Archive day

January 16, 2026

4,278 public questions were asked on this day.

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Analyzing the Decision to Quit Smoking How the body changes after your last cigarette 20–30 min: decreased blood pressure 8 hours: reduced carbon dioxide and increased oxygen in bloodstream 2 days: improved sense of smel...
Asked by Diamond 1 answer
Read the excerpt from a speech about perseverance. I raced down the field as fast as I could. This was my chance! I could finally redeem myself in the eyes of my teammates! I took an enormous breath and pumped my arms an...
Asked by christian 1 answer
Carbon-12 and carbon-13 are isotopes of carbon. Which of the following statements is correct? They both have seven protons in the nucleus. They both have the same mass number. They both have seven neutrons in the nucleus...
Asked by knmk 1 answer
Read the excerpt from Shirley Chisholm’s presidential announcement speech. I am not the candidate of Black America, although I am Black and proud. I am not the candidate of the women’s movement of this country, although...
Asked by jeff 1 answer
Which statement best explains how the solution should be made? Add 49.6 mL of 0.250 M sucrose to 400.0 mL of water to get 400.0 mL of 0.0310 M sucrose. Add 49.6 mL of 0.0310 M sucrose to 350.4 mL of water to get 400.0 mL...
Asked by 123 1 answer
A salt is best described as a compound that is formed from the reaction between an acid and a base. a strong acid and a weak acid. a strong base and a weak base. an acid and water.
Asked by tj 1 answer
Which two particles are found in the nucleus of an atom? neutrons and electrons protons and electrons protons and neutrons neutrons and atoms
Asked by knmk 1 answer
As inflation increased and the Roman Empire experienced greater political instability, what occurred? demands for democracy calls to divide the empire violent unrest removal of mercenaries from the army
Asked by ny 1 answer
Use the graph of f(x) to explain why the function has no real zeros. The graph of f(x) does not pass through (0, 0); therefore, f(x) has no real zeros. The graph of f(x) does not cross the x-axis; therefore, f(x) has no...
Asked by htht 1 answer
A strong acid, HA, is added to water. Which statement about the solution is true? It contains mostly hydroxide ions. It contains almost no hydronium ions. It contains little or no HA. It contains a low amount of ions.
Asked by tj 1 answer
In 1998, the House of Representatives impeached President Clinton on charges of obstruction of justice and sexual harassment. perjury. abuse. high crimes. Mark this and return
Asked by d 1 answer
How much of a 0.250 M sucrose solution must be used to prepare 400.0 mL of a 0.0310 M solution? mL
Asked by 123 1 answer
Boron occurs naturally as two isotopes. What is the difference between these isotopes? They have different numbers of electrons and different charges. They have different numbers of neutrons and different charges. They h...
Asked by knmk 1 answer
Why was the Battle of Gettysburg a great victory for the North? WRITER
Asked by Makayla 1 answer
A 25 mL sample of 0.100 M HNO3 completely reacts with NaOH according to this equation: HNO3(aq) + NaOH (aq) ⟶ NaNO3(aq) + H2O(l) What volume of 0.0500 M NaOH solution is required to completely react with the HNOmc001-1.j...
Asked by 123 1 answer
A pure acid measuring x liters is added to 300 liters of a 20% acidic solution. The concentration of acid, f(x), in the new substance is equal to the liters of pure acid divided by the liters of the new substance, or . W...
Asked by htht 1 answer
Hydrogen has three isotopes 1H, 2H, and 3H. What is the difference between these three isotopes? The number of protons ranges from 1 to 3. The number of electrons ranges from 1 to 3. The number of neutrons ranges from 0...
Asked by knmk 1 answer
Which ruler divided Rome in order to bring stability to the empire? Constantinople Maximian Diocletian Attila the Hun
Asked by ny 1 answer
Explain how enzymes lower activation energy in 2 short sentences.
Asked by mike 1 answer
A single atom of an element has 11 protons, 11 electrons, and 12 neutrons. Which element is it? V Na Mg Se
Asked by knmk 1 answer
The ratio of a quarterback's completed passes to attempted passes is 7 to 9. If he attempted 45 passes, find how many passes he completed. Round to the nearest whole number if necessary.
Asked by John Williams 1 answer
What countries/armies were involved in the battle?
Asked by ykme 1 answer
Explain how enzymes lower activation energy in 2 sentences.
Asked by mike 1 answer
In what year did the Western Roman Empire collapse? 370 CE 455 CE 476 CE 1453 CE
Asked by ny 1 answer
A person who has a weakened immune system may not be able to fight against infection because pathogens may enter the body and cause illness. phagocytes may enter the body and cause illness. normal cells crowd out unhealt...
Asked by Idk 1 answer