I believe your answer will be 40
Answer:
B.
Explanation:
Si is an element.
A compound is 2 different elements combined. H2O and NaCl fit this requirement, so they are compounds. They cannot be elements because they are not single elements like Si.
Answer:
w;fhbnwfihcbnwicoikn JNBS:IJBC: S ACJOAC
KS B>KSF NBSBSJ B
"SF< SFMF SF:OSKS OJ AOJ OJV CaCASDAOJV :AOBIBJSR:B RFVI
Explanation:
Answer:
1.) 28.0 grams of oxygen28 grams (1 mole/16 grams per mole)=1.75 moles oxygen2.)5.0 moles of Iron5 moles(55.845 grams/1 mole)=279.225 grams Iron3.) 452 grams Argon452 grams(1 mole/39.948 grams)=11.315 moles Argon4.) 16.5 moles Hydrogen16.5 moles(1.01 grams/1 mole)=16.665 grams Hydrogen
Explanation:
Answer:
Cobalt lose 3 electrons and donate 12 electrons.
Explanation:
In the periodic table,cobalt has nine electrons .It has lost 3 electrons,so it is only six left.Once it forms the complex,each ammonia donates a pair of electrons.