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SashulF [63]
4 years ago
6

Why is it important to conduct more than one trial during a scientific investigation?

Chemistry
2 answers:
Bingel [31]4 years ago
7 0
With the chance there was uncontrolled variables, it is best to conduct multiple trials during one's investigation.
Jet001 [13]4 years ago
4 0
It is imperative to test various trials of a test to guarantee that your outcomes are accurate,reliable, and reproducible. On the off chance that you had mentioned a blunder for your objective facts in the primary trial,they ought to be mentioned clear by your objective facts in your second trial.
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When 0.40 mol Al is mixed with 0.40 mol Br2, the following reaction occurs: 2Al(s) + 3Br2(l) → 2AlBr3(s) Identify the limiting r
Lera25 [3.4K]

Answer:

d. The limiting reactant is Br2, and 0.13 mol Al should remain unreacted.

Explanation:

From the reaction, 2Al(s) + 3Br2(l) → 2AlBr3(s)

2 moles of Al combines with 3 moles of Br to form 2 moles of AlBr3

Hence 1 mole of Br combines with 2/3 moles of Al

or 0.4 moles of Br combines with 2/3×0.4 moles of Al or 0.267 Moles of Al leaving

0.4 - 0.267 = 0.133 moles of Al remaining unreacted

7 0
3 years ago
Can someone please help me?
Savatey [412]
A; Town A will be cooler than Town B because it is located near the peak of the mountain.
i believe is the correct answer
6 0
3 years ago
Which example is a container holding a heterogeneous mixture? * 1 point Bowl of clear chicken broth. Balloon filled with He gas.
Margarita [4]

Answer:

Bowl of clear chicken broth

Explanation:

A bowl of clear chicken broth is a heterogenous mixture.

  • A heterogenous mixture is one in which the constituents exists in at least two different phases.
  • A chicken broth is a heterogenous mixture which exists in the liquid - solid state.
  • The broth is made up of simmered meat, vegetables and other recipes together.

Such mixtures can be:

  1. Gas - liquids mixtures
  2. Liquid - solid mixtures
  3. Gas  - solid mixtures

A broth is an extract from cooking chicken. Some vegetables and extract are mixed together in a nutritious blend.

6 0
3 years ago
A student has a remote control for a television. The student points the
Gwar [14]

Answer:

The remote control sends low-energy infrared radiation to a light detector on the front of the television

Explanation:

The signal between a remote control and the TV controls consists of pulses of infrared light, which is invisible to the human eye

3 0
3 years ago
Which change will decrease the electric force between two positively charged objects? moving them closer together moving them fa
Nina [5.8K]

Answer:

Moving them farther apart

Explanation:

One can try to change the distance between the two positive charges in such a way that it increases the distance and decreased the electric force.

6 0
3 years ago
Read 2 more answers
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