Ionic compounds form because the valence
electrons are
a) shared between the atoms.
b) all transferred to one of the two atoms.
c) completely removed from all atoms involved in the bonding process.
d) transferred from an atom of one element to an atom of another element.
d
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Titan is smaller in mass and somewhat larger in size than the planet Mercury. How can Titan keep a substantial atmosphere while Mercury is virtually airless?
What will be an ideal response?
Bowl-shaped depression; the term comes from the Greek for bowl
A. Crater |
B. Stone meteorites |
C. Tektites |
D. Meteors |
E. Regmaglypts |
F. Meteor showers |
A dart is loaded into a spring-loaded toy dart gun by pushing the spring in by a distance d. For the next loading, the spring is compressed a distance d/2. How much faster does the second dart leave the gun compared with the first?
1.two times as fast 2.the same 3.half as fast 4.one fourth as fast
A triangle has sides of length 7 cm and 11 cm. If the triangle is a right triangle, which of the following could be the length of the third side, to the nearest centimeter?
a. 11 cm b. 8 cm c. 16 cm d. 17 cm e. 7 cm