Atomic mass is number of protons + number of neutrons (disregard electrons in mass calculations). 104 + 157 = 261.
Answer:
c
Explanation:
oxygen is lost electrons are added in oxidation state is decreased
The significant figures are 2 and 5 in 250.
<h2>Answer:</h2>
D) The geosphere, hydrosphere, and atmosphere
<h2>Explanation:</h2>
During the carbon cycle, various processes move carbon from the geosphere to the atmosphere such as volcanic eruptions release carbon dioxide from molten rock beneath the earth's surface to the atmosphere. Carbon can leave the soil through soil respiration which releases CO2, or by erosion which can carry it into rivers or the ocean, where it then enters the hydrosphere. Carbon is found in the hydrosphere dissolved in ocean water and lakes and hence the cycle continues.
Answer: I believe it’s element symbols
Explanation: I hope we both get it right
