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Fiesta28 [93]
3 years ago
9

When heating a solution to boiling on a hot plate, start by ___________. Then, turn the heat to ___________to start. If necessar

y, __________after waiting about ten minutes without seeing boiling.
Chemistry
1 answer:
Aleonysh [2.5K]3 years ago
5 0

Answer:

1. starting and stabilizing the stir function

2. a medium heat

3.turn up the heat setting

Explanation:

A chemical reaction can be defined as a chemical process which typically involves the transformation or rearrangement of the atomic, ionic or molecular structure of an element through the breakdown and formation of chemical bonds to produce a new compound or substance.

Some of the laboratory apparatus (equipment) used for conducting a chemical reaction are conical flask, Bunsen burner, beaker, tongs, crucible, round bottom flask etc.

When heating a solution to boiling on a hot plate, start by starting and stabilizing the stir function. Then, turn the heat to a medium heat to start. If necessary, turn up the heat setting after waiting about ten minutes without seeing boiling.

The safety precautions that must be taken when heating a solution to boiling on a hot plate;

I. A proper inspection of the round bottom flask for cracks, irregularities or any imperfection.

II. Ensure you avoid heating the flask while it is closed.

III. When suspending the flask on a hot plate, you should ensure that you use a clamp for stability.

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Determine the mass of the following.
Luba_88 [7]

Answer:

a ) 1876.14 grams CaBr2

b ) 19.78 grams N2

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Explanation:

5 0
3 years ago
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faust18 [17]

Answer:

CO2 & H2O

Explanation:

Anything on the right

6 0
3 years ago
The K w for water at 0 ∘ C is 0.12 × 10 − 14 . Calculate the pH of a neutral aqueous solution at 0 ∘ C.
dusya [7]

Answer:

pH = 7.46

Explanation:

2H₂O  ⇄  H₃O⁺  .  OH⁻          Kw = [H₃O⁺] . [OH⁻]

[H₃O⁺] = [OH⁻]

√0.12×10⁻¹⁴ = [H₃O⁺] → 3.46×10⁻⁸  M

- log  [H₃O⁺] = pH

- log 3.46×10⁻⁸ = pH → 7.46

6 0
3 years ago
Disagree or agree n provide evidence !!! pls n thank you​
stealth61 [152]

Answer: True

Explanation: There are many different types of reactions that can occur during a chemical reaction, a substance dissolving is one of them! often you will notice the following: fizzling, bubbles, color change, odor being produced, smoke. etc.

5 0
3 years ago
Si dos elementos tienen igual valor del número cuántico n y diferente l, ml y ms entonces deben estar en : El mismo orbital, per
OlgaM077 [116]

Answer:

El mismo nivel, pero diferente subnivel y orbital

Explanation:

En un átomo, el número cuántico principal n muestra el nivel de energía del electrón.

Si dos electrones tienen el mismo valor del número cuántico principal n, simplemente significa que están en el mismo nivel de energía.

Sin embargo, cuando los números cuánticos l y ml difieren, los electrones deben estar en diferentes subniveles y orbitales.

8 0
3 years ago
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