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bulgar [2K]
3 years ago
6

What is the chemical formula for cerium?

Chemistry
1 answer:
ira [324]3 years ago
3 0

Ans: Ce
Cerium is a chemical element with the symbol Ce and atomic number 58.
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- Equilibrium shifts for slightly soluble compounds The reaction for the formation of a saturated solution of silver bromide (Ag
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Answer:

1) Favor formation of reactant

2) Favor formation of product

3) Favor formation of product

4) Favor formation of product

5) Favor formation of product

Explanation:

The reaction is AgBr(s)--->Ag^{+}(aq)+Br^{-}(aq)

The reaction is endothermic

1. Adding hydrobromic acid (HBr)

It will increase the amount of bromide ion. Bromide ion is one of the product so it will favor formation of reactant.

2. Lowering the concentration of bromide (Br-) ions

As we are decreasing the the concentration of product it will favor formation of more products

3. Heating the concentrations

If we are heating the mixture, it will increase the temperature and it will favor endothermic reaction. Thus will favor formation of product.

4. Adding solid silver bromide (AgBr)

If we are adding silver bromide it means we are increasing the concentration of reactant, it will favor formation of products

5. Removing silver (Ag+) ions

Removing silver ions means we are decreasing the concentration of product thus it will favor formation of products.

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3 years ago
BJECTIVE TYPE QUESTIONS
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1.Physical change

2. Chemical change

3. Heat

4.photosynthesis

5. composition

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2 years ago
Place where food is stored and partially digested
Ostrovityanka [42]
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Explain: Chyme passes from the stomach to the small intestine. Further protein digestion takes place in the small intestine.
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Arrange the following elements in order from least to greatest electronegativity:<br> Ca, F, Ne, Fe?
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Answer:

The electronegativity from order of least to highest is:

Ne, Ca, Fe, F

Explanation:

Elements in the periodic table have been arranged based on their level of electronegativity (which is the ability of an atom to attract electrons).

According to Paulings scale of rating elements based on their electronegativity, the electronegativity value of Fe, Ca, Ne, and F are 1.83, 1, 0 and 3.98 respectively.

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Ne > Ca > Fe > F

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Using the word bank explain why increasing the temperature increases the rate of reaction​
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