Rank the ions in each set in order of increasing size, and explain your ranking:
(b) Se²⁻, Rb⁺, Br⁻

we should take out from point

First, we need to make the exponent of 10 the same for both.

So let's transform 6.5500 x 10^5 into some number x 10^3.

For this, we need to move the dot to the right, some places where it gives the number 3. In this case, 2 places.

655.00 x 10^3

now we can sum the numbers

8.6500 x 10^3 + 655.00 x 10^3 = 663.65 x 10^3

now we need to transform this number into scientific notation. For this, must have only one number before the dot(on the left side of the dot). We will move the dot to the left, 2 places:

6.6365 x 10^5

Answer: 6.6365 x 10^5

A redox reaction is a chemical reaction in which one or more of the reacting species undergoes oxidation and one or more undergoes reduction. An oxidizing agent is an element or compound that oxidizes another substance, while a reducing agent is an element or compound that reduces another substance.

For such more question on oxidizes

https://brainly.com/question/14041413

#SPJ8

Let look at EC of Sodium(Na)

\(\\ \sf\longmapsto 1s^22s^22p^63s^1\)

Now look at EC of Fluorine

\(\\ \sf\longmapsto 1s^22s^22p^5\)

Now the Compound will be

\(\\ \sf\longmapsto NaF\)

Answer:

we're terrible at keeping the earth clean and we know that lol

Explanation:

idrk

Humans should be concerned about the rising extinction rate as this accelerated rate prevents ecosystems from recovering or other species from filling voids in the food chain.

Extinction is the final phase of a sort of creature or a taxon—typically a species. Although the ability to reproduce and bounce back may have been lost earlier, the death of the last member of the species is typically considered to have been the moment of extinction.

Determining this point is challenging because a species' dynamic value may be quite wide, and is typically done after the fact. Due to this problem, there are phenomena like Lazarus taxa, in which a species that was thought to be extinct suddenly "reappears" after a duration of apparent absence. If extinction is a normal part of ecosystems, and mass extinctions have happened before, humans should be concerned about the rising extinction rate as this accelerated rate prevents ecosystems from recovering or other species from filling voids in the food chain.

Therefore, humans should be concerned about the rising extinction rate as this accelerated rate prevents ecosystems from recovering or other species from filling voids in the food chain.

To know more about extinction, here:

https://brainly.com/question/11872946

#SPJ7

Answer:

16

Explanation:

you can line up the fareinheit and celsius and see that the celsius is 16

Answer:

15 and 290 for the first question, if it drops 30 it will get to be 30 f, -0 c and 273 k

HAve a wonderful day!

Answer:

2nd one

Explanation:

Fact!

Answer:

just replace the 9 mole with 3.68 g of Al .

I think it will help you.

The balanced equation for the reaction is:

2H2 + O2 -> 2H2O

From the balanced equation, we can see that for every 1 mole of oxygen (O2), we need 2 moles of hydrogen (H2) to react and produce 2 moles of water (H2O).

Given that you start with 6.0 moles of oxygen and 4.0 moles of hydrogen, we need to determine the limiting reactant, which is the reactant that will be completely consumed first and determines the maximum amount of product that can be formed.

To find the limiting reactant, we compare the moles of each reactant to the stoichiometric ratio in the balanced equation.

For oxygen (O2):

Moles of O2 = 6.0 moles

For hydrogen (H2):

Moles of H2 = 4.0 moles

Moles of H2 needed = 2 * Moles of O2 = 2 * 6.0 moles = 12.0 moles

Since we have 4.0 moles of hydrogen, which is less than the required 12.0 moles, hydrogen is the limiting reactant.

The balanced equation tells us that 2 moles of water are formed for every 2 moles of hydrogen. Therefore, the number of moles of water produced will be equal to the number of moles of hydrogen.

Moles of water produced = 4.0 moles

Therefore, you will produce 4.0 moles of water.

Learn more about Moles here -: brainly.com/question/22812748

#SPJ11

Answer:

Explanation:

A. Graphite can conduct electricity because of the delocalised (free) electrons in its structure. These arise because each carbon atom is only bonded to 3 other carbon atoms. ... However, in diamond, all 4 outer electrons on each carbon atom are used in covalent bonding, so there are no delocalised electrons.

