Question 1 of 10
Which of these is an example of a composite material?
A. Aluminum for the ou...
Chemistry, 20.10.2020 05:01, shakira11harvey6
Question 1 of 10
Which of these is an example of a composite material?
A. Aluminum for the outer layer of an airplane
B. Plywood used in houses, which contains wood pieces glued
together in different directions
C. Wood planks used as beams to support roofs
D. Steel cables designed to be lightweight and strong
Answers: 1
Chemistry, 21.06.2019 18:10, write2lakenor7awj
Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.
Answers: 2
Chemistry, 23.06.2019 01:00, MrTeriffic
Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.
Answers: 1
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