I need help, plz help me with this problem

I Need Help, Plz Help Me With This Problem

Answers

Answer 1

Answer:

It's b

Explanation:

I had the same exact question


Related Questions

How do you balance C4H10 + Cl2 + O2 —> CO2 + CCl4 + H2O?

Answers

Answer:

4C4HO + 4Cl2 + 13O2 → 14CO2 + 2CCl4 + 2H2O

Explanation:

Balance The Equation: C4HO + Cl2 + O2 = CO2 + CCl4 + H2O

1. Label Each Compound With a Variable

  aC4HO + bCl2 + cO2 = dCO2 + fCCl4 + gH2O

2. Create a System of Equations, One Per Element

  C: 4a + 0b + 0c = 1d + 1f + 0g

  H: 1a + 0b + 0c = 0d + 0f + 2g

  O: 1a + 0b + 2c = 2d + 0f + 1g

  Cl: 0a + 2b + 0c = 0d + 4f + 0g

3. Solve For All Variables

  a = 4

  b = 4

  c = 13

  d = 14

  f = 2

  g = 2

4. Substitute and Verify Result

  4C4HO + 4Cl2 + 13O2 = 14CO2 + 2CCl4 + 2H2O

      L R

  C: 16 16 ✔️

  H: 4 4 ✔️

  O: 30 30 ✔️

  Cl: 8 8 ✔️

hope this helps! :D

2KClO3 —> 2KCl2+ 3O2
true if balanced or false if not
reaction type 1: synthesis, 2: decomposition, 3: single replacement, 4: double replacement, 5: combustion

Answers

Answer:

False. The balanced equation should be

2KClO3-->2KCl + 3O2

it is a decomposition reaction.

What is gadolinium

And what would be a superpower that relates to it

Answers

Answer:

Chemical with symbol Gd on periodic table of elements. It reacts with oxygen.

Fire superpower i guess

Explanation:

which of the following is a characteristic of the modern periodic table

Answers

They are all radioactive

URGENT PLEASE HELP
What most likely happens when a sodium atom comes near an atom having seven valence electrons?

Answers

Answer:

7 Electrons

Explanation:

What it is fill its valence shell, it would need to acquire 7 electrons - a difficult task for a metal like sodium that is a known electron-loser. So unlike fluorine and oxygen, sodium acquires a full octet by losing electrons and emptying out its outermost shell.

The electron configuration of a cation with a 2+ charge is shown below.
1s22s22p63s23p6
What is the electron configuration for the ion's neutral parent atom? The atom is a main group
element. Name the group that the parent atom likely belongs to on the Periodic Table and identify
one chemical property of the parent atom.

Answers

The electron configuration for the ion's neutral parent atom is

1s²2s²2p⁶3s²3p⁶4s²

It belongs to group 2 on the periodic table and one of its chemical properties is, it has a density of 1.54 g/cm³

From the question,

The cation has a charge of 2+. This means the neutral atom lost 2 electrons.

From the given electron configuration, the cation has 18 electrons.

Therefore, the neutral atom of ion will have 20 electrons.

∴ The electron configuration for the ion's neutral parent atom is

1s²2s²2p⁶3s²3p⁶4s²

The atom belongs to group 2 on the periodic table.

One chemical property of the parent atom

Its density is 1.54 g/cm³

Hence,  The electron configuration for the ion's neutral parent atom is

1s²2s²2p⁶3s²3p⁶4s²

It belongs to group 2 on the periodic table and one of its chemical properties is, it has a density of 1.54 g/cm³

Learn more here: https://brainly.com/question/6762908

Help!! I’ll mark you Brainliest.!

Answers

Answer:

For 5 pts? gimme that

Explanation:

Answer:

Explanation:

if you know what those phrases mean, then you can look them up and draw those pictures you find, as well as add the definition of each.

1 point
A system that absorbs energy from its surroundings is said to be: *

Answers

Answer: Exothermic.

Explanation:

Exo means “outside” and the outside relates to surroundings so it’s my best choice.

Answer:

endothermic is the answer

The electron-domain geometry of a sulfur-centered compound is trigonal bipyramidal. The hybridization of the central sulfur atom is ________.

Answers

The hybridization state of the central sulfur atom is sp3d.

