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Veronika [31]
3 years ago
8

Could a mixture be made up of only one element and no compounds​

Chemistry
1 answer:
Firdavs [7]3 years ago
5 0

Yes. A mixture can be made up of just elements without the use of a compound, you can also just use compounds in a mixture without any elements

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Help me please, i would really appreciate it
____ [38]

Answer:

analytic chemistry

Explanation:

Analytical chemistry uses tests to discover ingredients in a substance. A pool worker tests the water to learn how much chlorine it contains. A nutritionist analyzes food to learn about the nutrients in it. Biochemistry is the study of chemistry in the body.

4 0
3 years ago
Read 2 more answers
A sample of lemon juice is found to have a pH of 2.3. What is the concentration of hydrogen ions in the lemon juice?
Elenna [48]

Answer: It's equal to 10^(-2.3), or 0.00501 M, or 5.01 * 10^-3 moles/Liter

Explanation:

Well, pH = - log[H+]

Or, in words, pH is equal to -1 multiplied by the logarithm (base 10) of the hydrogen ion concentration.   So you have 2.3 = -log[H+].    We want to isolate the H+, so let's start simplifying the right hand side of the equation. First, we multiply both sides by -1.   -2.3=log[H+]   Now, the definition of a logarithm says that if the log (base 10) of [H+] is -2.3, then 10 raised to the -2.3 power is [H+]   So on each side of the equation, we raise 10 to the power of that side of the equation.   10^(-2.3) = 10^(log[H+])   and because 10^log cancels out...   10^(-2.3) = [H+]   Now we've solved for [H+], the hydrogen ion concentration!

7 0
3 years ago
A chocolate chip cookie can be separated by physical means, and it is not the same throughout.
yarga [219]
As a heterogeneous mixture
6 0
3 years ago
Read 2 more answers
When you do a displacement reaction with iron and copper what is the orange metal called
laiz [17]
It is called rust and it forms when water soaks into the metal forming a chemical reaction.
5 0
3 years ago
What are two characteristics for bases.
Burka [1]

Answer:

slippery, often used as cleaning products, have a high pH, things like bleach and laundry detergent

Explanation:

8 0
3 years ago
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