B. Diamond is hard because the carbon atoms in diamond are bonded in a stronger tetrahedron pattern but graphite is soft and slippery because the carbon atoms in graphite are bonded in layers with only weak vanderwall force holding the layers together.

Answer:

The current location of the North Magnetic Pole is in the Arctic Ocean, near the coast of northern Canada, specifically in the region of northern Quebec and Ellesmere Island in the Canadian Arctic Archipelago.

Explanation:

However, it's important to note that the North Magnetic Pole is not a fixed point on the Earth's surface, but it is instead constantly moving. The North Magnetic Pole is moving away from Canada and towards Siberia at a rate of about 55 km (34 miles) per year. This movement is caused by changes in the Earth's magnetic field and is known as the "wandering" of the magnetic poles. The exact location of the North Magnetic Pole can be determined by regular measurements and it is used as a reference point for navigation.

Answer:

2.5e-5

Explanation:

Answer:

2 electrons

Explanation:

every s sublevel can only be occupied by 2 electrons so a filled 6s sublevel would have 2 electrons

The ratio of octene to oxygen is 1:12.

To determine the ratio of octene (C8H16) to oxygen (O2) in the given reaction, we need to examine the balanced chemical equation. However, the equation you provided does not seem to be balanced. The coefficients for each compound must be determined to achieve a balanced equation before we can calculate the desired ratio.

Assuming you meant the combustion reaction of octene, a balanced equation would be:

C8H16 + 12O2 → 8CO2 + 8H2O

From the balanced equation, we can see that for every 1 mole of octene (C8H16), we require 12 moles of oxygen (O2) to completely react.

This means that for every 1 mole of octene, we need 12 moles of oxygen to fully combust the octene and produce the corresponding amounts of carbon dioxide (CO2) and water (H2O) as shown in the balanced equation.

For such more questions on combustion

https://brainly.com/question/13251946

#SPJ8

The balloon's new volume is 24.6L. An arctic weather balloon being inflated using 24.6 litres of helium gas in a prep shed. The shed is seven degrees Celsius inside.

When the balloon is hauled outside, it is seven degrees Celsius outside. Any three-dimensional solid's volume is equal to how much room it occupies. One of these solids can be a cube, a cuboid, a cone, a cylinder, or a sphere. Chemical compounds are composed of a large number of comparable molecules (or molecular entities), which are composed of atoms from various elements bonded together by chemical bonds. Because of this, a molecule composed of atoms from a single element is not a compound.

v1/t1 = v2/t2

24.6/7 = v2/7

v2 = 24.6L

v1 = v2

Learn more about helium gas here

https://brainly.com/question/26408362

#SPJ4

Hello Mistyann!

First you need to know amount of barium phosphate is

Half of potassium phosphate, also 2.18 mol.

Molar mass of Barium phosphate is 3·137.2 + 2·(30.97+4·16) g/mol

You can calculate it yourself dear.

Now mass is amount of substance · molar mass.

It has been an honour to teach you, dear,

God bless!

The experiment used to discover the electron was J.J. Thomson's Cathode Ray Tube Experiment.

To learn more about Cathode Ray Tube Experiment refer to:

https://brainly.com/question/9177595

#SPJ4

Answer:

the answer is c I just took the test

Answer:

counting the number of “groups” of electrons around the atom

Explanation:

=>

Answer:

iii. 3 moles of A react with 2 moles of B to form 1 mole of A 3B 2

Explanation:

A + 2 B → A 3B 2

A chemical equation among other things, gives the stoichiometry of the reaction; that is the relationship between reactants and products.

This relationship is basically stated in moles form the coefficients of the reactants and product.

From the reaction above, we can say;

1 mol of A reacts with 2 mol of B to form 1 mol of A3B2

It cannot be grams because the reactants and products all have different molar masses.

The correct interpretation of the equation of the hypothetical chemical reaction is; Choice (iii) 3 moles of A react with 2 moles of B to form 1 mole of A 3B 2.

