Answer:
Explanation:
When determining empirical formulas of hydrates we have to find the mass of water which left the hydrate when heating The sample. This amount of water calculated will provide us with the correct ratio of moles water / moles anhydrate since moles water > moles anhydrate. The mistake might have been done while determining the water that left the sample so then we see and impropre result in ratios.
the first,the thrid and the fourth are the affects of burning fossil fuels on the carbon cycle
Answer: The answer is: " 7.81 kg " .
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Explanation:
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Note the exact conversion: 1000 g = 1 kg ;
0.00781 g = ? kg :
So: To convert "0.0781 g" ; to "units in kg" ;
→ we multiply the value: 0.00781 g ; by "1000" ;
So: Given: " 0.00781 g " ;
→ we move the decimal point "3 (three) spaces forward" ;
to get: " 7.81 kg " .
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Hope this helps!
Wishing you the best in your academic pursuits
— and within the "Brainly" community!
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Answer and Explanation:
<em>Metallic bonding occurs between two or the same metals. In a metallic bonding structure, there is an electrostatic attraction between the positive metal ions leaving a sea of delocalised electrons. The sea of delocalised electrons allows metals to conduct electricity because the delocalised electrons are free to carry charge around the structure.</em>
<em>Pure metals are soft because there are layers of metal ions free to slide over each other as they are in a regular arrangement, pattern and size. </em>
<em>Alloys can be harder than pure metals because the different sizes of the atoms disturb the layers, stopping them from sliding over each other. Alloying a pure metal can let the metal become stronger and less reactive.</em>
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<em>hope it helped! Feel free to comment below with any questions! :)</em>
Answer: make a drainage system or make sure that the ground does not absorb the water from the rain and cause a landslide.
Explanation: To prevent frequent landlides you have to make suee there is and area for the rain to go so it does not get stuck in the mud and destabalize the mud
