Which is the larger atom S or K

Answer:

liquefaction

liquefaction is a process when a something turns into a liquid.

Explanation:

When dissolved in water, most Group 1 metal salts can be described as strong electrolytes.

When Group 1 metal salts are dissolved in water, they can be described as strong electrolytes. This is because Group 1 metals, such as lithium (Li), sodium (Na), potassium (K), and so on, readily lose their outermost valence electron to form positive ions (cations). These cations then dissociate completely in water, separating from the anions to which they were originally bonded.

The dissociation of Group 1 metal salts in water results in the formation of positively charged metal ions and negatively charged non-metal ions (anions). These ions are free to move and conduct electric current, making the solution a good conductor of electricity. The complete dissociation of Group 1 metal salts in water and the presence of freely moving ions make them strong electrolytes.

Strong electrolytes are substances that ionize completely or almost completely in solution, producing a high concentration of ions. This is in contrast to weak electrolytes, which only partially ionize and produce a lower concentration of ions.

In summary, when Group 1 metal salts are dissolved in water, they form strong electrolytes due to their ability to dissociate completely into ions, leading to a high concentration of freely moving ions in the solution, thus enabling efficient electrical conductivity.

Know more about Group 1 metal salts here:

https://brainly.com/question/13277375

#SPJ8

2H2 + O2 → 2H2O

From the balanced equation, we can see that :

- 1 mole of O2 gives : 2 mole H2O

- x mole O2 will give : 3.8 moles H2O.....(cross multiply)

∴ number of moles of oxygen required to give 3.8 moles of H2O

= 1/2 * 3.8 = x moles of O2

x = 1.9 moles

• This means that ,1.9moles of Oxygen ,will be needed to yield 3.8 moles of water.

Answer:

T₂ = 39.4 °K

Explanation:

Because you are only dealing with volume and temperature, you can use Charles' Law to find the missing value. The formula looks like this:

V₁ / T₁ = V₂ / T₂

In this formula, "V₁" and T₁" represent the initial volume and temperature. "V₂" and "T₂" represent the final volume and temperature. You have been given values for all of the variables except for "T₂". Therefore, by plugging these values into the formula, you can simplify to find the answer.

V₁ = 350 mL                     T₁ = 45 °K

V₂ = 400 mL                     T₂ = ?

V₁ / T₁ = V₂ / T₂                                        <----- Charles' Law formula

(350 mL)(45 °K) = (400 mL)T₂                <----- Insert values into variables

15750 = (400 mL)T₂                                <----- Multiply left side

39.4 = T₂                                                 <----- Divide both sides by 400

Answer: 89.4 kJ

Explanation:

The production of iron and carbon dioxide from iron oxide and carbon monoxide is an exothermic reaction. which expression can you use to find how many kilojoules of heat are produced when 3.40 mol Fe₂O₃ reacts with an excess of CO? ΔH = +26.3 kJ The amount of heat produced will be, 89.4 kJ

Hope this helps :D

The production of iron and carbon dioxide from iron oxide and carbon monoxide is an exothermic reaction.

Which expression can you use to find how many kilojoules of heat are produced when 3.40 mol Fe₂O₃ reacts with an excess of CO. ΔH = +26.3 kJ The amount of heat produced will be, 89.4 kJ.

Chemical reactions with a negative H are known as exothermic reactions because they generate heat. Exothermic processes include those that include neutralization, the Haber process, thermite, and combustion.

An endothermic reaction is the opposite of an exothermic process. Endothermic reactions generate less heat than they take in from their surroundings. Exergonic and endergonic reactions are subtypes of exothermic and endothermic reactions, respectively.

Therefore, The production of iron and carbon dioxide from iron oxide and carbon monoxide is an exothermic reaction.

To learn more about Endothermic reactions, refer to the link:

https://brainly.com/question/23184814

#SPJ1

Answer:

c

Explanation:

metamorphic rocks

Answer:

C. Metamorphic

Explanation:

Answer:

Nitrogen is the answer my good sir.

Explanation:

✅(D) a molecular solid. These compounds have low melting points, low electrical conductivity, etc, so this is the correct answer.

IamSugarBee

the answer is that it is a

Answer:

C

Explanation:

Answer:

Sugar is a polar compound , in the solid state of it Hydrogen bond strongly binds the molicules of sugar together. Being a non polar solvent and low polarity difference between Cl and C atom C—Cl bond in CCl4 is unable to form hydrogen bond. That's why sugar can't be soluble in CCl4.

Explanation:

Answer:

\({ \boxed{ \bf{newtons \: law \: of \: gravitation}}} \)

It states that the product of masses of bodies ( planets and satellites and asteroids ) in space is inversely proportional to square of their separation mean distance

\({ \tt{formular : F = \frac{GMm}{ {r}^{2} } }}\)

Answer:

0.583 kilojoules

Explanation:

The amount of heat required to pop a single kernel can be calculated using the formula as follows:

Q = m × c × ∆T

Where;

Q = amount of heat (J)

m = mass of water (g)

c = specific heat capacity of water (4.184 J/g°C)

∆T = change in temperature

From the given information, m = 0.905 g, initial temperature (room temperature) = 21°C , final temperature = 175°C, Q = ?