The valence shell electron pair repulsion theory describes the shape of molecules in terms of the number of electron pairs that surround the valence shell of the central atom in the molecule.

There are certain molecular shapes that are associated with certain hybridization states of the central atom. Since the central sulfur atom is trigonal bipyramidal, the hybridization state is sp3d.

Learn more: https://brainly.com/question/13978941

What are some advantages to the use of hydrokinetic energy? What might be some disadvantages?.

Answers

Hydro-kinetic energy has advantages of being a clean, domestic, and renewable source with effective production. The disadvantages have been affected marine environment, along with water quality, and electricity on drought.

Hydro kinetic energy has been the energy produced by the movement of water bodies in the form of tides, waves, and oceanic current. The hydro-kinetic energy has been composed with high energy entrapped in the water bodies.

Some of the advantages of hydro-kinetic energy has been:

It has been a clean energy source and has been  pollution free.It has been used as domestic source of energy.It has been a renewable source of energy.It has been produced by the tidal waves, thus can be produced effective and in need.

Some of the disadvantages of hydro-kinetic energy has been:

Application of water bodies affects the marine environment.It has been producing low BOD and thereby affects the water quality.Conditions such as drought result in the affected electricity production.

For more information about hydro-kinetic energy, refer to the link:

https://brainly.com/question/13120577

Answer:

Some advantages to using hydrokinetic energy are that it can be used without mining materials, it is not associated with waste production, and that it does not contribute to air pollution. The main disadvantage to using hydrokinetic energy is the fact that it uses waves and tides as an energy source. This technology could not be used in all locations.

Explanation:

got it on edge sorry for the late response

Note the mass of copper(1) oxide formula unit 143.091 what is the mass of 8.250 moles of Cu2O

Answers

Answer:

The mass of 8.250 moles of Cu2O is 1180.5g

Explanation:

HOW TO CALCULATE MASS OF A SUBSTANCE:

The mass of a substance can be calculated by multiplying the number of moles in the substance by its molar mass as follows:

Mass (g) = no. of moles (mol) × molar mass (g/mol)

Molar mass of copper (I) oxide (Cu2O) = 63.5(2) + 16 = 143.09 g/mol

Mass of Cu2O = 8.250 mol × 143.09 g/mol

Mass of Cu2O = 1180.5 g

Therefore, the mass of 8.250 moles of Cu2O is 1180.5 g.

250 mL of argon gas is held in a flexible vessel shown above. If
the pressure changes to 12.0 atm, what is the new volume of
the gas at 20°C?

Answers

The new volume of the gas at 20 °C is 205 mL

From the question given above, the following data were obtained:

Initial volume (V₁) = 250 mL Initial pressure (P₁) = 10 atmInitial temperature (T₁) = 25 °C = 25 + 273 = 298 KNew pressure (P₂) = 12 atmNew temperature (T₂) = 20 °C = 20 + 273 = 293 KNew volume (V₂) =?

With the application of the combine gas equation, we can obtain the new volume of the gas as illustrated below:

[tex]\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2} \\ \\ \frac{10 \times 250}{298} = \frac{12 \times V_2}{293} \\ \\ \frac{2500}{298} = \frac{12 \times V_2}{293} \\ \\ cross \: multiply \\ \\ 298 \times 12 \times V_2 = 2500 \times 293 \\ \\ divide \: both \: side \: by \: 298 \times 12 \\ \\ V_2 = \frac{2500 \times 293}{298 \times 12} \\ \\ V_2 = 205 \: mL \\ [/tex]

Therefore, the new volume of the gas is 205 mL

Learn more about gas laws: https://brainly.com/question/6844441

The new volume of the gas at the given pressure and temperature is 205 mL.

The given parameters:

Initial volume of argon, V₁ = 250 mLInitial pressure of gas, P₁ = 10 atmFinal pressure of the gas, P₂ = 12 atmInitial temperature of the gas, T₁ = 25 ⁰C = 273 + 25 = 298 KFinal temperature of the gas, T₂ = 20 ⁰C = 273 + 20 = 293 K

The new volume of the gas is calculated by applying general gas equation as follows;

[tex]\frac{V_1 P_1}{T_1} = \frac{V_2P_2}{T_2} \\\\V_2 = \frac{V_1P_1 T_2}{T_1P_2} \\\\V_2 = \frac{(250\ mL) \times 10 \times 293}{298 \times 12} \\\\V_2 = 204.84 \ mL\\\\v_2 = 205 \ mL[/tex]

Thus, the new volume of the gas at the given pressure and temperature is 205 mL.

