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IrinaK [193]
3 years ago
8

The state of matter for an object that has both definite volume and definite shape is

Chemistry
1 answer:
Romashka-Z-Leto [24]3 years ago
3 0

The state of matter for an object that has both definite volume and definite shape is solid.

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Two molecules have the same molecular geometry but different electron domain geometries. Which combination of atoms and lone pai
m_a_m_a [10]
The correct answer is:
2 atoms and 2 lone pairs; 2 atoms and 1 lone pair.
Both AX₂E₂ and AX₂E have different electron domain geometry; AX₂E₂ is tetrahedral and AX₂E is trigonal planar but both of them has the same molecular geometry Bent

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3 years ago
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Which statement describes why sodium reacts more vigorously than magnesium to hydrochloric acid? Refer to the periodic table. Ci
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Sodium has a lower ionization energy than magnesium describes why sodium reacts vigorously than magnesium chloride.

<h3>Why is sodium more reactive than magnesium?</h3>
  • Sodium is more reactive than magnesium because it has the ability to easily lose electron, hence have lower ionization energy.
  • Sodium belong to group one on the periodic table and they are called akali metal while magnesium belong to group two on the periodic table and they are called alkali Earth metal.

  • Sodium and magnesium belong to the in the 3rd period. Iin the outermost energy level sodium has one electron but magnesium has 2 electrons. Therefore, there is more attraction abetween the nucleus and electrons in magnesium than that of sodium.

Therefore, sodium is more reactive than magnesium chloride because of lower ionization energy.

For more details on sodium reactivity, check the link below.

brainly.com/question/6837593

8 0
2 years ago
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How many molecules are there in 3 moles of aluminum chloride ?
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there are 4 atoms in aluminum chloride

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3 years ago
A car traveled 1500 km from Dallas to Shreveport in 4 hours. What is its average speed?
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\frac{1500 \: km}{4 \: hours}  = 375 \: km \: per \: hour.

5 0
2 years ago
What is the mass, in grams, of a sample of 6.98 × 1024 atoms of magnesium (Mg)?
monitta
N=6.98*10²⁴
Nₐ=6.022*10²³ mol⁻¹

n(Mg)=N/Nₐ

m(Mg)=n(Mg)M(Mg)=M(Mg)N/Nₐ

m(Mg)=24.3g/mol*6.98*10²⁴/(6.022*10²³mol⁻¹)=281.7 g
5 0
3 years ago
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