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1. a member of the boron family has three valence electrons, while a member of the car...
Chemistry, 25.09.2019 17:30 kayleefaithblair
Asap !
1. a member of the boron family has three valence electrons, while a member of the carbon family has
a four
b none
c three
d five
2. which of the following group 7a elements is the most reactive ?
a fluorine
b chlorine
c bromine
d iodine
3. which general statement does not apply to metals?
a most metals are malleable
b most metals are ductile
c most metals are brittle
d most metals are good conductors of the electric current
4. which element is found in most compounds in your body except for water?
a iron
b potassium
c iodine
d carbon
Answers: 1
Chemistry, 21.06.2019 17:00
Look at the reaction below: ca(hco3)2 --> caco3 + co2 + h2o first, balance the reaction. once balanced, use dimensional analysis or another method to find out how many moles of carbon dioxide will be produced if we start with 16.5 moles of calcium bicarbonate (calcium hydrogen carbonate). = mol of co2 number needs to be reported to three significant figures.
Answers: 1
Chemistry, 22.06.2019 04:30
The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.
Answers: 1
Chemistry, 22.06.2019 12:00
Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon
Answers: 2
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