Which element combination(s) would result in a transfer of electrons?

CaF2 + (NH4)2O --> 2 NH4F + CaO How many grams of NH4F can be formed from 34.6 grams of CaF2? (AKS 4f)

bixtya [17]

Answer:

32.83 grams of NH₄F can be formed from 34.6 grams of CaF₂

Explanation:

The balanced reaction is:

CaF₂ + (NH₄)₂O ⇒ 2 NH₄F + CaO

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following quantities participate in the reaction:

CaF₂: 1 mole
(NH₄)₂O: 1 mole
NH₄F: 2 mole
CaO: 1 mole

Being the molar mass of the compounds:

CaF₂: 78 g/mole
(NH₄)₂O: 52 g/mole
NH₄F: 37 g/mole
CaO: 56 g/mole

Then by stoichiometry, the following amounts of mass participate in the reaction:

CaF₂: 1 mole* 78 g/mole= 78 g
(NH₄)₂O: 1 mole* 52 g/mole= 52 g
NH₄F: 2 mole* 37 g/mole= 74 g
CaO: 1 mole* 56 g/mole= 56 g

You can apply the following rule of three: if 78 grams of CaF₂ form 74 grams of NH₄F by stoichiometry, 34.6 grams of CaF₂ will form how much mass of NH₄F?

$mass of NH_{4} F=\frac{34.6 grams of CaF_{2} *74 grams ofNH_{4} F}{78grams of CaF_{2} }$

mass of NH₄F= 32.83 grams

32.83 grams of NH₄F can be formed from 34.6 grams of CaF₂

5 0

3 years ago

A flask contains a mixture of compounds A and B. Both compounds decompose by first-order kinetics. The half-lives are 75.00 min

Shtirlitz [24]

Answer:

how long will it take for the concentration of A to be four times that of B = 23.08mins

Explanation:

The rate law equation was applied as it relates to the half life for a first order reaction as shown in the attachment.

3 0

3 years ago

Which statement accurately describes a P wave?

Snowcat [4.5K]

Answer:

A P wave can move through solid rock only. P wave can travel through liquid accurately describes a P wave.

4 0

3 years ago

State the trend in electronegativity for the halogens as these elements are considered in order of increasing atomic number

34kurt

The trend is ongoing

8 0

3 years ago

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Silver chloride breaks down to form silver and chlorine in the presence of light. what type of reaction is this? A combination r

Veronika [31]

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds. These reactions often involve an energy source such as heat, light, or electricity that breaks apart the bonds of compounds. so it is a decomposition reaction because the silver chloride breaks down into silver and chlorine

3 0

3 years ago

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