:

\(Least\ count = \frac{Pitch\ of\ screw}{Number\ of\ divisions\ on\ circular\ scale}$$\)

The pitch of the screw is usually given by the manufacturer. Suppose the pitch is 0.5 mm, and the number of divisions on the circular scale is 50. Then, the least count of the micrometer is:

$$Least\ count = \frac{0.5}{50} = 0.01 \ mm$$

Therefore, the least measure of the micrometer used in the lab is approximately 0.01 mm.

To know more about volume visit:

https://brainly.com/question/28058531

#SPJ11

Answer:

Possibly molar.

Explanation:

It depends on the context in which it is used.  If it appears as 1.52m, it likely means 1.52 Molar, or 1.52M.  Molar is defined as moles/liter.  It is usually capitalized, but I've increasingly seen it appearing as a small "m."  The letter "n" typically means actual moles of a substance.  If the letter m appears as part of an equation, it should be defined at that point, or in the previous paragraphs.

Answer:

H20

Explanation:

Explanation:

1. Attachment

Electron dot structure of H2S (hydrogen sulfide)

2. Attachment

Electron dot structure of F2 (Fluorine).

Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\\)

From the question we have

\(density = \frac{2.06}{3.10} \\ = 0.664516..\)

We have the final answer as

Hope this helps you

Answer:

118 elements have been discovered so far

Explanation: