What is the maximum number of moles of NaCl that can be produced from the reaction of 5.6 mol Na and 4.7 mol CI2?

How is a chemical change different from a physical change?

DaniilM [7]

A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.

6 0

3 years ago

Slicing an average loaf of bread gives 13 medium thickness slices. Each slice of bread is to be coated with 0.0500 oz of mayonna

AlexFokin [52]

Answer:

36 loaves of bread and 18.48 ounces of mayonnaise are needed to make all of the sandwiches.

Explanation:

Number of slices of ham = 231

Given that each sandwich has 1 slice of ham.

Then 231 slices of ham will be in :

$1\times 231 =231 sandwiches$

A single sandwich is made up of 2 bread slices , Then bread slices in 231 sandwiches will be :

$231\times 2=462$

Each bread slice is applied with 0.0500 ounce of mayonnaise.

Then 462 bread slices will have :

$462\times 0.0500 ounces=18.48 Oz$

1 bread loaf = 13 bread slices

Then breads loves in 462 bread slices :

$\frac{462}{13}=35.54\approx 36$

36 loaves of bread and 18.48 ounces of mayonnaise are needed to make all of the sandwiches.

8 0

3 years ago

Sometimes Combination reaction takes place sometimes decomposition and sometime replacement.. Can someone say me the conditions

Rina8888 [55]

Whenever any substance goes under chemical change so any of the reaction will happen either both or multiple compounds will combine to produce combination reaction either one compound will decompose itself into 2 or more compounds or elements and last one is replacement reaction the either reaction is not even going to combination nor decomposition, So when a reaction like that happens it must replacement reaction.

Now the question is what's the condition required for it, so basically a chemical reaction when takes place it depends upon several factor on the basis of which we conclude products. The factors are Temperature,catalyst,reagents, either what is the mechanism of reaction, stability of reactants and stability of products and alot more.

During reaction sometimes gas forms and sometimes not yea and well that also depends on the chemical reactivity and stability of product sometimes product found itself most stable releasing the gas evolving so it's been done itself and sometimes we add catalyst and adjust the reaction to extract that gas and get desirable product manually.

I wrote all i know if sorry if this is not what you're looking for :(

5 0

3 years ago

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Photosynthesis occurs and extra food is stored in which plant tissue\

frez [133]

Answer:Ground

Explanation:The roots help soak up moisture fromthe ground and can also store extra food made from photosynthesis

7 0

2 years ago

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Alkyl halides undergo ____________ reactions with Brønsted-Lowry bases. A ____________ is a sp² hybridized and trigonal planar a

emmasim [6.3K]

Answer:

Alkyl halides undergo SN2 reactions with Brønsted-Lowry bases. An ethene is a sp² hybridized and trigonal planar and contains a vacant p orbital. All SN2 reactions proceed with backside attack of the nucleophile, resulting in inversion of configuration at a stereognic center. Spreading out charge by the overlap of an empty p orbital with an adjacent σ bond is called hyperconjugation . Equilibrium favors the products of nucleophilic substitution when the leaving group is a weak base than the nucleophile. According the to Hammond postulate, the stability of the enthalpy determines the rate of its formation. The formation of equal amounts of two enantiomeric products from a single starting material is called racemic mixture . A lewis base is an electron-rich compound, which donates a pair of electrons to an electron deficient compound, forming a covalent bond.

6 0

3 years ago