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zalisa [80]
3 years ago
13

A substance that can be separated into two or more substances only by a chemical change is

Chemistry
1 answer:
Yuliya22 [10]3 years ago
5 0
<span>A substance that can be separated into two or more substances only by a chemical change is </span><span>known as a </span><span>heterogeneous</span><span> mixture</span>
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Which observation about methane (ch4) can be explained using the orbital hybridization theory?
MissTica
<span>All 4 C-H bonds are identical.

Hybridisation or hybridization is the idea of blending atomic orbitals into new hybrid orbitals, with various energies, shapes, and so on, than the component atomic orbitals, appropriate for the matching of electrons to make chemical bonds in valence bond theory.
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7 0
3 years ago
What will be the cost of gasoline for a 4,700-mile automobile trip if the car gets 41 miles per gallon, and the average price of
NARA [144]
  • Answer:

<em> $ 434.40</em>

  • Explanation:

<em>41 miles ............ 1 gallon</em>

<em>4700 miles .......x gallon</em>

<em>x = 4700×1/41 = 114.63 gallons</em>

<em />

<em>114.63 gallons×$3.79 ≈  $ 434.40</em>

3 0
4 years ago
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Sediment spreads horizontality and it goes from youngest on top to oldest on bottom. When sediment deposits in water, it also sp
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My answer will be C. Law of Original lateral continuity. :)
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3 years ago
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What mass of magnesium would combine with exactly 16.0 grams of oxygen
TEA [102]
1.65g MgO = 1g Mg
1.65 - 1 = 0.65 g of O in MgO

solve it using proportion:
1g Mg / 0.65g O = x (g) Mg / 16g O
or 1 / 0.65 = x / 16

24.6 g is the answer.

if 1 gram of oxygen requires 1.65 grams of Mg
then 16 grams of oxygen will require 16 ( 1.65) or 26.4 grams.
3 0
4 years ago
A lime has a [H+] concentration of 0.0120 M.<br><br> What is the pH of the lime? 3 sig figs
Novosadov [1.4K]

Answer: pH= 1.92

Explanation:

pH= -log[H+]

pH= -log[0.012]

= 1.92

4 0
3 years ago
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