Answer:
The highest biogenic silica accumulation rates in this area are observed in the South Atlantic, with values as large as 53 cm. kyr−1 during the last 18,000 yr. Further, extensive biogenic silica accumulation has been recorded in the deep-sea sediments of the Bering Sea, Sea of Okhotsk, and Subarctic North Pacific.
Explanation:
Answer:
The correct answer would be 3. The number of atoms of each element in the reactants equals the number of atoms of each element in the products.
Explanation:
The law of conservation of matter states that energy cannot be created or destroyed, only transfered. Thus, option 3 is correct.
Answer:
The physical and human forces that work in combination to form and transform the world, for example, erosion, the water cycle, migration or urbanisation. Geographical processes can operate within and between places.
Answer: Yes, two objects may have the same volume while having different masses. The object with a greater mass will be the one that contains more matter.
Explanation: Mass and volume are two different properties of matter. Mass is defined as the amount of matter that a body has. Volume is defined as the amount of space that a body occupies. Density is the property that relates mass with volume as
and is defined as the amount of matter that exists in a certain amount of space.
Because mass and volume are independent from each other, we can say that two objects can have different masses and have the same volume.
<u>For example</u>, imagine two identical containers that weigh the same and that are capable of containing a volume of 1 liter each. Then, one of the containers is filled with water, while the other one is filled with mercury. In this case the volume of the water and the volume of the mercury will be the same: 1 liter, however, if we weigh the containers again, we will find that the one that has mercury is heavier than the one that has water. This is due to the density of mercury being higher than the density of water. In other words, 1 liter of mercury provides more mass than the mass provided by 1 liter of water.
Then, according to the definition of mass, the object that contains more matter will be the one that has more mass, in the case of our example, that would be the liter of mercury.
The property of ionic compounds is <u>Option B. they react with water and oxygen.</u>
Ionic compounds are very strong and require a lot of energy to break down so they have high boiling and melting points. Ions are formed due to electrostatic attraction between oppositely charged ions. All ionic compounds form crystals. Ionic compounds tend to have high melting and boiling points. Ionic compounds are very hard and very brittle.
Ionic compounds conduct electricity when dissolved in water. A property that is not characteristic of ionic compounds is that they are good conductors of electricity as solid crystals. Description To form a neutral ionic compound the cation and anion charges must be balanced. Some of the physical properties of ionic compounds are Physical State Ionic compounds are solid and relatively rigid due to the strong attraction between cations and anions.
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