Q = m × c × ∆T

Q = 0.905 × 4.184 × (175°C - 21°C)

Q = 3.786 × 154

Q = 583.044 Joules

In kilojoules i.e. we divide by 1000, the amount of heat is:

= 583.04/1000

= 0.583 kilojoules

The molar mass of 2.62 mol of iron(III) sulfate is 1050.8 g.

Thus, the molar mass of iron(III) sulfate can be calculated by summing the atomic masses of its constituent atoms. The molar mass of a compound is the sum of the atomic masses of all the atoms present in a chemical formula of the compound which is then multiplied by the number of atoms of each element in the formula.

In iron(III) sulfate, the atomic mass of iron will be 111.70 g/mol. The atomic masses of Sulphur and oxygen will be 96.18 g/mol and 192.0 g/mol, respectively. Adding atomic masses of its constituent atoms will be 400.88 g/mol. Therefore, the molar mass of 2.62 mol of iron(III) sulfate is 1050.8 g.

Learn more about the molar mass here:

https://brainly.com/question/17067547

#SPJ1

Answer:

Variability refers to how spread scores are in a distribution out; that is, it refers to the amount of spread of the scores around the mean. For example, distributions with the same mean can have different amounts of variability or dispersion. idk the rest of them

Explanation:

Answer:

\(0.3456\ \text{M}\)

Explanation:

\(V_1\) = Volume of NaOH = 34.56 mL

\(V_2\) = Volume of HCl = 25 mL

\(M_1\) = Concentration of NaOH = 0.25 M

\(M_2\) = Concentration of HCl

When endpoint is reached the number of moles of NaOH will be equal to the number of moles of HCl

\(M_1V_1=M_2V_2\\\Rightarrow M_2=\dfrac{M_1V_1}{V_2}\\\Rightarrow M_2=\dfrac{0.25\times 34.56}{25}\\\Rightarrow M_2=0.3456\ \text{M}\)

Concentration of HCl is \(0.3456\ \text{M}\).

Answer: "Three Electrons Are Gained"(N⁻³)

Nitrogen has an Incomplete Octet With an Electronic Configuration of

1S²2S²2P³

The P orbital takes a Maximum of 6 electrons.

When this shell is filled... The electronic Configuration of Neon is obtained.

1S²2S²2P⁶

This is also know as the Nitride Ion (N⁻³).

Answer:

D

Explanation:

took the test

The  typical sequence of events in the scientific method is to define question , make prediction, collect data, analyze data, Experiment, test hypothesis, draw conclusion , report result.

the following are the steps in the scientific method :

1) first step to define a question for the investigation.

2) Then make prediction : do some research related to the question and the study related theories.

3)collect the data : collect all the data from the research .

4) analyze the data

5) experiments : perform the experiments

6) test the hypothesis: accept or reject hypothesis.

7) draw the conclusion

8) report your result.

Thus , The  typical sequence of events in the scientific method is to define question , make prediction, collect data, analyze data, experiments , test hypothesis, draw conclusion , report result.

To learn more about scientific data here

https://brainly.com/question/7508826

#SPJ1

Sodium carbonate, often referred to as Na2CO3, is a chemical compound composed of atoms of sodium (Na), carbon (C) and oxygen (O).

It is also sometimes called washing soda or soda ash. At room temperature, sodium carbonate is a white, crystalline solid that is very soluble in water. According to the chemical formula of the sodium carbonate molecule, Na2CO3, each molecule consists of two sodium atoms (Na), one carbon atom (C) and three oxygen atoms (O). The atomic configuration in sodium carbonate is shown in the given diagram.

A trigonal planar arrangement is formed when the central carbon atom is bonded to three oxygen atoms. The structure of sodium carbonate is completed by two sodium atoms joined to oxygen atoms.

Learn more about Sodium carbonate, here:

https://brainly.com/question/31422792

#SPJ1

The one that best describes the process represented  that takes place when NH₃ is added to water is the correct option is d.  NH₃  is acts as a Bronsted lowry base.

The chemical reaction is :

NH₃(aq)  +   H₂O(l)   ---->   NH₄⁺(aq)     +    OH⁻(aq)

Base          Acid            conjugate acid      conjugated base

In the above reaction the ammonia that is NH₃ acts as a base when it dissolve in the water because when it dissolve in water it produces the OH⁻ that is responsible for the pH in the solution. NH₃ is the Bronsted Lowry base as it accepts the protons that is donated by the   H₂O and form the NH₄⁺ ion which is a conjugate acid of the  NH₃ .

