An increase in the atmospheric concentrations of greenhouse gases produces a positive climate forcing, or warming effect. From 1990 to 2015, the total warming effect from greenhouse gases added by humans to the Earth's atmosphere increased by 37 percent.
Answer:
Energy added to solid water will turn it into liquid water; add energy into liquid water and it will be turned into water vapor.
Explanation:
Adding energy is basically adding heat; the more heat, the more excited the molecules of H2O gets. In solid water, the molecules aren't really moving because they don't have a lot of energy, so it is solid. In liquid water (which is water in room temperature), it has a medium amount of energy; the molecules aren't stuck together but it isn't completely dispersed, so it is in liquid form. However, in water vapor, the energy becomes very high and the molecules are excited. The hydrogen bonds holding the molecules together break and the water is released as a vapor.
For which of the following conversions does the value of the conversion factor depend upon the formula of the substance?
The answer is C
Explanation:
heliocentric means having the sun in the middle/center in the solar system
geocentric means having the earth in the middle/center in the solar system
therefore your answers are:
the planets orbit the sun.
in 1543, Nicolaus Copernicus proposed the theory.
the evidence that led people to believe this was when Galileo observed that four moons orbited around Jupiter. in other words, heliocentric.
most of the stars are located in the milky way galaxy.
Answer:
Explanation:
word equation:
a) Bromine + potassium iodide → potassium bromide + iodine
Chemical equation:
Br₂ + KI → KBr + I₂
Balanced chemical equation:
Br₂ + 2KI → 2KBr + I₂
B) word equation:
Iodine + potassium astatide → potassium iodide + astatine
Chemical equation:
I₂ + KAt → KI + At₂
Balanced chemical equation:
I₂ + 2KAt → 2KI + At₂
c) word equation:
chlorine + sodium iodide → sodium chloride + iodine
Chemical equation:
Cl₂ + NaI → NaCl + I₂
Balanced chemical equation:
Cl₂ + 2NaI → 2NaCl + I₂
d) word equation:
fluorine + sodium bromide → sodium fluoride + bromine
Chemical equation:
F₂ + NaBr → NaF + Br₂
Balanced chemical equation:
F₂ + 2NaBr → NaF + Br₂
e) word equation:
fluorine + potassium chloride → potassium fluoride + chlorine
Chemical equation:
F₂ + KCl → KF + Cl₂
Balanced chemical equation:
F₂ + 2KCl → KF + Cl₂
