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Vadim26 [7]
3 years ago
6

Help plssss The question is in the picture above

Chemistry
2 answers:
Paul [167]3 years ago
8 0

Answer:

The answer is : A

schepotkina [342]3 years ago
5 0

Answer:It is A

Explanation:

Because you a have a girl that knows everything

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Does anyone know if these are correct? if not can anyone tell me what the answers are?
Stells [14]

Answer:

16. correct

17. correct

18. correct

19. correct

4 0
3 years ago
Naturally occurring copper is 69.15% copper-63 (atomic mass = 62.93 amu) and 30.85% of some other isotopic form of copper. what
agasfer [191]
<span>64.94 First, write out an expression about what we know 0.6915 * 62.93 + 0.3085 * x = 63.55 Now solve for x 0.6915 * 62.93 + 0.3085 * x = 63.55 43.5161 + 0.3085 * x = 63.55 0.3085 * x = 20.03391 x = 64.93972 Rounding the answer to 2 decimal places gives x = 64.94</span>
6 0
3 years ago
How many electrons does silver have to give up in order to achieve a pseudo-noble-gas electron configuration? 2 4 3 1?
posledela
Silver has to give up one electron in order to achieve a pseudo-noble gas electronic configuration.<span />
6 0
4 years ago
Read 2 more answers
Which of the following elements is least likely to form a cation that will then form an ionic bond with an ion of a Group 7A ele
ch4aika [34]
Iodine is a group 7A element. The halogens form anions because of their high electronegativities, so Iodine is unlikely to form a cation.
8 0
3 years ago
Question 22
ruslelena [56]

Answer:

O2, oxygen.

Explanation:

Hello.

In this case, for the undergoing chemical reaction, we need to compute the moles of CO2 yielded by 85 g of CH4 (molar mass = 16 g/mol) and by 320 g of O2 (molar mass 32 g/mol) via the following mole-mass relationships:

n_{CO_2}^{by\ CH_4}=85gCH_4*\frac{1molCH_4}{16gCH_4} *\frac{1molCO_2}{1molCH_4} =5.3molCO_2\\\\n_{CO_2}^{by\ O_2}=320gO_2*\frac{1molO_2}{32gO_2} *\frac{1molCO_2}{2molO_2} =5molCO_2

Considering the 1:2:1 among CH4, O2 and CO2. Therefore, since 320 g of O2 yield the smallest amount of CO2 we infer that the limiting reactant is O2.

Best regards.

5 0
3 years ago
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