1.) rotates
2.) revolution
3.) axis, tilt
4.) gravity
5.) this is not correct because the earth revolves around the sun
The element is likely to be metal.
The substances that are pure and only consists of atoms are called elements. They are the smallest and the fundamental unit of the compound and cannot be split to form any entity.
<h3>What are metals?</h3>
The metals are the elements that are good conductors of charge, electricity, are opaque, malleable, lustrous and ductile. They have high density and melting points. They differ from the non-metals and metalloids based on their physical and chemical properties.
The metals are more likely to donate and gain electrons to form complexes and can produce transitions. The electron gets excited when the energy is given in the form of heat and electricity and thus when comes to the ground state gives a distinct colouration.
Therefore, the element is likely to be metal.
Learn more about metals here:
brainly.com/question/24911138
Answer:
chemical change
Explanation:
A physical change is one that makes changes to the physical properties of matter. In many cases, the difference is usually reversible. Examples include boiling, melting, freezing, the magnetization of metals, etc.
A chemical change is one in which a new kind of matter is formed. It is usually accompanied by energy changes, i.e., the evolution or absorption of energy in the form of heat or light. This process is not easily reversible. Examples include; combustion, rusting of iron, precipitation, the souring of milk, etc.
From the question given, the combination of two clear liquid in a beaker which results to formation of bubbles and changes in coloration of the solution is a chemical change.
Answer:
a. NADH, FADH2
b O2
c. ATP, H2O
Explanation:
The reduced coenzyme that is generated in the citric acid cycles are NADH and FADH2. These coenzymes feed electrons in the electron transport chain which moves through electron acceptors present in the ETC.
The final electron acceptor in the electron transport chains is oxygen which converts into H2O. This movement of electron through ETS allows the movement of H+ ions from the mitochondrial matrix to intermembrane space.
These H+ ions when it comes back in the matrix through ATP synthase it generates ATP. So ATP and H2O are the final products of ETC and oxidative phosphorylation.
Answer:
There are 10 types
Explanation:
Cytokines are the molecules produced by the immune cells involved in the immune response like the B cells, T cells, macrophages and other cells.
They are produced as a means of communication between the immune cells which could act as a signalling molecule. The chemical nature of these cytokines is that they are either the proteins or the glycoproteins.
There are many types of cytokine produced in response to antigens which could be interleukin, interferon which could play a different role.
These cytokines are present in more than 10 types of forms therefore the selected option is correct.
