Answer:
Explanation:
A cold front is a transition zone from warm air masses to cold air masses. We use weather elements to identify cold fronts.
- Temperature: Since air moves from warm masses to cold masses, the air in a cold front is at different temperatures. The air behind a cold front is warm while the one ahead is cold. This implies that within a cold front is at different temperatures.
- Precipitation: Prior to the passing of cold front, precipitation is usually rife with low showers. A coldfront in itself is usually accompanied by heavy rainfall full of thunderstorms and lightening. After a coldfront, the showers steadies and decreases.
- Pressure changes: before a coldfront, the atmospheric pressure decreases steadily. When the front arrives, the pressure further lowers with a sharp increase thereafter. After the front, the pressure can continue to increase.
Answer:
Bread is a Molecule.
Explanation:
This is what I found.
Bread cannot be classified as a compound. Compounds are formed when two or more substances are bonded together chemically, however, mixtures are not chemically bonded.
The chemical building blocks of bread are proteins and starch. Starch molecules are long, chained polymers of simple sugars (such as glucose) joined end to end by chemical bonds. Proteins on the other hand are more complex, made up of varying combinations of different amino acids.
Hope this helps.
13.8 billion years ago
This relic radiation is known as the cosmic microwave background radiation. The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the universe was only 10–17 million years old.
Answer:
Cation Ca2+
Anion NO3-
Explanation:
Let’s first start with a chemical equation for the reaction.
Ca(OH)2 + 2HNO3 → Ca(NO3)2 + 2H2O.
The name of the compound formed is calcium trioxonitrate V
The Cation there is the positive ion and it Is the calcium ion.
The Anion there is the negative ion and it Is the NO3- ion called trioxonitrate V ion
