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Salsk061 [2.6K]
2 years ago
13

The simplest unit of matter that still retains the properties of an element is a(n) _____.

Chemistry
1 answer:
iogann1982 [59]2 years ago
3 0
<span>The simplest unit of matter that still retains the properties of an element is an "Atom".
Atom is the smallest particle of any unit that actually can exist retaining the properties of an element.  </span><span />
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How might you tell if a food contains an acid as one of its ingredients?
vladimir2022 [97]
We can collect a sample of that food and add a drop of blue litmus solution. If the color of the litmus solution changes to red, it contains an acid as one of its ingredients.
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3 years ago
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Colligative properties depend upon the ____. Select one: a. nature of the solute b. nature of the solvent c. number of solute pa
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The correct answer is C. Colligative properties only depend upon the number of solute particles in a solution but not on the identity or nature of the solute and solvent particles. I hope this anwers your question. 
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2 years ago
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One difference between mixtures and pure substances is that
defon

Answer:

The mixture is made up of different atoms and pure substance is made up of same type of atom.

The main difference is that mixture can be separated into its component by physical mean while pure substances can not be separated by physical process

Explanation:

Mixture:

  • The properties of the mixture are not same and contains the properties of all those component present in it.
  • it is a combination of one or more Pure substances and can be separated by simple physical methods.
  • it have varying boiling and melting point

Examples are:

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  • Salt water is mixture of water and NaCl and can be separated by physical mean.
  • Alloys: its a mixture of different metal
  • Air: mixture of gases

Pure Substance:

Pure substances are those made of same type of atoms all elements and compounds are pure substances.

  • it can not be separated by simple physical mean
  • it have very constant and consistent melting and boiling point

Examples are:

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  • All elements: all elements are pure substance made of same atoms
  • All compounds: can not be separated by physical mean.

8 0
3 years ago
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Write out the word equations for these reactions.<br> ) Hydrogen reacts with oxygen to form water.
ale4655 [162]

Answer:

H2O

Explanation:

PLS MARK ME TO THE BRAINLIST

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2 years ago
What volume will 0.875 moles of Kr occupy at STP
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<span> </span> <span>V = nRT/P = (0.875)(0.082057)(273)/(1) = 19.6 L</span>

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3 years ago
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