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lina2011 [118]
3 years ago
9

The zinc case in the dry cell battery serves as the

Chemistry
1 answer:
Bogdan [553]3 years ago
5 0
C anode, forgive me if I am wrong
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Practice Problems Exercise 8.6 Classify each of the following reactions in as many ways as possible.4N H3 (g) 5 O2 (g) n 4NO(g)
nikklg [1K]

Explanation :

(a) 4NH_3(g)+5O_2(g)\rightarrow 4NO(g)+6H_2O(g)

This reaction is combustion reaction in which an oxygen react with a molecule to give its corresponding oxides ans water molecule.

(b) S_8(s)+8O_2(g)\rightarrow 8SO_2(g)

This reaction is a redox reaction or oxidation-reduction reaction in which sulfur get oxidized and oxygen get reduced.

(c) 2Al(s)+3Cl_2(g)\rightarrow 2AlCl_3(s)

This reaction is a combination reaction in which the two reactants molecule combine to form a large molecule or product.

(d) 2AlN\rightarrow 2Al(s)+N_2(g)

This reaction is a decomposition reaction in which a large molecule or reactant decomposes to give two or more molecule or products.

(e) BaCl_2(aq)+Na_2SO_4(aq)\rightarrow BaSO_4(s)+2NaCl(aq)

This reaction is a double displacement reaction in which the cation of two reactants molecule exchange their places to give two different products.

(f) 2Cs(s)+Br_2(l)\rightarrow 2CsBr(s)

This reaction is a combination reaction in which the two reactants combine to form a large molecule or product.

(g) KOH(aq)+HCl(aq)\rightarrow H_2O(l)+KCl(aq)

This reaction is a double displacement reaction in which the cation of two reactants molecule exchange their places to give two different products.

(h) 2C_2H_2(g)+5O_2(g)\rightarrow 4CO_2(g)+2H_2O(l)

This reaction is combustion reaction in which a hydrocarbon react with an oxygen to give carbon dioxide and water as a products.

6 0
3 years ago
4. Which change to a DNA molecule would have the least effect on an organism?
Sav [38]

Answer: Change in a single nitrogen base in the DNA sequence will not have any significant effect on the organism.

So A

Explanation:

This is known as point mutation and it does not have any significant change in the protein and it is least harmful type of DNA mutation.

5 0
3 years ago
Ideal gas law, Please help me it's due soon
ICE Princess25 [194]

Answer:

is the equation of state of a hypothetical ideal gas

Explanation:

its formula is PV=nRT

5 0
3 years ago
Which of the following is a value of biodiversity?
Sever21 [200]
Biodiversity has a fundamental value to humans because we are so dependent on it for our cultural, economic, and environmental well-being. Some argue that it is our moral responsibility to preserve the Earth’s incredible diversity for the next generation. Others simply like knowing that nature’s great diversity exists and that the opportunity to utilize it later, if need be, is secure. Scientists value biodiversity because it offers clues about natural systems that we are still trying to understand. Arguably, the greatest value to humans, however, comes from the ?ecosystem services? it provides.

Biodiversity forms the backbone of viable ecosystems on which we depend on for basic necessities, security, and health. By breaking down plant and animal matter, for example, insects and other invertebrates make nutrients available to plants and are integral to the carbon and nitrogen cycles. Other species pollinate crops, an essential service for farmers. Healthy ecosystems can mitigate or prevent flooding, erosion, and other natural disasters. These ecosystem services also play a hand in the functioning of our climate and in both air and water quality.

4 0
3 years ago
How. does knowing the weather forecast affect people making decisions each day?
Sladkaya [172]
Just an example.. This can affect people because it can cause people to bring umbrellas wear rain coats of it were to rain.
5 0
3 years ago
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