Sadie M.

03/12/23

What is the magnetic flux through the square due to this field?

A 2m long metal wire is formed into a square and placed in the horizontal xy-plane. A uniform magnetic field is oriented at 30° above the horizontal with strength of 0.344 T. What is the magnetic... more

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Chemistry

03/04/23

What is the pH of a 8.5 × 10⁻³ M HI solution?

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Chemistry

02/24/23

Calculate the equilibrium constant for the chemical reaction, given the equilibrium concentrations of the reactants and products in the table. 2AB(aq)+4CD(aq)↽−−⇀2AD(aq)+2BD(aq)+4C(aq) 𝐾=

AB 1.95 M CD 2.17 M AD 3.02 M BD 4.61 M C 2.52 M Substance Equilibrium concentration

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Chemistry

02/22/23

Chemistry stoichiometry

Fe2O3 + 2Al yields Al2O3 + 2Fe A welder has 1.873 x 10 to the second power g Fe2O3 and 94.51 g Al in his welding kit.How many grams of of aluminum oxide are produced in the reaction? choices are... more

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Chemistry

02/22/23

NET ionic equation

Write the balanced NET ionic equation for the reaction when ZnI₂ and Pb(ClO₄)₂ are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for... more

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Chemistry

02/19/23

4. If a solution’s pOH changes from 11 to 13, what does this indicate about the change in concentration of hydronium ions in that solution? Include specific quantitative information in your answer.

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Organic Chemistry

02/18/23

A sample of helium gas has a volume of 2.92 L at 23°C. What volume will it occupy at 165°F if the pressure and number of mol are constant?

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Organic Chemistry

02/17/23

What is the percent yield of PI3(g)?

Consider the balanced chemical reaction when phosphorus and iodine react to produce phosphorus triodide: 2 P(s) + 3 I2(g) → 2 PI3(g)If 131 g of I2(s) are reacted with excess P(s) to produce... more

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Organic Chemistry

02/17/23

I'm stuck on a question

According to the reaction below, how many moles of Cu2CO3(s) can be produced from 125 mL of 0.198 M CuNO3(aq)? Assume that there is excess Li2CO3(aq).2 CuNO3(aq) + Li2CO3(aq) → Cu2CO3(s) + 2 LiNO3(aq) more

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Math Biology Chemistry

02/14/23

A rate law is 1/2 order with respect to a reactant. Describe (quantitatively) what happens to the rate of reaction when the concentration of this reactant is doubled.

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Chemistry

02/14/23

For the reaction 2HNO3 + Mg(OH)2 -> Mg(NO3) 2 + 2H20, how many grams of magnesium nitrate are produced from 2 grams of nitric acid, HNO3 ?

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Chemistry

02/12/23

If a 0.900 𝑚 aqueous solution freezes at −2.10 °C , what is the van't Hoff factor, 𝑖 , of the solute?

i=?

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Chemistry

11/12/21

At what temperature will a 1.00 g sample of neon gas exert a pressure of 500. torr in a 5.00 L container?

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Chemistry

11/09/21

What is the pH of a bleach solution that has a [OH−]=3.2×10−3 M? pH=

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Chemistry

11/08/21

Which of the following contains the GREATEST number of atoms of argon gas? 5.0 L of Ar at STP, 6.02 x 10^23 atoms of Ar ,O 0.75 moles of Ar, 20.0 g of Ar

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Chemistry

11/08/21

Write a net ionic equation for the reaction that occurs when zinc carbonate (s) and excess hydroiodic acid are combined.

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Chemistry

01/20/21

For the unbalanced equation shown below, balance it then solve how many moles of Na2SO4 be produced by 0.5657 moles of NaOH? NaOH+H2SO4 => Na2SO4+H2O

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Chemistry

01/20/21

For the balanced equation shown below, balance it then solve how many moles of H2O be produced by 0.3005 moles of C3H6O2S? 1 C3H6O2S+ 5 O2 => 3 CO2+ 3 H2O+ 1 SO3

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Chemistry

01/20/21

For the balanced equation shown below, balance it then solve how many moles of C2H3F will react with 0.4646 moles of O2? 4 C2H3F+ 7 O2 => 8 CO+ 6 H2O + 2F2

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Chemistry

01/18/21

Writing simple electronic half equations (electrolysis)

2Al2O3 -> 4Al + 3O2At the anode : At the cathode:CuBr2 -> Cu + Br2At the anode :At the cathode:2NaCl -> 2Na +Cl2At the anode:At the cathode:ZnCl2 -> Zn + Cl2At the anode:At the cathode:

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Algebra 1

01/18/21

five less than the product of a number and 3 is 14

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Chemistry

04/22/19

What is the percent composition of Phosphorous in Ca₃(PO₄)₂?

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Algrebra

08/16/18

Getting stuck....18 + (-7)×(32-6) using pemdas order of operations

Getting 2 different answers for 18+(-7) × (32-6)

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What is the magnetic flux through the square due to this field?

What is the pH of a 8.5 × 10⁻³ M HI solution?

Calculate the equilibrium constant for the chemical reaction, given the equilibrium concentrations of the reactants and products in the table. 2AB(aq)+4CD(aq)↽−−⇀2AD(aq)+2BD(aq)+4C(aq) 𝐾=