During most processes, energy is exchanged between the system and the surroundings. If the system loses a certain amount of energy, that same amount of energy is gained by the surroundings. ... for an exothermic process is negative because the system is losing heat.
Answer:
Oxygen is composed of three isotopes: oxygen-16, oxygen-17 and oxygen-18 and has an average atomic mass of 15.9980 amu. Oxygen-17 has a mass of 16.992 amu and makes up 0.035% of oxygen. Oxygen-16 has a mass of 15.982 amu and Oxygen-18 has a mass of 17.984 amu.
Answer:
<h2>The answer is 39 g</h2>
Explanation:
The mass of a substance when given the density and volume can be found by using the formula
<h3>mass = Density × volume</h3>
From the question
volume of iron = 5 cm³
density = 7.8 g/cm³
It's mass is
mass = 5 × 7.8
We have the final answer as
<h3>39 g</h3>
Hope this helps you
S sub-levels contain a maximum of 2 electrons.
p sub-levels contain a maximum of 6 electrons.
d sub-levels contain a maximum of 10 electrons.
<span>f sub-levels contain a maximum of 14 electrons. </span>
Answer:
Humans :)
Explanation:
Humans have killed so many species of wolves, deer, tigers, lions and bears oh my!
In the food chain, we, humans are at the top because of this
