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adell [148]
2 years ago
12

Can you pls tell me advantages and disadvantages of chemistry in specific ​

Chemistry
1 answer:
katrin2010 [14]2 years ago
6 0

<em>Advantages</em>

Chemistry helps you to understand the world around you.

Basic knowledge of chemistry helps you to read and understand product labels.

Chemistry can help you make informed decisions.

Chemistry is at the heart of cooking.

A command of chemistry can help keep you safe!

<em>Disadvantages</em><em> </em>

It isn't a sustainable form of energy.

It can be expensive.

Some forms of chemical energy are quite rare.

It can produce harmful waste.

It can be used to create devastating weapons.

It offers short-term benefits for long-term consequences.

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Zinc metal (Zn) will react with aqueous hydrochloric acid (HCI aq) to produce aqueous zinc chloride (ZnCl2 aq) and hydrogen gas
Debora [2.8K]

Answer:

5

Explanation:

Here, we want to get the equation of the reaction between Hydrochloric acid and Zinc metal

Zinc metal displaces the hydrogen from hydrochloric acid to form zinc chloride

We have the equation of reaction as:

2HCl_{(aq)}\text{ + Zn}_{(s)}\text{ }\rightarrow\text{ ZnCl}_{2(aq)}\text{ + H}_{2(g)}

3 0
1 year ago
Caffeine, a stimulant found in coffee and soda, has the following elemental composition: 49.48% carbon, 5.19% hydrogen, 16.48% o
prisoha [69]

Answer:

Explanation:

C = 49.48

H = 5.19

O = 16.48

N = 28.85

ratio of moles

= 49.48 / 12 : 5.19 / 1 : 16.48 / 16 : 28.85 / 14

= 4.123 : 5.19 : 1.03 : 2.06

= 4 : 5 : 1 : 2

so the empirical formula = C₄ H₅O N₂

Let molecular formula = (  C₄ H₅ON₂ )ₙ ,

n ( 48 + 5 + 16 + 28 ) = 119.19

97 n = 194.19

n = 2 ( approx )

molecular formula = C₈ H₁₀O₂ N₄

3 0
3 years ago
What am I supposed to do using the Science Textbook? Please help!!!!!!!<br>See the picture above.
baherus [9]
It looks like part of the Periodic Table. Do you have to write down the most common Periodic Table elements? If so, then that's probably what you should do.
6 0
3 years ago
Which action must occur for an enzyme to catalyze a chemical reaction?
Butoxors [25]

Answer:

correct substrate to bind the active site of the enzyme.

Explanation:

For an enzyme to catalyze a chemical reaction it is very essential for the correct substrate to bind the active site of the enzyme.

The Active site consists of two parts

1.Binding site

2. Catalytic site

The binding site consists of amino acid residues that bind to the correct substrate while the catalytic site has the amino acids that lead to the catalysis.

The active site's shape is such that only the right substratum easily binds to it and thus the catalytic reaction occurs.

4 0
3 years ago
Describe two ways he could change the metal physically and two ways he could change the metal chemically to try to identify it.
slega [8]
Physical change is a change that occurs in a substance that does not change the identity of the substance. It does not alter the chemical structure of the molecules ehile chemical change involves the breaking of the bonds in the substance forming new substance. To identify a metal physically, we can use properties like their boiling and melting points. We can determine at what temperatures these metals melt or boil then from literature we compare the values. Another properties that can be looked upon to are hardness, color and density. For chemical methods, we can allow it to react with substances, that will produce precipitates containing the metal in question. Also, we can use other methods like titration method. All chemical methods involves the use of chemical reactions.
6 0
3 years ago
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