Nơi chia sẻ tri thức, kết nối cộng đồng và giải đáp mọi thắc mắc từ A–

Monday, 11/05/2026

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[FREE] Solve for x . \frac{x}{4} = 12 What is the value of x ?

$[FREE] Solve for x . \frac{x}{4} = 12 What is the value of x ?$

To solve the equation 4x=12, multiply both sides by 4, resulting in x=48. Therefore, the value of x is 48.Read more

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What is the general chemical equation for the incomplete ...

The general equation for this process takes the form of CnH2n+1OH plus O2 yielding CO and H2O, with the exact equation depending on the type of ...

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1. Reversible or irreversible reaction 2. Displacement

The reaction between HCL and Fe2(SO4)3 is a precipitation reaction. When hydrochloric acid (HCl) reacts with iron(III) sulfate (Fe2(SO4)3), ...Read more

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[FREE] How do you factor 27x^3 - 8 ?

Given: A cubic polynomial, 27x³ - 8. Therefore, the factorized form is (3x -2) (9x² + 6x + 4).Read more

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[FREE] Propanal + Ag(NH3)2 → - brainly.com

Propanal + Ag(NH3)2 → Propanol + Ag + NH3. This is a substitution reaction, where propanal reacts with silver ammine (Ag(NH3)2) to produce ...Read more

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NaOH(aq) + (NH4)2SO4(aq) → Express your answer as a ...

The reaction between sodium hydroxide and ammonium sulfate is: 2NaOH(aq)+(NH4)2SO4(aq)→2NH3(g)+Na2SO4(aq)+2H2O(l). This represents a ...Read more

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Balance the chemical equation: Na+O2

The updated equation becomes Na+O2→2Na2O But now, we need to balance the sodium, since we have 4 sodium atoms in the products (2 from each ...Read more

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Rearrange the equation x=3y−5 to make y the subject.

To make y the subject of the equation x=3y−5, first add 5 to both sides, giving x+5=3y. Then, divide both sides by 3 to solve for y, resulting ...Read more

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[FREE] When the equation \_\_ \text{NO}_2 +

$[FREE] When the equation \_\_ \text{NO}_2 +$

To balance the equation, NO2 + H2O + O2 → HNO3, we need to ensure that the number of atoms of each element is identical on both sides of the ...Read more

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[FREE] What is 60 divided by \frac{3}{4}?

$[FREE] What is 60 divided by \frac{3}{4}?$

60 divided by 3/4 is equal to 80. We have,. To divide 60 by 3/4, we can multiply 60 by the reciprocal of 3/4. The reciprocal of 3/4 is obtained ...Read more

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A student solved the equation 2x+6=12 using algebra tiles. ...

To solve the equation 2x + 6 = 12, subtract 6 from both sides to get 2x = 6, then divide by 2 to find x = 3. The student's mistake might have ...Read more

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What is the net ionic equation for the reaction: (NH4 - - )2

The net ionic equation for the given reaction: (NH4)2SO4(aq) + 2 KOH(aq) → K2SO4(aq) + 2 H2O(l) + 2 NH3(g), is obtained by writing down the ...Read more

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How do I balance the following chemical equation? FeCl2 -

Explanation. To balance the equation: FeCl2+Cl2→FeCl3. Identify the elements: We have Iron (Fe) and Chlorine (Cl) on both sides of the ...Read more

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Solve for n: ∣n∣−8=−1

The solutions to the equation ∣n∣−8=−1 are n=7 and n=−7. This is derived by isolating the absolute value and recognizing that it generates two ...Read more

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A chemical equation is shown below. KNO3 - - →KNO2

To balance the equation KNO3 → KNO2 + O2, the coefficients should be 2 for KNO3 and KNO2, and 1 for O2, as 2 KNO3 → 2 KNO2 + O2. This ...Read more

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[FREE] Determine the molar mass of \text{CuSO}_4 \times ...

$[FREE] Determine the molar mass of \text{CuSO}_4 \times ...$

Sum the molar masses of CuSO₄ and 5H₂O: Molar mass of CuSO₄·5H₂O = 159.62 g/mol + 90.10 g/mol = 249.72 g/mol.Read more

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Which alcohol could be used to prepare HCOOCH(CH₃) ...

Therefore, the correct alcohol for preparing HCOOCH(CH₃)₂ is Propan-2-ol (B). By using an acid-catalyzed esterification reaction of propan-2-ol ...Read more

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[FREE] Calcium carbide (CaC2) reacts with water to form ...

Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and calcium hydroxide (Ca(OH)2). Using the following enthalpy of reaction data ...Read more

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