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Alexandra [31]
3 years ago
14

In the absence of air a penny and a feather that are dropped from the same height at the same time will

Chemistry
1 answer:
erik [133]3 years ago
6 0
Have the same acceleration/reach the ground at the same time.

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The periodic table is an arrangment of the chemical elements, ordered by atomic number, into families, and by doing so illustrat
Vlada [557]

Answer:

Cesium and Neon

Explanation:

Remember, Neon is a noble gas, also called an inert gas. It does not react really to form compounds. Although chlorine is only one column to the left of neon, it is very reactive and ready forms a salt when combine with sodium. The other elements have similar reactivities to each other. Only Neon is a non-reactive choice.

8 0
4 years ago
Give the hybridization for the c in hcch. group of answer choices
Tamiku [17]

The hybridization for C in acetylene, HCCH, or C₂H₂ is 'sp'.

Discussion:

There are three different forms of hybridization -

  1. sp- The first occurs when two carbon atoms are triple linked.
  2. sp₂- When two carbon atoms are double-bonded to one another, this is known as sp₂.
  3. sp₃- When a single bond joins two carbon atoms, this is known as sp₃.

In the case of acetylene(HCCH or C₂H₂):

  • The carbon atom requires additional electrons to establish four bonds with hydrogen and other carbon atoms in the synthesis of C₂H₂. One 2s₂ pair is consequently transferred to the vacant 2pz orbital. Each carbon has two sp hybrid orbitals after the 2s orbital in each atom combines with one of the 2p orbitals.
  • As a result of the atoms' symmetrical alignment in a single plane, C₂H₂ possesses a linear molecular structure. Due to their lower electronegative nature than Hydrogen atoms, all Carbon atoms are situated near the center of the Lewis structure of C₂H₂.

                                              H-C≡C-H

Therefore, it is concluded from the above discussion that the hybridization type of acetylene is 'sp'.

Learn more about hybridization here:

brainly.com/question/14140731

#SPJ4

5 0
2 years ago
Which of the substances in the chart has the least density?
3241004551 [841]
Answer:
            Option-D (Piece of Wood) is the correct answer.

Explanation:
                   Density is related to mass and volume as,

                             Density  =  Mass / Volume
For Wood,
                             Density  =  42.5 / 50

                             Density  =  0.85

You can calculate remaining densities by yourself. Among all the density of Piece of Wood is the least.
3 0
3 years ago
Where do you think the atoms for plant growth come from?
Levart [38]

Answer:

the mass of a tree is primary carbon

Explanation:

<u>the</u><u> the carbon comes from carbon dioxide during photosynthesis</u>

3 0
3 years ago
Read 2 more answers
Burning plants contributes to global warming because:
Drupady [299]

Answer:carbon dioxide is released during combustion

5 0
3 years ago
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