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Art [367]
2 years ago
12

Practice

Chemistry
1 answer:
krek1111 [17]2 years ago
4 0

The number of significant figures in each of the following numbers are as follows:

  • 640 cm³ - number of significant figures: 2
  • 200.0 mL - number of significant figures: 4
  • 0.5200 g - number of significant figures: 4
  • 1.005 kg - number of significant Figures: 4
  • 10,000 L - number of significant figures: 1
  • 20.900 cm - number of significant figures: 5

<h3>What is significant figures?</h3>

Significant figures are those figures that are meaningful with respect to the precision of a measurement.

In other words, a digit that is nonzero, followed by a nonzero digit,or (for trailing zeroes) justified by the precision of the derivation or measurement is a significant figure.

Based on the question, the number of significant figures in each of the following numbers are as follows:

  • 640 cm³ - number of significant figures: 2
  • 200.0 mL - number of significant figures: 4
  • 0.5200 g - number of significant figures: 4
  • 1.005 kg - number of significant figures: 4
  • 10,000 L - number of significant figures: 1
  • 20.900 cm - number of significant figures: 5

Learn more about significant figures at: brainly.com/question/14359464

#SPJ1

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The higher the pH, the less acidic the solution
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The anther of flower contains​
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4 years ago
Can someone fill this out pleaseee for me
Ganezh [65]

Filling out the table below following the outlined order:

  • Calcium - symbol = Ca; Group =2; Period = 4; Ar = 134; Am =40.078u; Ph = solid; Density = 1.55; Bp = 1757K; Mp = 1115K.
  • Vanadium - symbol = V; Group =5; Period = 4; Ar = 197; Am =50.9415u; Ph = solid; Density = 6.11; Bp = 3680K; Mp = 2183K.
  • Manganese - symbol = Mn; Group =7; Period = 4; Ar = 127; Am = 54.938044u; Ph = solid; Density = 7.21; Bp = 2334K; Mp = 1519K.
  • Cobalt: - symbol = Co; Group =9; Period = 4; Ar = 125; Am =58.933195 u; Ph = solid; Density = 8.90; Bp = 3200K; Mp = 1768K.
  • Zinc: - symbol = Zn; Group = 12; Period = 4; Ar = 134; Am =65.38 u; Ph = solid; Density = 7.14; Bp = 1180K; Mp = 692.68K.
  • Arsenic: - symbol = As; Group = 15; Period = 4; Ar = 197; Am = 74.9216 u; Ph = solid; Density = 5.75; Bp = 889K; Mp = 889K.
  • Bromine: - symbol = Br; Group =17; Period = 4; Ar = 120; Am = 79.904 u; Ph = Liquid; Density = 3.1028; Bp = 332K; Mp = 265K.

<h3>Meaning of Element</h3>

An element can be defined as a substance that can not be broken down into simpler substances.

An element serves as a building blocks for compounds and mixtures.

In conclusion, each element and its property as requested in the table are given above.

Learn more about element : brainly.com/question/18096867

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5 0
2 years ago
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