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NNADVOKAT [17]
1 year ago
6

Considering the activity series given below for metals and nonmetals, which reaction will occur? al > mn > zn > cr >

fe > cd > co > ni > sn > pb > h > sb > bi > cu > ag > pd >hg > pt f > cl > br > i 2nabr i2 right arrow. 2nai br2 2fe al2o3 right arrow. 2al fe2o3 2agno3 ni right arrow. ni(no3)2 2ag pb zn(c2h3o2)2 right arrow. zn pb(c2h3o2)2
Mathematics
1 answer:
victus00 [196]1 year ago
8 0

The activity series is an arrangement of species in order of reactivity.

<h3>What is the activity series?</h3>

The activity series is an arrangement of species in order of reactivity. The position of a specie in the series determines the possibility of certain reactions.

The following are the fates of these reactions;

  • 2NaBr + I2--------->2NaI + Br2 - Not possible
  • 2Fe + Al2O3 ----------> 2Al + Fe2O3 - Not possible
  • 2AgNO3 + Ni ---------->  Ni(NO3)2 + 2Ag - possible
  • Pb + Zn(C2H3O2)2 ---------->  Zn + Pb(C2H3O2)2 - Not possible

Learn more about activity series:brainly.com/question/18080147

#SPJ1

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At 1 p.m., there were 257 visitors in the museum.

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Triangle ABC is an obtuse triangle with the obtuse angle at vertex B. Angle A must be
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Angle A must be acute.

Explanation:

Both angle A and C must be acute. The sum of the angles in a triangle is 180°.

An obtuse angle is more than 90°, so the sum of the remaining 2 angles has to be less than 90°.

Note that it is impossible to have:

<span>2 right angles in a triangle, because <span>90°+90°=180</span>° and the third angle still needs to be added.1 obtuse and 1 right angle in a triangle, their sum is more than 180°2 obtuse angles in a triangle, their sum is more than 180°</span>

It is possible to have an obtuse-angled isosceles triangle, but the vertex angle must be obtuse and the equal base angles will be acute.

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2 years ago
Could somebody check my work and tell me if it's right? If its wrong, please tell me where I went wrong.
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4 0
3 years ago
To cover a rectangular region of her yard, Penny needs at least 155 square feet of sod. The length of the
Tasya [4]

<u><em>To cover a rectangular region of her yard, Penny needs at least 170.5 square feet of sod. The length of the region is 15.5 feet. What are the possible widths of the region?</em></u>

<u><em></em></u>

<u><em>L=length=15.5 ft; W=width; A=area=>170.5 sq ft</em></u>

<u><em></em></u>

<u><em>L*W=>170.5 sq ft Divide each side by L</em></u>

<u><em></em></u>

<u><em></em></u>

<u><em>W=>170.5 sq ft/L</em></u>

<u><em></em></u>

<u><em>W=>170.5 sq ft/15.5 ft=>11 feet</em></u>

<u><em></em></u>

ANSWER: To cover at least 170.5 sq ft. the width must be at least 11 feet.

<h2><em><u>Brainly pls</u></em></h2>

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