Archive month

December 2025

42,840 public questions were asked this month.

← Nov 2025 Jan 2026 →

By day

Daily archive

1 2,939 2 2,810 3 3,385 4 3,420 5 2,979 6 454 7 708 8 3,076 9 2,883 10 2,814 11 3,129 12 2,547 13 152 14 215 15 1,952 16 2,706 17 2,558 18 1,693 19 1,109 20 85 21 104 22 73 23 146 24 83 25 8 26 115 27 76 28 223 29 112 30 212 31 74

Recent questions

Latest from December 2025

How much heat is gained when the temperature of 288 g of liquid water is raised from 100 oC to 125 oC? a. 30 618 J b. 30 168 J c. 20 168 J d. 20 618 J e. 120 384 J
Asked by sstt 1 answer
100 g of a liquid is 25 oC and is heated to raise the temperature of the liquid to 50.0 oC. The thermal energy gained by the liquid is 6100 J. The specific heat of the liquid is a. 0.82 J/g oC b. 2.44 J/g oC c. 2.06 J/g...
Asked by sstt 1 answer
The enthalpy change for reaction N2 + 3H2(g) 2NH3(g) is 92.2kJ. The enthalpy of formation of ammonia is a. –92.2 kJ b. –46.1 kJ c. –46.1 kJ/mol d. –92.2 kJ/mol e. cannot be determined
Asked by sstt 1 answer
The thermochemical equation for the formation of methyl alcohol indicates that 239 kJ of energy is released and 32 g of methyl alcohol is formed. The formation of 64 g of methyl alcohol will release energy equivalent to...
Asked by sstt 1 answer
Make this shorter and like a 9th grader wrote it In right triangle DOG, where angle O is 90 degrees, we have: sin ⁡ ( 7 0 ∘ ) = opposite hypotenuse = 𝑂 𝐺 𝐷 𝐺 sin(70 ∘ )= hypotenuse opposite​= DG OG​cos ⁡ ( 2 0 ∘ ) = adja...
Asked by jerry 1 answer
____ 5. Use the following information to answer the next question. When placed in acid, magnesium metal reacts and forms hydrogen gas: Mg(s) + HCl(aq)  MgCl2(aq) + H2(g) H = -56.5 kJ/mol If HP denotes the enthalpy of p...
Asked by sstt 1 answer
Make this shorter and like a 9th grader wrote it Based on the table provided, the sine and cosine have equal ratios when the angle is 45 degrees. At 45 degrees, both the sine and cosine are approximately 0.7071. Conjectu...
Asked by jerry 1 answer
he temperature in a desert can fluctuate from being over 100° F during the day to below 40° F at night. Why can the desert experience such a daily temperature change? Responses A The high amount of vegetation helps to sh...
Asked by Blaine 1 answer
A simplified model of atmospheric convection is shown here. Which of the statements explains how convection occurs to move energy around the Earth? Select ALL that apply. Responses A The warmer air rises within the atmos...
Asked by Blaine 1 answer
Land breezes and sea breezes are two types of local winds that form MOSTLY because Responses A water releases heat energy faster than land.water releases heat energy faster than land. B wind moves faster over water than...
Asked by Blaine 1 answer
How does the sun provide energy to drive the earth's weather phenomena? Responses A Temperate conduction from the sun drives the weather.Temperate conduction from the sun drives the weather. B The sun's UV radiation warm...
Asked by Blaine 1 answer
What is the source of energy for our weather? Responses A The sun.The sun. B The earth's orbit around the sun.The earth's orbit around the sun. C The earth's rotation on it's axis.The earth's rotation on it's axis. D The...
Asked by Blaine 1 answer
Why are coastal areas cooler during the day than inland areas? Responses A It rains during the day in coastal areas.It rains during the day in coastal areas. B A cool breeze blows from the sea during the day.A cool breez...
Asked by Blaine 1 answer
A study published in the journal Science notes that water flowing from the Atlantic Ocean into the Arctic is warmer than it's been in 2,000 years. Scientists believe that this increased heat input has far-reaching conseq...
Asked by Blaine 1 answer
While at the beach, Sam and Sal recorded the temperatures on land and at sea. They discovered that each morning the ocean and land had a similar temperature. On a sunny day, the sun continues to warm both the ocean and l...
Asked by Blaine 1 answer
The outcast of his family, _______________ is an important figure from Egyptian history. Once he gained status as a pharaoh, he wiped out the long-lasting, traditional plytheistic order or religion and introduced Egypt (...
Asked by Nissan GT-R R35 Nismo 1 answer
This model shows how cold winter air is warmed in the Great Lakes Basin, which creates ideal temperatures for year-round fruit farming. Which statement best describes this interaction? Responses A The biosphere and hydro...
Asked by Blaine 1 answer
This is the liquid water component of the Earth. It includes the oceans, seas, lakes, ponds, rivers and streams. It covers about 70% of the surface of the Earth and is the home for many plants and animals. Responses A at...
Asked by Blaine 1 answer
Question Id : 2056571 8 of 108 of 10 Items 06:47 Question A wildfire burns through a forest, releasing smoke into the air and destroying plant life. Which spheres are involved? Responses A biosphere, geosphere, atmospher...
Asked by Blaine 1 answer
The _______________ vase is the world's oldest ritual vase carved in stone found in Sumer.
Asked by Nissan GT-R R35 Nismo 1 answer
The Earth is made up of five interdependent spheres: the geosphere (lithosphere), hydrosphere, biosphere, cryosphere, and atmosphere. The spheres are so closely connected that a change in one sphere often results in a ch...
Asked by Blaine 1 answer
______________________, found in france was discovered in 1940 by four french teenagers and contains the famous gallery called "the great hall of the bulls" Hatshepsut Lascaux registers Gudea of Lagash
Asked by Nissan GT-R R35 Nismo 1 answer
This is the solid layer of the earth. It includes the crust and the lithosphere. Responses A atmosphereatmosphere B geospheregeosphere C hydrospherehydrosphere D lithosphere
Asked by Blaine 1 answer
Marketers have a big part to play in any organization because they are the ones who develop the _____ to attract customers. (1 point) Responses price structure price structure theories theories strategies strategies prod...
Asked by her. 1 answer
This model shows how lake effect snow forms. Which statement best describes how the Great Lakes impact lake effect snow in the Great Lakes basin? Responses A They are a constant source of moisture that cause localized he...
Asked by Blaine 1 answer