Answer:
A and 3
B and 2
C and 1
Explanation:
<em>Ion</em>ic bonding is the transfer of electrons from a cat<em>ion</em> to an an<em>ion</em>.
Covalent bonding is the sharing of electrons between nonmetal atoms.
<em>Metallic</em> bonding is the sea of electrons <em>metal </em>cations.
Hope this helped!
N<span>icolaus </span>Copernicus<span> was a Polish astronomer who put forth the theory that the Sun is at rest near the center of the Universe, and that the Earth, spinning on its axis once daily, revolves annually around the Sun. This is called the heliocentric, or Sun-centered, system.</span>
Answer:
C
Explanation:
A- incorrect, not in alphabetical order
B- incorrect, symbol for salt in NA not SA
C- correct
D- incorrect, not based on discovery
Answer:
A las unidades fundamentales les corresponden las magnitudes fundamentales siguientes: Longitud, el Tiempo, la Masa, la Temperatura, la Intensidad de corriente eléctrica, la Intensidad luminosa y la Cantidad de sustancia.
Explanation:
:)
Answer:
La acción humana ha conseguido a lo largo del tiempo, y sobre todo en el siglo XX, alterar física, química y biológicamente la Tierra, provocando distintos efectos, como son: agotamiento, erosión, desertización, deterioro y envenenamiento de la piel de la Tierra, a la que llamamos suelo.
Explanation:
