Elements are always combined in the same proportion as mass
Answer:
(A) Slipping and breaking
(B) Clean and dry
(C) Cracks
Explanation:
This describes the process of unpacking a glassware for use.
You should set out support like a cork ring or clamp (these are simple machines that'll hold the glassware in place) before removing the glassware from a glassware kit; to place the glassware in and to stop it from <u>slipping and breaking.</u>
Thoroughly check that the glassware is <u>clean and dry</u> and that it does not have any <u>cracks,</u> before using it.
Answer:
The answer to your question is: 1.21 A°
Explanation:
Ethene has 1 double bond between its carbons and a single bonds between Carbon and Hydrogens
Structure of ethene
H₂C = CH₂
The length of single bonds is 1.42 A°
The length of double bonds is 1.21 A°
The length of triple bonds is 1.10 A°