Which of the following describes a heterogeneous mixture? A
carbon monoxide, a toxic gas with the chemical formula CO
B
simple syrup, a substance that has two parts sugar to every one part of water
throughout
с
beach sand, a substance that can contain rocks, shells, metals and other
substances distributed unevenly throughout
D
sulfur, a substance with atomic number 16 and the symbol S on the periodic
table.

Which organelle releases chemicals that break down large food particles into smaller ones?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

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.