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Vikentia
3 months ago
13

Max discovered a beaker full of transparent liquid in the science lab. He hypothesized that since the liquid is transparent like

water, it is water. He shared this conclusion with his friends. His friends questioned his conclusion, but Max had no evidence to back his thoughts. What step did Max miss in his scientific methods?
A.
Make an initial observation.
B.
Test a hypothesis by gathering data.
C.
Form a conclusion.
D.
State a hypothesis.
Chemistry
1 answer:
KiRa [2.9K]3 months ago
6 0

B. Verify a hypothesis by collecting evidence

Honestly, who thinks "oh there's a clear liquid in the lab? It must be water."

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Montrel takes a trip to Central America during the winter. He finds out that the temperature in Central America is about the sam
lorasvet [2795]

Answer:

C

Explanation

My teacher mentioned that, for instance, Florida tends to be warm, while Central America can have both hot and cold temperatures, and a jacket isn't necessary. I don't recall many details.

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A 100-meter sprint is a race using only the straight side of a racetrack. A 400-meter sprint is a race that makes one complete l
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3 months ago
(a) The original value of the reaction quotient, Qc, for the reaction of H2(g) and I2(g) to form HI(g) (before any reactions tak
KiRa [2933]

Response:

Here's my calculation

Clarification:

Assume the starting concentrations of H₂ and I₂ are 0.030 and 0.015 mol·L⁻¹, respectively.

We need to determine the initial concentration of HI.

1. We will need a chemical equation with concentrations, so let's compile all the information in one location.

H₂ + I₂ ⇌ 2HI

I/mol·L⁻¹: 0.30 0.15 x

2. Calculate the concentration of HI

Q_{\text{c}} = \dfrac{\text{[HI]}^{2}} {\text{[H$_{2}$][I$_{2}$]}} =\dfrac{x^{2}}{0.30 \times 0.15} =  5.56\\\\x^{2} = 0.30 \times 0.15 \times 5.56 = 0.250\\x = \sqrt{0.250} = \textbf{0.50 mol/L}\\\text{The initial concentration of HI is $\large \boxed{\textbf{0.50 mol/L}}$}

3. Plot the initial values

The graph below visualizes the initial concentrations as plotted on the vertical axis.

7 0
4 months ago
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