This question is incomplete the complete question is :

NH₃(aq)  +   H₂O(l)   ---->   NH₄⁺(aq)   +  OH⁻(aq)

which of the following best describes the process represented above that takes place when NH₃ is added to water?

a. Water is acts as an conjugated acid

b. There is more NH₃ than  H₂O

c.  NH₃  does not react with water

d.  NH₃  is acts as as Bronsted lowry base

To learn more about  NH₃ here

https://brainly.com/question/29298785

#SPJ4

The partial pressure of nitrogen on Venus is approximately 321.914 kPa.

To find the partial pressure of nitrogen on Venus, we need to calculate the partial pressure using the mole fraction of nitrogen and the total atmospheric pressure. First, we convert the total atmospheric pressure from psi to kilopascals (kPa) since the mole fraction is given in terms of kPa.

1 psi = 6.89476 kPa

Therefore, the total atmospheric pressure on Venus is:

1334 psi × 6.89476 kPa/psi = 9197.53 kPa

Next, we can calculate the partial pressure of nitrogen using the mole fraction. The mole fraction of nitrogen is given as 0.035, which means that nitrogen makes up 3.5% of the total moles of gas in the atmosphere.

The partial pressure of nitrogen is given by:

Partial pressure of nitrogen = Mole fraction of nitrogen × Total atmospheric pressure

Partial pressure of nitrogen = 0.035 × 9197.53 kPa

Partial pressure of nitrogen = 321.914 kPa

Therefore, the partial pressure of nitrogen on Venus is approximately 321.914 kPa.

It's important to note that the given atmospheric composition of Venus's atmosphere and the total atmospheric pressure are approximate values and can vary depending on specific conditions and measurements.

For more such question on partial pressure visit:

https://brainly.com/question/19813237

#SPJ8

Gold is the substance. A substance is any material that has physical qualities. The phrase can also refer to the essence or central concept of anything.

A substance is a material that has specific qualities and a specific composition. A substance is any unadulterated element or pure composite. By using any physical technique, a substance cannot be separated. A pure substance has fixed properties/composition.

Matter with a definite composition and set of characteristics is referred to as a substance. A substance is every pure element. It is a material when it is pure. Substance examples: Because iron is an element, it is also a substance. 

To know more about Substance visit:

https://brainly.com/question/24372098

#SPJ1

The variable "air pressure inside the football" in this experiment is quantitative and dependent variable. Hence, option D is correct.

The dependent variable is the variable that is being measured or tested in an experiment.

In the experiment, the scientist filled the footballs with fix quantity of pressure which was then kept for 12 hours. After 12 hours the pressure inside the footballs was again measured. Pressure here is a quantitative variable.

Since the air temperature is an independent variable. The pressure being the dependent variable depends upon the temperature of the air.

Independent variable; The variable which does not depends upon any other variable.

Dependent variable; The variable which depends upon the independent variable or varies with the change independent variable.

Qualitative variables are variables which cannot be expressed in form of numbers. They generally convey the characteristic, category, quality or type.

Whereas Quantitative variables are the variables which can be expressed in the form of numbers. These are the variables which exist along the continuous sequence.

Learn more about dependent variables here:

https://brainly.com/question/1479694

#SPJ1

Answer:

How do amoeba respire.

Define Diffusion.

Answer:

The number of molecules of water us 1.50× 10²⁵ molecules

Explanation:

From N=nL

where L =avogadro number ( 6.02× 10^²³ entities)

The number of the molecules of water =1

n (amount of substance)=25 moles

hence (N) = 25×1×6.02×10^²³

=1.50×10²⁵ molecules of H2O

Answer:

\(m_{O_2}=120gO_2\)

Explanation:

Hello!

In this case, since the decomposition of potassium chlorate is:

\(2KClO_3\rightarrow 2KCl+3O_2\)

We can see a 2:3 mole ratio between potassium chlorate and oxygen (molar mass 32.0 g/mol), thus, via stoichiometry, we compute the mass of oxygen that are produced by the decomposition of 2.50 moles of this reactant:

\(m_{O_2}=2.50molKClO_3*\frac{3molO_2}{2molKClO_3} *\frac{32.0gO_2}{1molO_2}\\\\m_{O_2}=120gO_2\)

Best regards!

HAZWOPER training and certification recognize:

The correct option is both A and C

HAZWOPER (Hazardous Waste Operations and Emergency Response) training and certification recognize that a large number of victims (as much as 80%) in hazardous waste incidents or emergencies will self-present or be self-referred for medical treatment.

Additionally, HAZWOPER training acknowledges that victims may use any entrance they can access at a hospital, not just the emergency department entrance.

This is because individuals affected by hazardous materials may arrive at different areas of the hospital seeking medical assistance.

Therefore, option d. Both A and C are correct statements regarding the recognition of HAZWOPER training and certification.

Learn more about HAZWOPER at: https://brainly.com/question/31561828

#SPJ1