If you want to test whether a rock has calcite in it you could use the ?

1 answer:

6 0

You could use the "Vinegar Test." Students can use vinegar instead of hydrochloric acid for an introduction to the acid test which tests calcite.

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What category is most of the elements part of

rjkz [21]

Answer:

transition metals

Explanation:

they're the elements in yellow in the picture

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2 years ago

What is the pH of a 4.7 x 10-9 M HCl solution? *

ValentinkaMS [17]

11.21 or 2.93 I think

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3 years ago

Physical Meaning of pKa Which of the following aqueous solutions has the lowest pH: 0.1 M HCl; 0.1 M acetic acid (pKa = 4.86); 0

ser-zykov [4K]

Answer:

<em>The solution with the lowest pH is 0.1 M HCl.</em>

Explanation:

Since the three solutions have the same concentration (0,1M) it is only necessary to look at the pKa of each solution.

Also, knowing that a higher pKa means a lower Ka, because pKa = -Log (Ka). Thus, a lower Ka means a lower concentration of protons with a higher pH ( pH = -Log [H+].

The HCl doesn't have a pKa because is a strong acid that dissociates completely. Therefore, this solution produces a lower pH. Looking at the pKa of acetic acid and formic acid solutions, the second with the lowest pH is the formic acid solutions and the higher pH is for the acetic acid solution.

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3 years ago

1.00-degree increase on the Celsius scale is equivalent to a 1.80-degree increase on the Fahrenheit scale. The temperature of a

castortr0y [4]

48.0°C×1.80 = 86.4°F

6 0

2 years ago

The temperature in your town is 31°F. The radio announcer says that the temperature will drop 15 degrees. What will the temperat

hoa [83]

Answer:

The temperature of the town will be 15°F.

The equation showing the final temperature after drop say x degrees can be written as: