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Molodets [167]
3 years ago
5

Jan drew a diagram to compare centipedes and millipedes.

Chemistry
2 answers:
devlian [24]3 years ago
7 0

Answer:

the answer is b

Explanation:

got it right on edge 2021

andre [41]3 years ago
4 0

Answer:

BBB millipedes have two sets of legs on each segment.

Explanation:

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Explain how a pure metal is held together.
Marta_Voda [28]

A piece of pure metal, like copper or iron, comprises metal atoms, which are surrounded by electrons of moving force which drift free from each other's metal. The attraction between free - floating valence electrons and positive metal ions results in metallic bonds.

4 0
4 years ago
1.42 mol sample of neon gas at a temperature of 13.0 °C is found to occupy a volume of 25.5 liters. The pressure of this gas sam
Dima020 [189]

Answer: 996 mmHg

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at NTP, weighs equal to the molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

According to the ideal gas equation:

PV=nRT

P = Pressure of the gas = ?

V= Volume of the gas = 25.5 L

T= Temperature of the gas = 13°C = (273+13) K  = 286K

R= Gas constant = 0.0821 atmL/K mol

n=  moles of gas= 1.42

P=\frac{nRT}{V}=\frac{1.42\times 0.0821\times 286}{25.5}=1.31atm=996mmHg      (760mmHg=1atm)

Thus pressure of this gas sample is 996 mm Hg.

3 0
3 years ago
Determine which material is most likely to be a good conductor.
Mkey [24]

Sodium is the answer!

7 0
3 years ago
How would you convert 2930 kcal to kJ?
andrezito [222]

It is quite easy:

1 cal = 4,1868 J

Solution is:

2930 kcal = 4,1868 * 2930 [kJ] = 12267,324 [kJ]

8 0
3 years ago
Can someone help me with this one :")
olga nikolaevna [1]

Answer:

i think is probably A

Explanation:

because at constant temperature, the product of the pressure and volume of a given mass of and ideal gass in a closed system is always constant

7 0
3 years ago
Read 2 more answers
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