Learn more about general gas equation here:

1.The two green substances are not same thing because some of their properties are different and some of them are the same. If they were the same substance, all of their properties would have to be the same.

How could the explanation be improved?

Answers

Answer:

Even though the two substances possess many similarities, they have some unique properties. In turn, since they have the same properties, if they were the same substance, it would make matters worse, if the same chemical was in two different places, there would not be a difference between them since they are the same, just as it is with are two different chemicals would have differing properties since they are two properties would vary from one another since they are 2 totally different things!

Explanation:

Given the speed of light as 3.00 x 10° m/s, calculate the
wavelength of the electromagnetic radiation whose frequency
is 9.500 x 101° Hz.

Answers

Answer:

the answer is mabye 30 I didnt understand

which properties are affected by temperature?

Answers

Answer:

Please give Brainliest!

Explanation:

Material properties are dependent on the temperature. The tensile strength, yield strength and modules of elasticity decrease with increasing temperature. It should be expected that fatigue properties are also affected by the temperature.

An elephant takes a deep breath, releasing 9.50g of CO2. How many molecules CO2 is this?

Answers

Answer:

3 significant figures.

Explanation:

So, a mole is essentially a group of things. In this case, a mole of carbon dioxide will contain

6.022 ⋅ 10 [ by the 23rd power]

molecules of carbon dioxide. In other words, in order to have

1 molecule  of carbon dioxide, you need to have 6.022 ⋅ 10 [by the 23rd power] molecules of carbon dioxide.

You know that 5.00 ⋅ 10 [ by the 2nd power]  molecules of carbon dioxide are exhaled from the lungs when we breathe out. You can use Avogadro's constant as a conversion factor to help you figure out how many molecules are present.

All three types of rock form in which earth layer?

Answers

Answer:

Lithosphere

Explanation:

All three types of rock make up the Earth's lithosphere, the outermost layer. The lithosphere averages about 100 kilometers in thickness.

How do vascular plants get the water and minerals they need to live?

Answers

through de' la' dasini

The chemical equation below shows the burning of magnesium (Mg) with oxygen (O2) to form magnesium oxide (MgO). 2Mg O2 Right arrow. 2MgO The molar mass of O2 is 32. 0 g/mol. What mass, in grams, of O2 is required to react completely with 4. 00 mol of Mg? 2. 00 64. 0 128 256.

Answers

Answer:

is the hoodie oh ok with that being a good day to be a good time with my friends and I have exam next to me that I am a very happy to be the best of the day

and

he is the best way possible for me

The mass of oxygen required for complete utilization of 4 mol of Mg has been 64 g. Thus, option B is correct.

The balanced equation for the reaction has been:

[tex]\rm 2\;Mg\;+\;O_2\;\rightarrow\;2\;MgO[/tex]

From the balanced chemical equation, for complete utilization of 2 moles of Mg, 1 moles of oxygen has been used.

The given moles of Mg has been 4 mol. The moles of oxygen required can be given as:

[tex]\rm 2\;mol\;Mg=1\;mol\;O_2\\4\;mol\;Mg=2\;mol\;O_2[/tex]

Thus, the moles of oxygen required has been 2 mol for complete utilization of 4 mol Mg.

The mass from moles can be calculated as:

[tex]\rm Mass=Moles\;\times\;molecular\;mass[/tex]

The molecular mass of oxygen has been 32 g/mol.

The mass of oxygen has been:

[tex]\rm Mass=2\;\times\;32\;g\\Mass=64\;g[/tex]

The mass of oxygen required for complete utilization of 4 mol of Mg has been 64 g. Thus, option B is correct.

