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Questions (9)
What are the properties of a covalent bond and how does it differ from an ionic or metallic bond?
0 answers
147 views
Hector has a piece of pure substance that reflects light and bends or dents when dropped. if he takes it to a factory that makes
1 answer
781 views
predict where an unknown element that has the properties would fit in the periodic table:it is has properties of a semimetal.
and
1 answer
598 views
which option shows a coefficient on the product side in this chemical equation?
3Fe +4H20 -->Fe30 +4H2 A. the 3 in Fe and 4 in
1 answer
633 views
what type of reaction is this 2h2o2 (l) -> 2h2o(l)+ o2 (g)
a.single replacement reaction. b.decomposition reaction. c.acid-base
3 answers
8,817 views
Yuri surveyed randomly selected middle school students in his neighborhood. He found that around 60% of them plan to participate
2 answers
2,242 views
Use the table of simulated values to answer the question. The numbers 0 to 5 represent middle school students planning to
2 answers
900 views
About 75% of the girls in grade 7 at Grande Rock Middle School prefer colored jeans to the regular blue ones. The randomly
2 answers
1,955 views
Anita has a success rate of 80% on free throws in basketball. She wants to know the estimated probability that she can make
14 answers
3,137 views
Answers (2)
similar-behaving elements are in the same vertical column, and the properties that they share vary repeatably as you move down the columns. If the unknown substance is a shiny solid, odds are it's a metal. If the unknown substance fizzes, pops, or explodes
Yuri surveyed randomly selected middle school students in his neighborhood. He found that around 60% of them plan to participate in a charity walk organized by the town council. What is the estimated probability that it will take at least six middle school
