John M.

Answer the following question based on the previously determined balanced chemical equation (H2O2--> 2H2O + O2) for the decomposition of hydrogen peroxide. Express your answer to two decimal... more

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Chemistry

04/08/20

Answer the following question based on the previously determined balanced chemical equation (H2O2--> 2H2O + O2)

Answer the following question based on the previously determined balanced chemical equation (H2O2--> 2H2O + O2) for the decomposition of hydrogen peroxide. Express your answer to two decimal... more

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Physical Science

03/28/19

Abbie pushes a vacuum cleaner 30m in 5 min using 40 N force. How much did she use?

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Answers •2

Organic Chemistry

03/27/19

What is isomerism and its types?

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Answers •1

Chemistry

03/19/19

During electron capture a proton is transformed into a neutron.

What are the changes in atomic mass and number during this reaction?

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Answers •1

Chemistry

03/18/19

What is the ionization constant at 25 ◦C for the weak acid CH3NH3 +, the conjugate acid of the weak base CH3NH2, Kb = 4.4 × 10−4 .

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Chemistry Chem

03/17/19

Which element is more metallic between Sn or As and why?

Which element is more metallic between Sn or As and why? I know metallic characteristics consist of low effective nuclear charge, low ionization energy, low electron affinity, and large size,... more

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Chemistry

03/14/19

An unknown element is found to contain 45 protons and an atomic mass of 64, what is its atomic number?

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Answers •3

Chemistry Physics

03/14/19

A laser generates a pulse at 450 nm containing 2.75 × 10^15 photons. What is the energy of the pulse?

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Answers •3

Chemistry

03/14/19

Calculate the number of moles of Cl atoms in 3.61×1024 formula units of magnesium chloride, MgCl2?

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Answers •3

Organic Chemistry

03/14/19

Which is an example of an organic compound?

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Answers •2

Chemistry

02/18/19

what is the pressure of the neon gas in its container?

A student has stored 100.0mL of neon gas over water on a day when the temperature is 27◦C. If the barometer in the room reads 753.4 mm Hg, what is the pressure of the neon gas in its container?... more

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Chemistry Chem

02/10/19

Which statements(s) is/are true?

van der Waals equation: (P + n2a/V2)(V - nb) = nRT where a and b are van der Waals constants. Textbook states: The constant a relates to the number and distribution of electrons, which relates to... more

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Chemistry Thermodynamics

01/15/19

Can someone help me with this question please?

CH4(g) + 2 O2(g) --> CO2(g) + 2 H2O(g) The value of ΔH° (heat of formation) is –802.4 kJ/mol. Can you explain quantitatively the origin of the difference between this value and -890.0 kJ/mol... more

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Chemistry

01/14/19

If the ratio of atoms in the reactants used does not equal the ratio of atoms in the equation, you will have a limiting reagent.

Please help me with this question. Is this true or false?

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Chemistry

12/11/18

Which ones will have a nonzero dipole moment?

CF4CH2Cl2CH2CH2GeHCl3

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Chemistry

12/10/18

C12H22O11(aq)+H2O(g)->4C2H5OH(l)+4CO2(g) Find the theoretical yield and the percent yields of ethanol if 680.g sucrose undergoes fermentation and 303.5g ethanol is obtained.

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Chemistry

12/09/18

What are the white fumes produced when ammonium hydroxide reacts with sulphuric acid ?

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Answers •2

Chemistry

09/28/18

The electromagnetis spetrum is useful on Earth but not in space

I need to know now

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Answers •1

Science

09/23/18

To test a depth of the well a person drops a rock down from the well the rock takes 2.9 seconds to hit the water bill out how deep is the well

Help me please

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Answers •1

Define solubility and describe the factors that affect solubility.

What is the importance of water?

n the reaction, Zn + 2 HCl  ZnCl2 + H2, 25.0 grams of Zn are reacted with 17.5 g of HCl. How many grams of H2 will be produced?

A proton is found outside a negative nucleus

Predict whether the reaction of equal amounts of each of the following acids and bases will yield an acidic, a basic, or a neutral solution. Explain your answer for each.

