12/04/24

Identify the best and two worst structures that were drawn for N3- (select three overall)
The inflation of an air bag when a car experiences a collision occurs by the explosive decomposition of sodium azide, Na3, which yields nitrogen gas that inflates the bag. The following resonance... more
Follows • 3
Expert Answers •1

12/01/24

Tech help password

Hello, I have an account with wyzant under my name and I use it to schedule tutors … but my daughter has my password and username . I’ve changed it but she still seems to be logging into my... more
Follows • 1
Expert Answers •1

11/15/24

What is the equation in slope intercept form of the line that passes through the point (6, 4) and is parallel to the line represented by y = 2.5x + 6?
Follows • 2
Expert Answers •2

11/06/24

7TH GRADE MATH (EXCEPTIONAL) - 7(A-E) 3-5: MathXL for School: Practice & Problem Solving
A sporting goods store manager was selling a ski set for a certain price. The manager offered the markdowns​ shown, making the​ one-day sale price of the ski set ​$326. Find the original selling... more
Follows • 1
Expert Answers •1

11/04/24

Question about math
A comet is travelling through the solar system. It passes by the Earth before curving around the Sun and heading back out into deep space. The distance of the comet from Earth, y, is tracked by... more
Follows • 2
Expert Answers •1

11/03/24

Predict the product(s) of the reaction shown.
I is not the correct answer.Options: IV I III and IV III I and II
Follows • 1
Expert Answers •1

11/02/24

What is the predicted product of the reaction shown?
The answer is not I
Follows • 1
Expert Answers •1

11/02/24

What would be the best base for performing the elimination reaction shown?
KOC(CH3)3 is not the correct answer. Is it the least bulkiest base KOCH3 that would be best?
Follows • 2
Expert Answers •1

10/22/24

Math Question Help
x 1 2 3 4 5 6 y 694 946 1190 1624 2305 2959 Use exponential regression to find an exponential equation that best fits this data. Give both a and b rounded to at least 4 decimal places.y... more
Follows • 3
Expert Answers •1

09/24/24

Math quantitative reasoning

You have just bought a new Sony 55" 3D television set for $1550. The TV's value decreases at a rate of $225 per year. Construct a linear function V (x) to represent the value of the television... more
Follows • 1
Expert Answers •1

03/03/23

Solid Ca3(PO4)2 is placed into 10.0 L of water.When equilibrium is established, the concentration of Ca2+ is 2.3x10-4 M. What is Kc for this equilibrium?
Follows • 2
Expert Answers •1

03/03/23

green plants chemical reaction
Green plants use light from the Sun to drive photosynthesis, a chemical reaction in which liquid water and carbon dioxide gas form aqueous glucose (C6H12O6) and oxygen (O2) gas. Calculate the moles... more
Follows • 1
Expert Answers •1

03/02/23

pH of solution after the addition of 23.9mL of 0.331 M HCl
The p𝐾a of hypochlorous acid is 7.530. A 55.0 mL solution of 0.137 M sodium hypochlorite (NaOCl) is titrated with 0.331 M HCl. Calculate the pH of the solution after the addition of 23.9 mL of... more
Follows • 2
Expert Answers •1

03/02/23

Step by step chemistry

A student mixed 24.5 g of magnesium bromide with 8.67 x 1022 molecules of hydroiodic acid... They recovered 8.23 g of acid. What is the percent yield?
Follows • 2
Expert Answers •1

02/26/23

4. Complete the following unit conversions. Be sure to show all work, express your answer in the appropriate number of significant figures, and include units.
4. Complete the following unit conversions. Be sure to show all work, express your answer in the appropriate number of significant figures, and include units.F. - How many µs are in 525,600 s?
Follows • 1
Expert Answers •1

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
Follows • 2
Expert Answers •2

02/23/23

What is the pH of a 0.710 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?
Please answer, im struggling. What is the pH of a 0.710 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?
Follows • 1
Expert Answers •1

02/23/23

What is the pH of a 0.710 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?
Please Answer, im struggling. What is the pH of a 0.710 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?
Follows • 1
Expert Answers •1

02/23/23

Biology homework help..?
Which of the following best describes prokaryotes and eukaryotes? Prokaryotes have a nucleus and eukaryotes do not. Prokaryotes do not have a nucleus; eukaryotes have a nucleus. Both have... more
Follows • 2
Expert Answers •2

02/23/23

How many moles of Li2SO4 are produced when you start with 0.9321 moles of Pb(SO4)2?
Follows • 1
Expert Answers •1

02/21/23

Calculate the following quantities. Refer to the standard entropy values as needed.
Consider the following reaction at 298 K.C(graphite)+2H2(g)⟶CH4(g) Δ𝐻∘=−74.6 kJΔS_sys= J/KΔS_surr= J/KΔS_univ= J/K
Follows • 3
Expert Answers •1

02/15/23

Identify the missing information for each atom or ion.
Note that the atoms and ions are not necessarily neutral. A Se ion has a mass number of 77 and a charge of −2 . Determine the number of neutrons, protons, and electrons in this ion.
Follows • 2
Expert Answers •1

02/12/23

Calculating Equilibrium Concentrations
Consider the equilibrium system involving the decomposition of nitrogen monoxide. 2NO(g) N2(g) + O2(g)     K =  [N2] [O2]  = 8.10×10-2 at 283 K [NO]2 A flask originally... more
Follows • 1
Expert Answers •1

03/08/21

What is the overall energy change if 1,500 g of N2 are reacted to make ammonia?
Ammonia (NH3) is made by the direct combination of H2 and N2 gases according to thisreaction: N2(g) + 3H2(g) → 2NH3(g) + 22.0 kcalWhat is the overall energy change if 1,500 g of N2 are reacted to... more
Follows • 1
Expert Answers •1

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

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.