Nitrogen can also bond with otherthree atoms because of its outer shell (valence shell) that has three electrons.This is the reason why organic molecules can be so large because of thisbonding. Suppose you have a compound of NH3. You know that hydrogen can onlyshare 1 electron because 7 of its electrons are filled. Also, in nitrogen, it canonly share 3 electrons because 5 of it are already filled. That is why nitrogenneeds three hydrogen to form NH3.
Answer:
There are 3, 64 moles of NaCl.
Explanation:
First we calculate the mass of 1 mol of NaCl, starting from the atomic weights of Na and Cl obtained from the periodic table. Then we calculate themoles in 213 grams of NaCl, making a simple rule of three:
Weight NaCl= Weight Na + Weight Cl = 23 g + 35, 5 g= 58, 5 g/ mol
58,5 g ------1 mol NaCl
213 g---------x= (213 g x 1 mol NaCl)/ 58, 5 g= 3, 64 mol NaCl
-atoms splitting to make heat which in turn turns a generator to make electricity
-car battery turning a car on
-food making you run
Answer:
A car battery turning a car on.
The dark-colored mutation could be beneficial in a polluted area because this phenotype may confer an adaptive advantage.
A mutation is any alteration in the nucleotide DNA sequence (genome) of an organism.
Mutation can be beneficial, deleterious, or neutral depending on the environmental conditions in which the individual lives.
In this case, the dark-colored mutation could be beneficial for an insect living in a polluted area because bright-colored phenotypes make the moth very conspicuous to visual predators.
In consequence, dark-colored insects have more chances to survive and reproduce (i.e., they have an adaptive advantage), thereby these insects have more chances of passing this mutation to the next generation.
In conclusion, the dark-colored mutation could be beneficial in a polluted area because this phenotype may confer an adaptive advantage.
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In the given question, melting cheese is a type of physical change.
A physical change is defined as a change in the physical properties of a substance, such as its shape, size, or state, without changing its chemical composition.
When cheese is melted, it changes from a solid to a liquid state, but its chemical composition remains the same. The molecules in the cheese are simply rearranged as it is heated, causing it to melt.
Therefore, melting cheese is a physical change. This is because the cheese changes from a solid to a liquid state, but its chemical composition remains the same.
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a small swimming pool
a candle stick
a water balloon tied at the top
Answer:oxygen
Explanation: