Answer:
19.9 atoms
Explanation:
Grams --- Moles --- Atoms
You're converting from atoms (molecules) to moles.
You do not have to calculate the mass of "di phosphorus pentoxide."
Since you're already given 1.2x10^25 atoms, you start with that. You need to cancel out the atoms, so you need Avogadro's number as shown in the image.
(This has nothing to do with the problem) But in case if you're wondering, the "di" in phosphorus means there's 2 phosphorus and the "pent" means that there are 5 oxygens. So P2O5. Go to your periodic table, multiply their respective atomic masses. You would multiply phosphorus twice and oxygen 5 times. And add them up to get the overall mass.
I hope this helped!
Answer:
Hey mate.....
Explanation:
This is ur answer........
<em>For example, the communications industry includes all of the physical and social systems that produce books, newspapers, magazines, radio and television broadcasts, billboard advertisements, Internet websites, telephones, and telecommunications, such as the GPS.</em>
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Hope it helps!
Brainliest pls!
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Answer:
D) 152 g
Explanation:
a mass of 1 mol Cr2O3 = 2 × 52 + 3 × 16 = 152 g number of moles of Cr2O3.
Answer:
<em>The correct option is e. Extremophiles</em>
Explanation:
Archaea are prokaryotic organisms which were formerly separated from the bacteria domain.
Extremophiles can be described as organisms that have the ability to live in extreme conditions. Archaea have the ability to live in extreme environmental conditions such as a volcano vent, an extreme saline condition or extreme low-temperature conditions. Hence, archaea are also known as extremophiles. These organisms can thrive in extreme, harsh conditions which none other organisms can.
Answer:
false
Explanation:
not all science is good, or has good effects