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Elis [28]
3 years ago
12

Give the reason why the empty crucible should be heated before starting the experiment

Chemistry
1 answer:
sdas [7]3 years ago
3 0
To make sure no cracks are in the crucible and also to remove any moisture present in the crucible by the process of heating.
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what is the coordination number of cobalt in [co(nh3)5cl](no3)2? what is the coordination number of cobalt in [co(nh3)5cl](no3)2
rewona [7]

The coordination number of cobalt in the complex is 6.

What is coordination compound?

The number of ligands attach to the central metal atom or ion in coordination sphere is coordination number.

In given complex 5 NH3 and 1 chlorine is attached in coordination sphere, so coordination number is 6.

To know more about the coordination number please follow the link:

https://brainly.in/question/1115267

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5 0
1 year ago
8. Describe an lonic Bond. (What types of atoms come together to form an ionic bond? What happens to the electrons in an ionic b
Shtirlitz [24]

Answer:

An ionic bond is that in which an electron is trasferred to another atom. Atoms  that are considered metals have a low electronegativity meaning they are less likely to gain any electrons. Atoms that are non-metals have a higher electronegativity and are more likey to gain electrons than lose electrons. When an electron is either lost or gained by another electron the atome becomes more stable. Atoms with a complete and balanced valence shell stay close together because of the Nucleus with its strong electromagnetic pull. The stronger the pull the more likely the atom will gain an electron. The weaker the pull the more likely it will lose an electron.

5 0
3 years ago
Can someone tell me how much does 2 drops of food coloring weight?
alex41 [277]
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6 0
3 years ago
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What is the normal pH range of a Base?
Karolina [17]

Answer:

7.35 - 7.45

Explanation:

The pH scale ranges from 0 (strongly acidic) to 14 (strongly basic or alkaline). A pH of 7.0, in the middle of this scale, is neutral. Blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45. Usually, the body maintains the pH of blood close to 7.40.

Hope this helps

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3 years ago
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How many valence electrons does B (boron) have?<br> A. 13<br> B. 5<br> C. 10<br> D. 3
pshichka [43]

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