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k0ka [10]
3 years ago
9

Help me please ........

Chemistry
1 answer:
kykrilka [37]3 years ago
5 0

Answer:

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dimaraw [331]

Answer:

i think 35 degrees Celsius

Explanation:

cause its the same temperature

3 0
3 years ago
Read 2 more answers
10. Which would not be a good solution to counter overpopulation?
Vikki [24]

Answer:

A. Encourage an increase in pollution in these countries

4 0
1 year ago
[Kr]5s^24d^105p^4
Margarita [4]
- Telleurium ( Te) is the chemical symbol
- electron is 52,
- there are 2 electron in 5s
7 0
3 years ago
Which atom or ion is the largest? A.K B. K+ C. Ca D. Ca2+ E. Li
lapo4ka [179]

Consequently, the ion with the greatest nuclear charge (Al 3 +) is the smallest, and the ion with the smallest nuclear charge (N 3−) is the largest. The neon atom in this isoelectronic series is not listed in Table 2.8.3, because neon forms no covalent or ionic compounds and hence its radius is difficult to measure.

4 0
3 years ago
A closed vessel having a volume of 1 liter holds 2.5 × 1022 molecules of carbon dioxide gas. Determine the mass of CO2 present,
11111nata11111 [884]

Answer:

mass = 1.8x10⁻³ kg; number of moles = 4.1x10⁻⁵ kmol; specific volume = 0.55 m³/kg; molar specific volume = 24.4 m³/kmol

Explanation:

By the Avogadro's number, 1 mol of the matter has 6.02x10²³ molecules, thus, the number of moles (n) is the number of molecules presented divided by Avogadro's number:

n = 2.5x10²²/6.02x10²³

n = 0.041 mol

n = 4.1x10⁻⁵ kmol

The molar mass of CO₂ is 44 g/mol (12 g/mol of C + 2*16g/mol of O), and the mass is the number of moles multiplied by the molar mass:

m = 0.041 mol * 44 g/mol

m = 1.804 g

m = 1.8x10⁻³ kg

The specific volume (v) is the volume (1L = 0.001 m³) divided by the mass, and it represents how much volume is presented in each part of the mass:

v = 0.001/1.8x10⁻³

v = 0.55 m³/kg

The molar specific volume (nv) is the volume divided by the number of moles, and it represents how much volume is presented in each part of the mol:

nv = 0.001/4.1x10⁻⁵

nv = 24.4 m³/kmol

5 0
3 years ago
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