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Anestetic [448]
3 years ago
9

1. A student combined silver nitrate and sodium

Chemistry
1 answer:
Tcecarenko [31]3 years ago
6 0

Answer:

150.08 g

Explanation:

According the law of conservation of mass, mass can neither be created nor destroyed but is converted from one form to another.

As a result of this, the total mass of reactants must be equal to the total mass of products.

If this is so, we have been told that the mass of AgCl is 150.15 g, the total mass of products is 300.23g.

Therefore; mass of NaNO3 = 300.23 g - 150.15 g = 150.08 g

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To determine the concentration of a sample of calcium hydroxide, 1.45M HCl is added drop-wise using a burst. Write the balanced
GenaCL600 [577]

Answer:

H^+(aq) + OH^-(aq) —> H2O(l)

Explanation:

We'll begin by writing the balanced equation for the reaction.

2HCl(aq) + Ca(OH)2(aq) —> CaCl2(aq) + 2H2O(l)

Ca(OH)2 is a strong base and will dissociates as follow:

Ca(OH)2(aq) —> Ca^2+(aq) + 2OH^-(aq)

HCl is a strong acid and will dissociates as follow:

HCl(aq) —> H^+(aq) + Cl^-(aq)

Thus, In solution a double displacement reaction occurs as shown below:

2H^+(aq) + 2Cl^-(aq) + Ca^2+(aq) + 2OH^-(aq) —> Ca^2+(aq) + 2Cl^-(aq) + 2H2O(l)

To get the net ionic equation, cancel out Ca^2+ and 2Cl^-

2H^+(aq) + 2OH^-(aq) —> 2H2O(l)

H^+(aq) + OH^-(aq) —> H2O(l)

7 0
3 years ago
Aplant whose seeds are exposed rather than protected by fruit is called sli)
Sergeu [11.5K]

Answer:

Ik Gymnosperms

Explanation:

term that means naked seeds

4 0
3 years ago
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How could you interpret the events taking place on a molecular level in the images seen here? A) Kinetic energy decreases from l
MaRussiya [10]

i believe the answer is, b. heat energy is continuously added at each step. As energy is added, the molecular motion/kinetic energy increases, and matter changes state. In the last state, plasma, enough energy has been added to cause the atoms to disassociate into ions. 

hope this is right! :33

5 0
3 years ago
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Lanthanides and Actinides are metals, nonmetals, or metalloids.
Neko [114]
They are the same easily answer metals all the way
7 0
4 years ago
The reaction N O space plus thin space O subscript 3 space rightwards arrow space N O subscript 2 space plus thin space O subscr
nikklg [1K]

Answer:

4.3 × 10⁻⁵ M s⁻¹

Explanation:

Step 1: Given data

  • Rate constant (k):  2.20 × 10⁷ M⁻¹s⁻¹
  • Concentration of NO ([NO]): 3.3 × 10⁻⁶ M
  • Concentration of O₃ ([O₃]): 5.9 × 10⁻⁷ M
  • First order with respect to both NO and O₃

Step 2: Write the balanced reaction

NO + O₃ ⇒ NO₂ + O₂

Step 3: Calculate the reaction rate

The rate law is:

rate = k × [NO] × [O₃]

rate = 2.20 × 10⁷ M⁻¹s⁻¹ × 3.3 × 10⁻⁶ M × 5.9 × 10⁻⁷ M

rate = 4.3 × 10⁻⁵ M s⁻¹

6 0
4 years ago
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