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Scorpion4ik [409]
3 years ago
9

PLEASE HELPPPP How would life on earth be different if it axis were not tilted which respect to its orbit

Chemistry
2 answers:
olga2289 [7]3 years ago
5 0
The season would be much shorter
Licemer1 [7]3 years ago
4 0
Answer - D. The seasons would be much shorter
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All the bases are not alkali ​why
Vanyuwa [196]

Alkali are soluble bases, however not all bases are soluble in water, therefore not all bases are Alkali.

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2 years ago
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highlight why it is important to evaluate important assessment studies before any development could be made on the environment​
Kay [80]

Answer:

Essentially, an EIA is designed to identify the potential risks of a project (e.g., infrastructure development such as a dam) to environmental and human well-being and identify measures to eliminate and/or mitigate these risks. This can be done by replacing and/or modifying planned activities to reduce impacts

Explanation:

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2 years ago
If Salt is NaCl, what atoms does the compound contain?
allochka39001 [22]
Na is the elemental abbreviation for sodium, and Cl is the abbreviation for chlorine.
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8 0
2 years ago
2NH4Cl(s)+Ba(OH)2⋅8H2O(s)→2NH3(aq)+BaCl2(aq)+10H2O(l) The ΔH for this reaction is 54.8 kJ . How much energy would be absorbed if
irakobra [83]
1) Chemical equation

<span>2NH4Cl(s)+Ba(OH)2⋅8H2O(s)→2NH3(aq)+BaCl2(aq)+10H2O(l)

2) Stoichiometric ratios

2 mol NH4Cl(s) : 54.8 KJ

3) Convert 24.7 g of NH4Cl into number of moles, using the molar mass

molar mass of NH4Cl = 14 g/mol + 4*1 g/mol + 35.5 g/mol = 53.5 g/mol

number of moles = mass in grams / molar mass

number of moles = 24.7 g / 53.5 g/mol = 0.462 moles

4) Use proportions:

2 moles NH4Cl / 54.8 kJ = 0.462 moles / x

=> x = 0.462 moles * 54.8 kJ / 2 moles = 12.7 kJ

Answer: 12.7 kJ
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7 0
3 years ago
50 J of work was done on a system, as a result of which 29 J of heat energy was removed from it. How would this affect the inter
alexandr402 [8]

Answer:

Work done=50J

Heat removed=29J

Now

\\ \sf\longmapsto \Delta E=-50+29

\\ \sf\longmapsto \Delta E=-21J

Hence the internal energy would decrease by 21J

  • Option B is correct

7 0
2 years ago
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