Definition:

Chemical equations are equations that make use of chemical formulae and symbols to represent chemical reactions. The left-hand side of a chemical equation represents the reactants and the right-hand side represents the products.

Each reacting entity is also assigned its corresponding stoichiometric coefficient.

However, this stoichiometric coefficient is to quantify the no. of moles of the reactants consumed or products formed as the case may be.

Read more:

https://brainly.com/question/12271256

The structure of the aromatic product is shown below: \(O=C-N-C_1=CH_2-C_2=C_3C_4=C(OH)C=C_3C=C_2 .\)

Aromatic molecules are a type of organic compound that contain carbon atoms connected by bonds known as double bonds. These molecules possess a distinct odor, or smell, and are known as aromatic compounds. They are often found in essential oils, perfumes, and food flavorings.

The reaction of a benzene ring with a hydroxy group on carbon 1 and an NH₂ on carbon 4 with one equivalent of acetic anhydride (which is an oxygen flanked by two carbonyls each bonded to a methyl group) produces an aromatic product. This product will be an amide, and it will have an oxygen double-bonded to a nitrogen, with the nitrogen also single-bonded to the carbon 4 of the benzene ring. The oxygen will also be single-bonded to the carbon 1 of the benzene ring. The two carbonyl groups of the acetic anhydride will each be single-bonded to a different carbon of the benzene ring.

To learn more about aromatic

https://brainly.com/question/30899828

#SPJ4

The moles of NaOH can be calculated using the formula:

moles = concentration (M) x volume (L)

First, convert the volume from milliliters to liters:

30.0 mL = 30.0 mL / 1000 mL/L = 0.03 L

Then, use the formula to calculate the moles:

moles = 3 M x 0.03 L = 0.09 moles

So, 0.09 moles of 3 M NaOH were used.

Answer:

The 1-kg ball accelerates twice as much as the 2-kg ball.

Explanation:

please add me as brainliest.....

The statement ''The number obtained by substituting starting reactant and product concentrations into an equilibrium-constant expression is known as the reaction quotient'' is True as the reaction quotient is the number obtained by plugging in the initial concentrations of reactants and products into the equilibrium constant expression.

The reaction quotient (Q) is used to determine whether a chemical reaction is at equilibrium or not. It is calculated by substituting the initial concentrations of the reactants and products into the equilibrium constant expression.

If the value of Q is less than the equilibrium constant (K), the reaction will proceed in the forward direction to reach equilibrium. If Q is greater than K, the reaction will proceed in the reverse direction.

And if Q is equal to K, the reaction is already at equilibrium. The reaction quotient is a useful tool in predicting the direction of a reaction and understanding the behavior of chemical equilibria.

For more questions like Reaction click the link below:

https://brainly.com/question/30086875

#SPJ11

Copper has the highest conductivity of any metal used in electronics. The statement is false.

Silver is the element that conducts electricity the best, followed by copper and gold.

The earth's most conductive metal is by far silver. Silver only has one valence electron, which explains this. This one electron can also go about freely and encounter little opposition. As a result, some of the metals with this particular property are silver and copper.

Silver is the metal with the highest thermal and electrical conductivity because of its distinctive crystal structure and lone valence electron.

Since copper is the non-precious metal with the highest conductivity, it has a higher electrical current carrying capacity than other non-precious metals. The strength of the metal rises when tin, magnesium, chromium, iron, or zirconium are added to copper to create alloys, but its conductivity decreases.

To know about electrical conductivity

https://brainly.com/question/13322537

#SPJ4

The hydrolysis of an imine or an enamine can produce the following:

B) Amine

C) Ketone

D) Aldehyde

An imine's or an enamine's hydrolysis is a reversible process. The amine and the carbonyl molecule (aldehyde or ketone) are the end products of the process. Acid or base is used to catalyze the process.

The mechanism of the reaction is as follows:

In organic chemistry, the hydrolysis of an imine or enamine is a typical reaction. It is used to make carbonyl compounds and amines.

Learn more about An imine's here : brainly.com/question/30089042

#SPJ4