Answer:
Proust's law of definite proportion
Explanation:
The law of constant proportion states that the components elements of a given chemical compound combine with each other in a fixed mass ratio when the compound is produced by any given process
Therefore, from the question, the chemical formula for Nitrogen Dioxide is NO₂, where the molar mass of nitrogen, N = 14
The molar mass of oxygen, O = 16
Given that one molecule of NO₂, contains one atom of nitrogen and two atoms of oxygen, one mole of NO₂ will contain 14 grams of nitrogen and 32 grams of oxygen, according to Proust's law of definite proportion.
Answer:
eukaryotic
Explanation:
all human cells—including those found in the brain, the heart, the muscles, and so on—are also eukaryotic.
Answer:
c) neutral, with the number of protons equaling the number of electrons.
Explanation:
Every atom is neutral. This is because they contain equal numbers of positive protons and negative electrons. Atoms, in which the number of electrons is not equal to the number of protons, are called ions. Ions can occur from ionic bonds in which two elements take and give electrons in order to fill their outer shell and become stable. The action of taking and giving electrons between atoms leaves those atoms to be either negatively charge( The atom has more electrons than protons) or positively charged (The atom has more less electrons than protons).
Answer:
Balanced half-reaction: Au⁺(aq) → Au³⁺(aq) + 2e⁻.
Gold lost two electrons and change oxidation number from +1 to +3.
Answer:
Two ecosystems might have different species of plant this is as a result of the nature of the ecosystem and the ability of plants to thrive in them.
Explanation:
An ecosystem can be defined as a community of organisms living together and interacting with their physical environment. There are different types of ecosystems but they are all categorized under terrestrial and aquatic habitats. They include forests, grasslands, deserts, freshwater and marine.
In the desert ecosystem an example of a plant that grows there is the cactus plant, this is as a result of their ability to conserve water.
In freshwater ecosystem, an example of a plant found there is the waterlily this is due to their unique ability to survive on water surfaces.
These different plant species are affected by different limiting factors in their ecosystems such as temperature, sunlight, nutrients.