answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jok3333
15 days ago
7

g When 2.50 g of methane (CH4) burns in oxygen, 125 kJ of heat is produced. What is the enthalpy of combustion (in kJ) per mole

of methane under these conditions
Chemistry
You might be interested in
What mass of water in grams will fill a tank 100 cm long, 50 cm wide, and 30 cm high? Knowing that the density of water is 1 g/m
castortr0y [3046]

The mass is 150,000 grams. Multiply 100 by 50 by 30 to determine the container's volume, which equals 150,000 cm^3. Since a milliliter is equivalent to one cubic centimeter, and given that the density of water is one gram per milliliter, it follows that the mass of water is 150,000 grams.

7 0
1 month ago
A student reported to her instructor that her unknown contained salt, salicylic acid, and sand. In reality the unknown contained
lorasvet [2795]
From the provided data, the unknown mixture was composed of salt, salicylic acid, and sand. It is understandable that the student suspected the presence of sand, yet scientific experimentation must verify such assumptions. The test involving salt and salicylic acid reveals that salt dissolves in water, while salicylic acid is only slightly soluble, and sand does not dissolve at all. By introducing the unknown into water, the salt would dissolve first, followed by the partial dissolution of salicylic acid. Heating the mixture could allow for the evaporation of salicylic acid, resulting in the remaining salt. If traces of sand were observed in the dissolved sample, it could suggest contamination.
8 0
1 month ago
The phosphorylation of glucose to glucose 6-phosphate Group of answer choices is so strongly exergonic that it does not require
lions [2927]

Answer:

The process of converting glucose to glucose-6-phosphate is an endergonic reaction, which is coupled with the exergonic hydrolysis of ATP.

Explanation:

Within glycolysis, the phosphorylation of glucose to glucose-6-phosphate occurs first, facilitated by the hexokinase enzyme. This reaction is endergonic. This phosphorylation is a coupled reaction tied to ATP hydrolysis, where the free energy released by ATP hydrolysis drives glucose phosphorylation.

5 0
1 month ago
Global Precipitation Measurement (GPM) is a tool scientists use to forecast weather. Which statements describe GPM? Select three
Anarel [2989]

Answer:

This is a satellite that gathers information on rainfall and snow.

• Its orbit spans 90 percent of the Earth's surface.

• The sensors detect microwaves.

Explanation:

Right on track

4 0
1 month ago
Read 2 more answers
An earthquake on the ocean floor produced a giant wave called a tsunami. The tsunami traveled through the ocean and hit a remote
Tems11 [2777]

Response:

Indeed

Clarification:

Earthquakes occur due to the movement of tectonic plates, and when there is a downward shift of these plates, it generates a ripple effect similar to what happens when an object is dropped into water. As the plates descend, the water in the affected area is pulled downward by gravity, but rather than leveling out, it accelerates and gains velocity, subsequently forming a wave. A tsunami becomes evident when the water retreats as it gathers speed; this backward movement, combined with cohesion, causes the water to flow with the displaced water, intensifying the wave, which culminates in a colossal tidal wave we refer to as a tsunami.

8 0
2 months ago
Other questions:
  • Phosphine, ph3(g), combusts in oxygen gas to form water vapor and solid tetraphosphorus decaoxide. express your answer as a bala
    10·1 answer
  • A tritium nucleus is formed by combining two neutrons and a proton. the mass of this nucleus is 9.106 × 10–3 universal mass unit
    13·2 answers
  • You have a racemic mixture of d-2-butanol and l-2-butanol. the d isomer rotates polarized light by +13.5∘. what is the rotation
    15·1 answer
  • Two gases, A and B, are at equilibrium in a sealed cylinder. Individually, gas A is colorless, while gas B is dark colored. The
    14·1 answer
  • A) How many moles of CO2 and H2O are formed from 3.85 mole of propane C3H8 (This calculation needs to be done twice-once fro CO2
    9·1 answer
  • Using this information together with the standard enthalpies of formation of O2(g), CO2(g), and H2O(l) from Appendix C, calculat
    12·1 answer
  • Calcium hydroxide, Ca(OH)2, is used as a calcium nutritional supplement in some foods and beverages, such as orange juice. What
    15·1 answer
  • Sulfur, Tungsten, and Silver, they’ve got so much _______.
    14·1 answer
  • A student described two properties of a substance shown below which of the following is true about the two properties described
    9·2 answers
  • For NH4NO3(s) write a balanced thermochemical equation.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!