Endothermic/exothermic

1 answer:

4 0

Endothermic is when the compound absorbs energy in the reaction. Exothermic is the opposite: the compound releases energy in the reaction.

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In CF4 and NF3, the ___electron groups on the central C and N atoms have a ___ arrangement. The shapes of the molecules are dete

enyata [817]

Answer:

Explanation:

In CF4 and NF3, the valence electron groups on the central C and N atoms have a tetrahedral arrangement. The shapes of the molecules are determined by the number of bonding and nonbonding of electrons: since CF4 has four bonded atom(s) and zero lone pair(s) of electrons, the shape is tetrahedral.

7 0

3 years ago

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Rewrite the equation below using the correct conventions for stoichiometric coefficients. 2 BaCl2 + 2 H2SO4 → 2 BaSO4 + 4 HCl

vichka [17]

Answer:

$BaCl2+H2SO4 \rightarrow BaSO4+2HCl$

Explanation:

The given equation is:

$2 BaCl2+2H2SO4 \rightarrow2BaSO4+4HCl$

Based on the reaction stoichiometry:

2 moles of barium chloride (BaCl2) reacts with 2 moles of sulfuric acid (H2SO4) to form 2 moles of barium sulfate (BaSO4) and 4 moles of HCl

Although the reaction is balanced, the correct convention is to depict reactions in terms of the lowest molar ratio. Therefore the coefficients (2,2,4 and 4) can be divided by 2 to give:

$BaCl2+H2SO4 \rightarrow BaSO4+2HCl$

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3 years ago

When two atoms are bonded together, the atom that is LEAST likely to attract electrons to itself is

Wewaii [24]

When two atoms are bonded together, the atom that is LEAST likely to attract electrons to itself is

the atom with the smallest electronegativity

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2 years ago

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Please help

Colt1911 [192]

A i belive is the correct answer

3 0

3 years ago

How many ml of co2 would be produced at 745 torr and 28°C

Marizza181 [45]

Answer:

Se aplica la leyes d ellos gases ideales para esto se convierten las unidades de Presión en atmósferas y Temperatura a Kelvin y si no se tiene el volumen el volumen equivale a 22.4Litros

Explanation:

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