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Oduvanchick [21]
3 years ago
9

One of your classmates is having trouble understanding ions. Explain the formation of an action like this:

Chemistry
1 answer:
Annette [7]3 years ago
7 0
Ions are electrons neutrons and protons like it's a way of saying them without being specific and calling them electrons or protons or anything like that

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Which property of matter is conserved in chemical reactions and shown by balanced equations? mass volume density shape
den301095 [7]

Answer:mass

Explanation:

I took the quiz

3 0
3 years ago
Read 2 more answers
Speed and velocity please help(science)
musickatia [10]
4452 Meters because 1484 times 3
4 0
3 years ago
What is the mass number of 207Pb ? A: 289 B: 207 C: 125 D: 82
Sergio [31]
207 is the mass number. 82 would be the atomic number
3 0
3 years ago
Student carries out a titration to determine the concentration of a solution of
Nimfa-mama [501]

The concentration of the Nitric acid solution : 0.114 M

<h3>Further explanation  </h3>

Titration is a procedure for determining the concentration of a solution (analyte) by reacting with another solution whose known concentration (usually a standard solution) is called the titrant. Determination of the endpoint/equivalence point of the reaction can use indicators according to the appropriate pH range  

Titrations can be acid-base titration, depositional titration, and redox titration. An acid-base titration is the principle of neutralization of acids and bases  

Reaction

HNO₃ + NaOH → NaNO₃ + H₂O​

Concentration a standard solution  of sodium hydroxide :  0.0998 mol/dm³ , and the volume = 25 cm³

moles NaOH=

\tt mol=M\times V\\\\mol=0.0998\times 25\\\\mol=2.495~mlmoles

<em>From the equation, mol ratio HNO₃ : NaOH = 1 : 1, so mol HNO₃ = mol NaOH=</em><em>2.495 mlmoles</em>

<em></em>

The volume of HNO₃ = 21.8 cm³, so the concentration :

\tt M=\dfrac{n}{V}\\\\M=\dfrac{2.495}{21.8}\\\\M=0.114

7 0
2 years ago
there are 28L of soup in a pot. Marshall serves 400mL in each bowl. If he fills 16 bowls how much soup is left in the pot? in li
Ne4ueva [31]
Total in pot=28 L
400 mL in each bowl
16 bowls filled
1000mL=1L
16 bowls(400mL/1 bowl)=6400mL
6400mL(1L/1000mL)=6.4L
28L-6.4L=21.6 L
5 0
3 years ago
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