For more information about the chemical equation,refer to the link:

https://brainly.com/question/20492533

AHHHH HELP IM TIMEd!!!!! WILL BRAINLIEST

Answers

Answer:

211.0

Explanation:

∆G(free energy) = ∆H(enthalpy) - T∆S(entropy)

∆H = 215KJ/mol

T = 90°C = 273 + 90

= 363K

∆S = 11J/mol/K or 11 × 10^-3kJ/mol/K

∆G = 215- 363(11 × 10^-3)

= 215 - 3.993

= 211.007

To the nearest tenth 211.0

which of the following contains a covalent bond?
A) BeO
B) LiCI
C) CN
D) MgO

Answers

Answer= C) CN contains a covalent bond.

The boiling points of different substances are given in the table below. Substance Boiling point (°C) Acetic acid 118. 1 Benzene 80. 2 Chloroform 61. 2 Water 100. 0 Which substance most likely has the strongest intermolecular forces? acetic acid benzene chloroform water.

Answers

The compound with the presence of higher inter-molecular forces has been Acetic acid. Thus, option A is correct.

The boiling point has been the temperature, at which the liquid has been started to convert to steam. The boiling has been mediated with the application of the energy to the substance for the breaking of the inter-molecular forces.

The higher the inter-molecular forces in the compound, the higher will be the boiling point of the compound. The higher concentration has also resulted in a higher boiling point.

In the following compounds, acetic acid has the highest boiling point of 118 degrees Celsius. Thus, it has been constituted of the higher inter-molecular forces. Hence, option A is correct.

For more information about boiling point, refer to the link:

https://brainly.com/question/2153588

Who ever gets it right first I will give brainly and 20 points. Have a very merry christmas

Answers

Answer: It is conserved.

Explanation: When the box is pushed across the floor, then floor and box becomes warm which resembles the condition of conservation of energy.

The given problem can be resolved by the concept of energy conservation. The statement of energy conservation says that, "Energy is neither be created nor be destroyed, but it is converted from one form to another.

In the given problem, the person pushes the box across the floor, such that the mechanical energy from the moving arms of person is transferred to the box, and the box and floor becomes warm.

During this process, the energy from the person moving arm is transferred to the box in the form of kinetic energy. And thus kinetic energy is then being transferred to thermal energy or heat energy, due to which the box and floor becomes warm.

Thus, we can conclude that the given case reflects the process of transformation of energy from one state to another, which highlights that during the process, energy is conserved.

fe3(so4)3->fe(oh)3->fe2o3->fe->feso4->fecl2

Answers

Answer: Id answer it but i think your copy and paste got corrupted!

Explanation:

28) what is the number of oxygen atoms in the formula unit of Ca3(PO4)2?​

Answers

Answer:

4.816x10²⁴atoms

Explanation:

the number of moles of oxygen is 8

let x be number of oxygen atoms

recall that 1 mole=6.02x10^23 atoms

therefore, 8 moles =x

cross multiply

8 x 6.02 x 10^23 = x

x = 4.816 x 10²⁴atoms

I get it! Now I know that an organism's traits
are controlled by ____________

Answers

Answer:

Genes mainly, however the environment as well

Explanation:

1. Why do you think the map is labeled "Three Sisters”?

also, i know this isn’t chemistry but i couldn’t find Earth Science so don’t come for me . i would appreciate it if y’all could help me the best you can!

Answers

Answer:

It's called the “The Three Sisters” because it comes from an Iroquois legend. The Legend says corn, beans and squash are inseparable sisters that were given to the people by the “Great Spirit.” It is important to note, however, that the “Three sisters” are also found in many other areas and tribes around North America.

it was observed that magnesium sulphate was present in tap water ,which hardness might that be​

Answers

Answer:

Calcium sulphate is the right answer for this question.

It is because calcium sulphate helps to obtain the hardness in water. hardness.

The presence of this resource is a main reason for permanent hardness.

Hard drinking water has moderate health benefits, but can pose serious problems for the industrial settings.

Explanation:


Help this is due today!!!

Answers

Answer:

a) Fe

b) Fe

c) Fe

Explanation:

When using their stoichiometric ratios, in all of the the iron will run out before the oxygen, making the iron the limiting reactant.

Can someone help me please

Answers

Answer: The correct pairs of elements likely to form ionic compounds are, potassium and sulfur, magnesium and chlorine. The answer is argon please give me brainlist

Explanation:

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