Answer:
The mass of a substance is constant according to the law of conservation of mass.
Explanation:
According to the law of conservation of mass, matter can never be created or destroyed in a chemical reaction, even though it may undergo change from one physical state to another.
This means that in an isolated or closed system, the mass of matter will always be the same irrespective of the type of change that matter undergoes. This is so because, the mass of a substance is a measure of the quantity of matter in that substance and is constant. The number of particles does not change during a change of state, only their spacing and arrangement. In solid ammonia, the particles are more compact and arranged, whereas in gaseous ammonia, they are more randomly spaced out.
Answer:
Sexual
- creates genetically unique offspring
- organism needs time to reach adulthood to reproduce
- requires the contribution of two parents
Asexual
- creates genetically identical offspring
- organism doesn't have to waste energy to find a mate
- requires the Contribution f a single parent.
Explanation:
Sexual reproduction requires two parents two combine genetic material so the DNA is different than the parent's while Asexual reproduction just requires one parent and the Child's DNA is exactly the same.
Answer:
63%
Explanation:
7% times 9 servings is 63
Answer:
'Rare earth elements are in the first column on the left' is not true.
Explanation:
The rare earth metals are 17 metallic elements in the middle of the periodic table. Atomic numbers 21, 39, and, 51-57.
