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Artemon [7]
3 years ago
6

Why 5.67 + 0.00032 = 5.67 (and not 5.7 or 5.67032 or any other number).

Chemistry
1 answer:
vlabodo [156]3 years ago
5 0

The answer must show the lowest number of significant number of significant places in the decimal region

Explanation:

5.67 + 0.00032 adds up to 5.67 because the least number of significant figures in the decimal place 2.

  • To add up two numbers, that are in decimal places.
  • Identify the number of significant figures in them
  • Their addition should sum up to a value no more than the significant figures to the right of the decimal having the lowest accuracy.

           5.67

        + 0.00032

to the right of the decimal, they have two significant numbers.

The answer should also be this way.

learn more:

Significant figures brainly.com/question/6443737

#learnwithBrainly

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If you had 24 moles of hydrogen gas how many moles of ammonia (NH3) would be produced?
dedylja [7]

Answer:

8

Explanation:

You are going to divide the 24 moles of H by the moles of H used in Ammonia. In this case 3

24/3=8

8 0
3 years ago
Help PlS AFAP and thank you so much
Triss [41]

Answer:

B

Explanation:

idk how to explain, B is the definition of conduction

8 0
3 years ago
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The Hall process for the production of aluminum involves the reaction of aluminum oxide with elemental carbon to give aluminum m
topjm [15]

Answer:

  • <u><em>1.7 × 10³ kg of ore.</em></u>

Explanation:

Call X the amount of aluminum ore mined to produce 1.0 × 10³ kg the aluminum metal.

Then, taking into account the yield of the reaction (82 % = 0.82) and the percent of aluminun in the ore (71% = 0.71), you can write the following equation:

  •  X         ×          71%                ×       82%     =     1.0 × 10³ kg

         ↑                      ↑                              ↑                     ↑

(mass of ore)    (% of Al in the ore)        (yield)        ( Al metal to obtain)

You must just simplify, solve and compute:

  • 0.71 × 0.82 × X = 1,000
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Round to two significant figures; 1,700 kg = 1.7 × 10³ kg of ore ← answer.

6 0
3 years ago
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Hannah wants to make some toast for breakfast, but she has 3 minutes before she has to leave for school.
marusya05 [52]

Answer: increase the temperature of the toaster oven.

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3 0
3 years ago
Consider this chemical reaction, where moving from left to right represents moving forward in time. A five panel comic strip. In
yulyashka [42]

Answer:

The reaction reaches equilibrium at the fourth panel.

Explanation:

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Although, for chemical equilibrium, the right term for this equilibrium is dynamic equilibrium; the rate of forward reaction balances the rate of backward reaction, but concentrations can keep changing.

The point where equilibrium is achieved is when exactly when we reach the panel where the spheres that make up this panel is the same as the next panel and the next, that is, the specific colour and number of spheres start to become unchanged.

And from the description given in the question,

- In the first panel, there are ten large red spheres.

- In the second panel, there are 8 large red spheres and two small blue spheres.

- In the third panel, there are six large red spheres and four small blue spheres.

- In the fourth panel, there are four large red spheres and six small blue spheres.

- In the fifth panel, there are four large red spheres and six small blue spheres.

It is evident that the make-up of the spheres have become the same as at the fourth and fifth panel. This means that the first point where this final configuration of spheres first appeared is the fourth panel.

Hence, equilibrium is first reached at the fourth panel.

Hope this Helps!!!

6 0
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