3 years ago

What are the representative elements? Where are they located

1 answer:

4 0

The representative elements are elements where the s and p orbitals are filling. The transition elements are elements where the d orbitals (groups 3–11 on the periodic table) are filling, and the inner transition metals are the elements where the f orbitals are filling.

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Balance this equation: CH4 +2O2--------> ___ CO2 + ___ H2O

Lubov Fominskaja [6]

Answer:

b-1 CO2+ 2H2O

5 0

3 years ago

blondinia [14]

Answer:

Helium has melting point of - 272.2°C or - 458°F

Sodium (Na) = 650°C. or 208°C

Magnesium (Mg) = 97.79°C. Or 1202°F

Explanation:

4 0

3 years ago

Please help me! 45 points each!!

Sveta_85 [38]

Answer:

CH4+ 2Cl2→CH2Cl2+ 2HCl

Explanation:

mass is 132.8`125

as methane and dichlormethane has the same molar ration 1 to 1

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so 1.5625 times mr of ch2cl2 is 132.8125

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3 years ago

What is the Iupac name for CH3CHIH3

frozen [14]

Answer:

Acetone | CH3COCH3 - PubChem

Explanation:

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3 years ago

Can frozen ice transfer thermal energy to another substance? if so, how?

Studentka2010 [4]

Answer:

Matter can change state when thermal energy is transferred into or out of the substance. Ice melts and liquid water boils as thermal energy is added. Water vapor condenses and liquid water freezes as thermal energy is removed.

7 0

2 years ago