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Marina86 [1]
3 years ago
9

Can y’all help me with this last bit of my hw? I don’t really understand it and I would really appreciate it if you could help m

e.
The questions to the picture is below:

A chemist mixer two substances together: a colorless liquid with a strong strong smell and a white solid with no smell. The substances’ repeating groups of atoms are shown on the left. After they were mixed, the chemist analyzed the results and found two substances, One ending substance had the resorting group of atoms shown above on the right.

Is the ending substance the same as the colorless liquid? What happened to the atoms of the starting substances when the ending substances formed? Be sure to explain your answers to both of these questions.

Chemistry
1 answer:
inessss [21]3 years ago
6 0
"A mineral is a homogeneous (which means composed of parts or elements that are all of the same kind) naturally occurring substance with a definite but not necessarily fixed chemical composition. Most minerals are solids with an ordered atomic arrangement, and most are inorganic in the chemical sense of that word".
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How does using a jack make changing a tire easier
Nuetrik [128]

when using a jack it lifts up the car for you, giving you the ability to remove and replace a tire without the weight of the car on the tire.

8 0
3 years ago
The ph of lemon juice is approximately 2.4. at this ph, the hydronium ion concentration is closest to which value? 1. 250 m 2. 4
babymother [125]

Answer is: concentration of hydrogen cations in lemon juice is 4.00 × 10−3 m.

pH = 2.4.

pH = -log[H₃O+].

[H₃O+] = 10∧(-pH).

[H₃O+] = 10∧(-2.4).

[H₃O+] = 0.004 mol/L.

pH value (potential of hydrogen - [H+]) is a logarithmic scale that specify the acidity or basicity of an aqueous solution. When pH is greater than seven, aqueous solution is basic, below seven is acidic and when pH is equal seven, solution is neutral.
8 0
3 years ago
Read 2 more answers
Why can't chemical changes be undone? Because of the chemical properties. Because Mark is an idiot. Because they need energy. Be
Volgvan

Answer: Because new substances are formed.

Explanation: A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.  Once a chemical change occurs it cannot be undone due to the change in chemical identity.  The creation of a new substance is not reversible.  

8 0
3 years ago
Why do you move the .0100 - x to the left side of the equal sign?
dlinn [17]
Because negatives are on the left and positives are on the right , if it was .0100 +x it would move to the right since +x implies that the x is positive.
5 0
3 years ago
You dissolve 14 g of Mg(NO3)2 in water and dilute to
mart [117]

Answer:

0.127M

Explanation:

Molarity of a solution = number of moles (n) ÷ volume (V)

Molar mass of Mg(NO3)2 = 24 + (14 + 16(3)}2

= 24 + {14 + 48}2

= 24 + 124

= 148g/mol

Using the formula, mole = mass/molar mass, to convert mass of Mg(NO3)2 to mole

mole = 14g ÷ 148g/mol

mole = 0.095mol

Volume = 750mL = 750/1000 = 0.75L

Molarity = 0.095mol ÷ 0.75L

Molarity = 0.127M

3 0
3 years ago
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