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m_a_m_a [10]
3 years ago
13

What does Nb stand for on the periodic table? Pls help! Need aware soon

Chemistry
2 answers:
laila [671]3 years ago
7 0
It stands for niobium 
Marina86 [1]3 years ago
4 0
It stands for niobium which was discovered in 1801 by Charles Hatchett of Brittan. It is ussed in welding rods, air fraim systems, superconductive magnets. It gets its name from iobe, the daughter of King Tantalus of the Greek myth. Niobium was considered identical to Tantalum, named after Tantalus, until 1884. Resists corrosin due to an oxide film. It is used in aviation industry
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Which step will decrease the pressure of a gas inside a closed cubical container
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In order to <span>decrease the pressure of a gas inside a closed cubical container, you need to decrease the temperature of the container. The volume of the system is rigid so it means volume is constant. By the ideal gas law, temperature and pressure are directly related. Increasing the temperature, increases the pressure and the opposite to happens.</span>
6 0
3 years ago
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Calculate the density of a rectangular solid which has a mass of 25.71. it is 2 30cm long, 4.01 cm wide, 1.82 cm high
den301095 [7]
<span>Mass=25.7gm dimensions, l=2.3cm b=4.01cm h=1.82cm Thus,Density=Mass/Volume=m/lbh=25.7/2.3*4.01*1.82 g cm-3</span>
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3 years ago
When an atom loses an electron, we say that the atoms was ____________________.
arlik [135]

Answer:

However, if something happens to make an atom lose or gain an electron then the atom will no longer be neutral.

Explanation:

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8 0
3 years ago
Nitrogen ion (Nitride) is ... Cation/Anion/Neither? # of protons? # of electrons? Charge (1-, 2-, 3-, 1+, 2+, 3+, or 0) Number o
OLga [1]

Answer:

3- is the charge and 8 dots on its Lewis dot structure.

Explanation:

Hello there!

In this case, since nitrogen is an element with five valence electrons (electrons on its outer shell), we infer that it needs three bonds to complete the octet, for which its charge, when forming nitride ions is 3-, which means it has received three electrons. Thus, when drawing the Lewis dot structure, it is evident that is will have 5+3 = 8 dots due to the electron reception.

Regards!

8 0
2 years ago
What is the mass of a 300 ml sample of gaseous hydrogen chloride at 2.0 atm and 30c?
kap26 [50]
Use PV = nRT
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.6 = n(2519.142)

Divide by 2519.142

n = .00023818 mols of HCl * 36.46g of HCl/ 1 mol of HCl

Grams of HCl = 0.00868
3 0
3 years ago
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