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Novay_Z [31]
3 years ago
9

Which of the following best expresses the law of conservation of mass in a

Chemistry
1 answer:
slava [35]3 years ago
5 0

Answer:

A: In a chemical reaction, the mass of the products equals the mass of the reactants.

Explanation:

This is according to law of conservation of mass which states that ;

" Mass can neither be created nor be destroyed, it only changes from one form to another during a chemical reaction."

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Which of these is the main difference between aerobic respiration and anaerobic respiration?
Anettt [7]

Answer:

Aerobic Respiration

It can be found in the cytoplasm and the mitochondria.

Glucose breaks down into carbon dioxide and water.

Anaerobic Respiration

It can be found only in the cytoplasmic.

Glucose breaks down into ethyl alcohol, carbon dioxide and energy

6 0
3 years ago
How many moles of Ag can be produced if 350. g of Cu are reacted with excess AgNO3 according to the equation Cu(s) + 2AgNO3(aq)
Ksju [112]
Hello.

balance the equation first 
<span>Cu + 2AgNO3 ----> [2Ag] + Cu(NO3)2 
</span>

<span>Now set up the equation </span>
<span>350gCu*(1molCu/ 63.546g Cu) * (2molAg/1molCu) * (107.8682g Ag/1molAg)
 </span>

<span>Cancel out 1molCu with 1molCu, and cancel out 2molAg with 1molAg (it still remains 2mol Ag) </span>

<span>You are left with </span>
<span>350gCu*(1/63.546g Cu)*(2Ag/1)* (107.8682g Ag/1) 
</span>

<span>350gCu*1*2*107.8682= 75507.74g 
</span>

<span>now divide 75507.74g by 63.546g 
</span>
<span>you get [1188.2374972460896g Ag]
</span>
Have a nice day
3 0
3 years ago
Read 2 more answers
Which of these is the most likely use of an electromagnetic wave which has wavelength shorter than microwaves but longer than vi
alexira [117]
Out of the choices given, the most likely use of an electromagnetic wave which has a wavelength shorter than a microwave but longer than visible light is going to be D. to detect the location of objects that emit heat. 
5 0
3 years ago
Write E in the blank if the material is heterogeneous or O if it is homogeneous.
Advocard [28]

Answer/Explanation:

Wood: E

Freshly brewed black coffee: O

Water: O

Lucky Charms: E

Salt: O

Dirt: E

Sausage and mushroom pizza: E

Air: O

Milk: O

Gold: O

Any mixture that looks the same through the substance is homogenous. The different parts are unable to be visibly seen. (Any periodic element is homogenous)

Any mixture that can be easily determined a mix and cannot be evenly separated or dispersed is heterogenous.

8 0
3 years ago
Draw the structural formula for the major organic product(s) formed when acetyl chloride reacts with butanol in pyridine.
Degger [83]
Acyl chloride is considered as the most reactive derivative of carboxylic acids. Acetyl chloride when reacted with Butanol produces Butyl Acetate as a Mojor product.
This reaction is carried out in the presence of pyridine. Pyridine acts as a catalyst. And this catalyst is often used in esterification reactions.
The reaction along with mechanism is shown below,

8 0
4 years ago
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