The digestion process starts in the _____.esophagus
stomach
small intestine
mouth
Answers
Answer: mouth
Explanation:
The food digestion process in the human or animal body starts in the mouth. The mouth consists of teeth which helps in crushing and grinding of food. The mouth secretes saliva which provides lubrication to the food items. It helps in mixing process of the food so that it can be easily swallowed inside the gut and could enter into the digestive tract.
Related Questions
What is a major element found in our bones
Will bromine water and magnesium react
A bottle of rubbing alcohol contains both 2-propanol and water. These liquids can be separated by the process of distillation because the2-propanol and water(1) have combined chemically and retain their different boiling points(2) have combined chemically and have the same boiling point(3) have combined physically and retain their different boiling points(4) have combined physically and have the same boiling point
Which of the following is not a result of air pollution? A. SmogB. Breathing problemsC. Global warmingD. Soil erosion
Answers
Answers
It can save five times its purchase price in electricity cost because it contains toxic mercury that is equivalent in working: electrons that are bound to mercury atoms are excited to states where they will radiate ultraviolet light as they return to lower energy level, this ultraviolet light will be converted into visible light as it strikes to the coating of the bulb. Like LED that is high-efficiency house lighting.
Answers
Both ionic and covalent bonds can be used to characterize the bonds in the molecule MgSO₄.
Magnesium sulfate, or MgSO₄, has ionic and covalent bonds throughout its structure.
Magnesium (Mg) and oxygen (O) form a mainly ionic connection in MgSO₄. Easily donating two valence electrons to oxygen, magnesium forms the ions Mg₂⁺ and SO₄²⁻. The metal (Mg) and the non-metal (O) in this ionic connection are both metals.
The bonds between sulfur (S) and oxygen (O), on the other hand, are covalent. Sulfur and oxygen share electrons to form covalent bonds in the sulfate (SO₄) ion. Two non-metal atoms (S and O) share electrons through this covalent connection.
Option C is the right response since MgSO₄ possesses both ionic and covalent bonds as a result.
To know more about oxygen:
#SPJ6
lithosphere
hydrosphere
biosphere
geosphere
Answers
They can be created by chemical reactions.
They can consist of no more than two types of elements.
They all have the same properties regardless of their elemental composition.
Answers
Compounds have varying properties, depending on the compounds they are made from, and are created by chemical reactions.
Answer: The correct option is that the compounds are created by chemical reactions.
Explanation:
Option 1: Elements combine chemically in a specific ratio to form compounds. They can't be separated by physical methods like filtration. For example, is made up 2 H-atoms and 1 O-atom. When we filter water through normal filtration, we do not obtain H-atom and O-atom separately, but we get combined form of hydrogen and oxygen atom that is
.
Option 2: Compounds are formed when two or more elements combine chemically.
Option 3: Compounds can have more than two types of elements. For example, In , 3 elements are present - Calcium(Ca), Carbon(C), Oxygen(O).
Option 4: Compounds formed have different properties from one another. There can be difference in physical properties as well as chemical properties. For example, (water) and
(calcium carbonate) are two compounds. Water is present in liquid state and calcium carbonate is present in solid state. Hence, it showed that all the compounds cannot have same properties.
a. ethanol.
b. gasoline.
c. opiates.
Answers
Answer:
Alcohol contains A. ethanol.
Explanation:
Alcohol beverages are drinks that contain more than a minimal amount of ethyl alcohol or ethanol. Ethanol is a chemical compound, considered the main type of alcohol. It is produced by grain fermentation and used as a solvent, as an additive to gasoline and as the intoxicating ingredient of beer, wine, distilled spirits and other beverages.