Archive day

January 21, 2026

3,514 public questions were asked on this day.

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C. Why use an Excess of a reactant? 1. Some reactions stop while portions of the reactants are still present. a. This is inefficient and wasteful. b. Use an excess of the least expensive reactant can be driven to continu...
Asked by ash 1 answer
Using the information in the table to the right, calculate the enthalpy of combustion of 1 mole of acetylene for the reaction: 2Ces001-1.jpgHes001-2.jpg + 5Oes001-3.jpg es001-4.jpg 4COes001-5.jpg + 2Hes001-6.jpgO kJ/mol...
Asked by 01236 1 answer
Solve this problem by writing and solving an inequality. Five more than four times a number is less than 25. What are the possible values of the number? Show your work.
Asked by xochitl 1 answer
Convection is the movement of material that distributes heat in the Earth's mantle. What arrangement of material may lead to convective motion? A. denser material on top of less dense material B. mixed material with a un...
Asked by london 1 answer
blockade definition 25 words or less
Asked by fernanda 1 answer
Using long division, determine if the following polynomial divides evenly for a divisor of x+3x3−5x2+10x−15.
Asked by e 1 answer
On a coordinate plane, a dashed straight line has a negative slope and goes through (0, 2) and (4, 0). Everything below and to the left of the line is shaded. Which point is a solution to the linear inequality y < Negati...
Asked by jrjty 1 answer
Name three biological services provided by biodiversity.
Asked by Idk 1 answer
This excerpt is from a book that explains the science of everyday objects like tall buildings, bicycles, and automobiles.,end italics, from ,begin bold,Atoms under the Floorboards,end bold, questions for this text This q...
Asked by riq 1 answer
vThe mantle is a layer of the Earth's interior. It lies just below the outer crust and is made up of solid and liquid materials. The mantle is very hot, and heat traveling from the mantle is believed by many scientists t...
Asked by london 1 answer
what's appealing about a Corvette c5
Asked by jhi 1 answer
A tree casts a shadow that is 20 meters long. The angle of elevation from the end of the shadow to the top of the tree is 45°. How tall is the tree?(1 point) Responses 20 meters 20 meters 25 meters 25 meters 15 meters 15...
Asked by hello 1 answer
Use the image to answer the question. A number line ranges from 16 to 32 in 1 unit increments. An open point is labeled and plotted at 25.60. A line extends from that point to the right and goes past 32. The number line...
Asked by xochitl 1 answer
A coordinate plane with a line passing through (negative 4, 3), (0, 1), and (4, negative 1). Which linear function is represented by the graph? f(x) = –2x + 1 f(x) = –f(x) equals negative StartFraction one-half EndFracti...
Asked by jrjty 1 answer
Name three ecosystem services provided by biodiversity.
Asked by Idk 1 answer
Which linear function represents the line given by the point-slope equation y – 8 = y minus 8 equals StartFraction one-half EndFraction left-parenthesis x minus 4 right-parenthesis.(x – 4)? f(x) = f(x) equals StartFracti...
Asked by jrjty 1 answer
Bonnie claims single with 2 federal withholding allowances, and contributes state tax of 20% of her federal tax. Below is a copy of Bonnie's biweekly statement of earnings. Bonnie knows that her gross earnings and federa...
Asked by Kaileigh 1 answer
Which details might the setting of a story include? Select three options. point of view historical context time and location social environment character motivation
Asked by 8 1 answer
This excerpt is from a book that explains the science of everyday objects like tall buildings, bicycles, and automobiles.,end italics, from ,begin bold,Atoms under the Floorboards,end bold, questions for this text This q...
Asked by riq 1 answer
1) 1C 3 H 8 + 5O 2 à 3CO 2 + 4H 2 O a. How many moles of carbon dioxide gas is produced when 10.0 moles of propane, (C 3 H 8 ), is burned in oxygen? b. How many moles of oxygen gas are needed to produce 20 moles of water...
Asked by mimi 1 answer
Your neighborhood would like to raise funds to update the equipment in the neighborhood park. They hold a bake sale and raise 38 of the desired funds and then have a neighborhood yard sale and raise another 14. What is t...
Asked by GL 1 answer
Mr. Shaw graphs the function f(x) = –5x + 2 for his class. The line contains the point (-2, 12). What is the point-slope form of the equation of the line he graphed? y – 12 = –5(x + 2) y – 12 = 2(x + 2) y + 12 = 2(x – 2)
Asked by jrjty 1 answer
4. What if I was going to produce 10 mol of P4O10? (remember ratios) 1 P4 + 5 O2 🡪 1 P4O10 a. How many moles of P4 would I need? b. How many moles of O2 would I need?
Asked by ash 1 answer
For nearly 200 years, in the great pursuit of knowledge about aerodynamics, researchers have been fascinated by paper airplanes. Even the simplest design — a plain sheet of paper with no wings or fins, nothing resembling...
Asked by Sigma 1 answer
Choose the method of pay that would result in the most earnings for one month on sales of $40,000. a. Straight commission of 7.5% on all sales. b. Monthly salary of $1,600 plus 2.5% commission on all sales. c. Graduated...
Asked by Kaileigh 1 answer