Answer the following question based on the previously determined balanced chemical equation (H2O2--> 2H2O + O2)

Answer the following question based on the previously determined balanced chemical equation (H2O2--> 2H2O + O2)

Abbie pushes a vacuum cleaner 30m in 5 min using 40 N force. How much did she use?

What is isomerism and its types?

During electron capture a proton is transformed into a neutron.

What is the ionization constant at 25 ◦C for the weak acid CH3NH3 +, the conjugate acid of the weak base CH3NH2, Kb = 4.4 × 10−4 .

Which element is more metallic between Sn or As and why?

An unknown element is found to contain 45 protons and an atomic mass of 64, what is its atomic number?

A laser generates a pulse at 450 nm containing 2.75 × 10^15 photons. What is the energy of the pulse?

Calculate the number of moles of Cl atoms in 3.61×1024 formula units of magnesium chloride, MgCl2?

Which is an example of an organic compound?

what is the pressure of the neon gas in its container?

Which statements(s) is/are true?

Can someone help me with this question please?

If the ratio of atoms in the reactants used does not equal the ratio of atoms in the equation, you will have a limiting reagent.

Which ones will have a nonzero dipole moment?

C12H22O11(aq)+H2O(g)->4C2H5OH(l)+4CO2(g) Find the theoretical yield and the percent yields of ethanol if 680.g sucrose undergoes fermentation and 303.5g ethanol is obtained.

What are the white fumes produced when ammonium hydroxide reacts with sulphuric acid ?

The electromagnetis spetrum is useful on Earth but not in space

To test a depth of the well a person drops a rock down from the well the rock takes 2.9 seconds to hit the water bill out how deep is the well

Still looking for help? Get the right answer, fast.

OR

John M.

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Emmersion

Define solubility and describe the factors that affect solubility.

What is the importance of water?

n the reaction, Zn + 2 HCl  ZnCl2 + H2, 25.0 grams of Zn are reacted with 17.5 g of HCl. How many grams of H2 will be produced?

A proton is found outside a negative nucleus

Predict whether the reaction of equal amounts of each of the following acids and bases will yield an acidic, a basic, or a neutral solution. Explain your answer for each.

Answer the following question based on the previously determined balanced chemical equation (H2O2--> 2H2O + O2)

Answer the following question based on the previously determined balanced chemical equation (H2O2--> 2H2O + O2)

Abbie pushes a vacuum cleaner 30m in 5 min using 40 N force. How much did she use?

What is isomerism and its types?

During electron capture a proton is transformed into a neutron.

What is the ionization constant at 25 ◦C for the weak acid CH3NH3 +, the conjugate acid of the weak base CH3NH2, Kb = 4.4 × 10−4 .

Which element is more metallic between Sn or As and why?

An unknown element is found to contain 45 protons and an atomic mass of 64, what is its atomic number?

A laser generates a pulse at 450 nm containing 2.75 × 10^15 ​ ​​ photons. What is the energy of the pulse?

Calculate the number of moles of Cl atoms in 3.61×1024 formula units of magnesium chloride, MgCl2?

Which is an example of an organic compound?

what is the pressure of the neon gas in its container?

Which statements(s) is/are true?

Can someone help me with this question please?

If the ratio of atoms in the reactants used does not equal the ratio of atoms in the equation, you will have a limiting reagent.

Which ones will have a nonzero dipole moment?

C12H22O11(aq)+H2O(g)->4C2H5OH(l)+4CO2(g) Find the theoretical yield and the percent yields of ethanol if 680.g sucrose undergoes fermentation and 303.5g ethanol is obtained.

What are the white fumes produced when ammonium hydroxide reacts with sulphuric acid ?

The electromagnetis spetrum is useful on Earth but not in space

To test a depth of the well a person drops a rock down from the well the rock takes 2.9 seconds to hit the water bill out how deep is the well

Still looking for help? Get the right answer, fast.

OR

John M.

A laser generates a pulse at 450 nm containing 2.75 × 10^15 photons. What is the energy of the pulse?