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butalik [34]
3 years ago
10

Balance these equations. NO LINKS!!

Chemistry
1 answer:
dezoksy [38]3 years ago
4 0

Answer:

3 Cu (N O3)2 + 2 Al (O H)3 ---- 2 Al (N O3)3 + 3 Cu (O H) 2

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If 18.7ml of 0.01500M aqueous HCl is required to titrâtes 15.00ml of an aqueous solution of NaOH to the equivalence point, what
sweet [91]

Answer:

0.0187 M

Explanation:

Step 1: Write the balanced neutralization reaction

NaOH + HCl ⇒ NaCl + H₂O

Step 2: Calculate the reacting moles of HCl

18.7 mL of 0.01500 M HCl react.

0.0187 L × 0.01500 mol/L = 2.81 × 10⁻⁴ mol

Step 3: Calculate the reacting moles of NaOH

The molar ratio of HCl to NaOH is 1:1. The reacting moles of NaOH are 1/1 × 2.81 × 10⁻⁴ mol = 2.81 × 10⁻⁴ mol.

Step 4: Calculate the molarity of NaOH

2.81 × 10⁻⁴ moles are in 15.00 mL of NaOH.

[NaOH] = 2.81 × 10⁻⁴ mol/0.01500 L = 0.0187 M

6 0
3 years ago
A 40.0-L sample of fluorine is heated from 90.0°C to 186.0°C. What volume will the sample occupy at the higher temperature?
jasenka [17]

Answer:

The volume will be 82.67 L

Explanation:

Charles's Law is the relationship between the volume and temperature of a certain amount of ideal gas. In this way, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the ratio between volume and temperature will always have the same value:

\frac{V}{T} = k

Having a certain volume of gas V1 that is at a temperature T1 at the beginning of the experiment, by varying the volume of gas to a new value V2, then the temperature will change to T2, and it will be true:

\frac{V1}{T1} =\frac{V2}{T2}

In this case, you know:

  • V1= 40 L
  • T1= 90 °C
  • V2= ?
  • T2= 186 °C

Replacing:

\frac{40L}{90C} =\frac{V2}{186 C}

Solving:

V2=\frac{40L}{90C} *186 C

V2= 82.67 L

<u><em>The volume will be 82.67 L</em></u>

5 0
3 years ago
Which of the following statements is true?
GarryVolchara [31]

Answer:

RTBWETERTBWETBWETWTBTBAnswer:

Explanation:

Answer:

Explanation:

Answer:

BSRBTSTR

Explanation:

Answer:ETRTSBT

REBREGERB

Explanation:

Answer:

REBRBETSERTETREERSTSER

Explanation:SETRSBE

Answer:RETERTSE

TBESRBTBTRE

Explanation:

Explanation:

5 0
2 years ago
An unbalanced chemical equation is shown:
Sati [7]

Answer:

1. Two to decompose

Explanation:

It's going to be a decomposition so you can eliminate answers 3 and 4. It is a decomposition because it is splitting apart. Then you can figure out that it is going to be two instead of four by balancing the equation

H2O2 → 2H2O + O2

2H_{2}O_{2}  → 2H_{2}O + O_{2}

6 0
3 years ago
Read 2 more answers
PERIODIC TABLE LOVERS HELP ME WITH THIS AND ILL PUT U ON BRAINLIEST !
AysviL [449]

Answer:

an educated guess of f and i

Explanation:

8 0
3 years ago
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