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otez555 [7]
4 years ago
11

What is chemsity and what does it have to do with science

Chemistry
1 answer:
MatroZZZ [7]4 years ago
4 0
Chemistry is the study of the composition of matter and the ways in which matter interacts, combines, and changes under certain conditions.  Although not as fundamental as physics, chemistry is a very basic and broad science.  It helps us explain bodily interactions and natural process (biochemistry), it helps us to manufacture new medications, and true chemistry research will always follow the scientific method.
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A chemical reaction is when substance are changed into other substances.<br><br> True or False
Dmitriy789 [7]

Answer:

True

Explanation:

coz it is when one or more substances are mixed to produce one substance

5 0
2 years ago
Read 2 more answers
Water pollution ________ salt water levels in the sea.
brilliants [131]

Answer:

maintain

Explanation:

i don't know it's a guess

8 0
3 years ago
The monomer of poly(vinyl chloride) has the formula C2H3Cl. If there are 1,565 repeat units in a single chain of the polymer, wh
monitta

Answer:

\large \boxed{9.780 \times 10^{4}\text{ u}}

Explanation:

The molecular mass of a monomer unit is:

C₂H₃Cl = 2×12.01 + 3×1.008 + 35.45 = 24.02 + 3.024 + 35.45 = 62.494 u

For 1565 units,

\text{Molecular mass} = \text{1565 units} \times \dfrac{\text{62.494 u}}{\text{1 unit }} = \mathbf{9.780 \times 10^{4}}\textbf{ u}\\\\\text{The molecular mass of the chain is $\large \boxed{\mathbf{9.780 \times 10^{4}}\textbf{ u}}$}

8 0
3 years ago
Explain why diamonds are useful for electrodes in batteries
umka21 [38]

Answer:

Diamonds have a broader potential window of 3 to 5 volts.

Explanation:

The minimum voltage required for electrolysis is called potential window. Electrodes such as titanium electrodes and those made of noble metals have a potential window of about 2 volts. Diamond has a potential window of 3 to 5 volts that makes it preferentially start a redox reaction of a substance that is difficult to electrolyze. This facilitates electrolysis of substance that were difficult to decompose in normal electrochemical systems.

8 0
4 years ago
Why does iron have no oxidation state corresponds to loss of all it's valence electrons?
olganol [36]

Answer:

When an element loses an electron, its oxidation number increases.

Explanation:

The oxidation number of an element indicates the hypothetical charge of an atom in a compound. It is hypothetical because, in the context of a compound, the elements may not necessarily be ionic. When the number of electrons associated with an atom changes, its oxidation number also changes. When an element loses an electron, its oxidation number increases.

7 0
4 years ago
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