All categories

3 years ago

Bicycles- How do different forms of transportation meet people’s transportation needs

1 answer:

3 0

Some forms of transportation are meant for small short trips while other forms of transportation are meant for big long trips

You might be interested in

I need help with number 5 part b please!

Afina-wow [57]

Answer is 3Mg + N2 —--> Mg3 N2

6 0

3 years ago

In Universe , recently discovered by an intrepid team of chemists who also happen to have studied interdimensional travel, quant

tiny-mole [99]

Answer:

Check the explanation

Explanation:

When talking about our universe there are 5 d orbitals. The element of first transition series moves away from the universal principles of Hund's rule and Aufbav's principle. So in order to attain stability these elements tend to form half or full filled orbitals.

In our universe the ground state electronic configuration of sixth transition metal, Iron (Fe) : [Ar] $3d^{6} 4s^{2}$

and the electronic configuration of seventh transition metal, Cobalt (Co) : [Ar] $3d^{7} 4s^{2}$

=================================

In universe L there are seven orbitals.

Ground state electronic configuration of sixth and seven transition element.

Sixth transition metal: [Ar] $3d^{7} 4s^1 or [X] 3d^{7} 4s^1$

Seventh transition metal: [Ar] $3d^{7} 4s^{2}or [X] 3d^{7} 4s^{2}$

7 0

3 years ago

Please help me out!!!

patriot [66]

Answer:

Use a scientific calculator

4 0

2 years ago

Which branch of the chemical industry usually requires advanced degrees? Marketing product development R & D corporate manag

fredd [130]

Answer: R & D is the correct option.

Explanation:

Research and development department of a chemical industry requires individuals holding advanced degrees because :

This will help the chemical industry to come up with new developments and advancements in preparation of the chemical products like :green methods to prepare certain chemicals which usually involves handling of toxic substances.
Formulation and development of the new chemical substitutes
Improvement of chemical product at microscopic level.

4 0

3 years ago

The double replacement reaction between calcium nitrate (Ca(NO3)2) and potassium oxide (K2O ) is shown below:

Llana [10]

Answer:

Mass = 2.355 g

Explanation:

Given data:

Mass of K₂O needed = ?

Mass of KNO₃ produced = 5.00 g

Solution:

Chemical equation:

K₂O + Ca(NO₃)₂ → CaO + 2KNO₃

Number of moles of KNO₃:

Number of moles = mass/molar mass

Number of moles = 5.00 g/ 101.1 g/mol

Number of moles = 0.05 mol

now we will compare the moles of KNO₃ and K₂O.

KNO₃ : K₂O

2 : 1

0.05 : 1/2×0.05 = 0.025 mol

Mass of potassium oxide needed in gram:

Mass = number of moles × molar mass

Mass = 0.025 mol × 94.2 g/mol

Mass = 2.355 g

8 0

2 years ago