Biology, 01.11.2019 22:31, datzmypupppup
Igneous rocks can be formed from magma that solidifies deep beneath the earth's surface. when it cools quickly, it creates more smooth and shiny rock with fine grains
sedimentary rocks are made from the weathering and erosion of pre-existing rocks. if the sediment is buried deeply, it becomes compacted and cemented. sedimentary rocks also form from organic material and often contain fossils.
metamorphic rock is a result of transformation of pre-existing rock subjected to high heat and pressure. this causes the minerals in the rock to become unstable so they either reorient themselves into layers, giving them a striped look or recrystallize into larger crystals.
based on the reading, how would you classify this rock?
a. sedimentary rock because of its layers.
b. metamorphic rock because of its stripes.
c. igneous rock because of its large crystals
d. sedimentary rock because of the presence of fossils
Answers: 1
Biology, 22.06.2019 08:40, keilyjaramillo2870
What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.
Answers: 3
Igneous rocks can be formed from magma that solidifies deep beneath the earth's surface. when it coo...
Computers and Technology, 19.01.2021 14:00