Answer:
Atoms of the same element that differ in their numbers of neutrons are called isotopes. Many isotopes occur naturally. Usually one or two isotopes of an element are the most stable and common. Different isotopes of an element generally have the same physical and chemical properties.
Answer:
0.1g/ml
Explanation:
0.1 g/ml = 100kg/m³
The difinition of density is mass per volume.
⇒So you have 5 grams of water which occupies a volume of 50 milliliters. This gives us : 5g / 50ml = 0.1g/ml
In Si- units 0.1g/ml = 100kg/m³
Answer is: <span>Mutations sometimes improve the chances of survival for a plant.
</span>Mutations are very important because they change <span>variability in populations and in that way enable evolutionary change.
</span>There are three types of mutations:
1) good or advantageous mutations - <span> improve the chances of survival for a plant.
2) </span>bad or deleterious - decrease the chances of survival for a plant.
3) neutral - not affect he chances of survival for a plant.
Answer:
Explanation:
From the given information:
mass = 3.42 kg = 3420 g
molar mass of = 59 g
Number of moles of
Number of moles of
= 57.966
number of hydrogen atoms present =
where;
number of hydrogen atoms present