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SOVA2 [1]
3 years ago
14

The +3 charge more common than +2 charge for transition metals in the Fe group. What accounts for this trend?

Chemistry
1 answer:
Vedmedyk [2.9K]3 years ago
5 0
I think it’s D but check first because I might be wrong
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How many elements had been discovered by 1860
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(GIVING OUT BRAINLIEST)<br> Compare and contrast the conditions required for snow and rain to form.
Vanyuwa [196]

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Snow forms when the atmospheric temperature is at or below freezing, and there is a minimum amount of moisture in the air. Within a cloud, water droplets condense onto one another, causing the droplets to grow. When these water droplets get too heavy to stay suspended in the cloud, they fall to Earth as rain

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6 0
2 years ago
Explain step by step, please!
konstantin123 [22]

Answer:

10. Stacey

11. 7.86 g/cm^3 (3dp)

OR 786 kg/m^3 (SI units)

Explanation:

10. The correct exact answer for 10 is 26.169 (6.71x3.9). While Sam was correct in the precision of the number (2dp just like the given measurements), he was incorrect in the number itself. While Stacy's number was not as precise as Sam's (0dp), it is correctly rounded to the nearest whole number, therefore Stacy is correct.

11. The formula for density is mass/volume. The mass here is 264g and the volume is 33.6ml, therefore the density is 7.86 (3 sig figs because given values had 3) g/cm^3, because the mass was given in grams and 1ml = 1cm^3. Converted to SI units it is 786 kg/m^3.

Hope this helped!

4 0
3 years ago
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