1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sertanlavr [38]
3 years ago
14

Though a needle is several times as dense as water, a small needle can be made to float on the surface of water if placed carefu

lly.
a) What could be the reason?
b) Why does a water drop assume spherical shape?
Plastics played an important role in forest conservation. Substantiate the statement.
Chemistry
2 answers:
Alinara [238K]3 years ago
5 0
I believe your answer is B
viva [34]3 years ago
3 0
The water is more dense than the needle so it can withstand the weight. It is the contraction of the water falling faster than the others forming a drop pattern or the water getting smaller so the top looked smaller.
You might be interested in
Can a non-polar molecule contain polar bonds? Explain your answer with an example.
Rom4ik [11]

Answer:

Yes

Explanation:

It is possible that a non polar molecule contain polar bonds.

Consider the example of CO₂:

In carbon dioxide the atoms are arranged in angle of 180 degree and molecule is linear. So in this way the net dipole movement becomes zero and molecule is non polar.

But when we see the electronegativity of both bonded atoms the oxygen is more electronegative than carbon. The oxygen atom have partial negative charge and carbon have partial positive charge because shared pair of electron is more attracted towards the oxygen. Thus bond become polar because one end is partial positive and other is partial negative. Thus a non polar carbon dioxide molecule have polar bond.

8 0
3 years ago
A detrital rock is named according to ____.
netineya [11]
I believe the answer is D.
5 0
3 years ago
ATP is a molecule composed of adenosine and three phenol groups. (True or false )
Naya [18.7K]
False it's composed of 3 phosphate groups not phenol
6 0
3 years ago
Which describes the state at which products form at the same rate as reactants?
swat32

Chemical equilibrium<span> is the state in which both reactants and products are present in concentrations which have no further tendency to change with time.
</span><span>Or, we can say that in chemical equilibrium the  ratio between the concentration of the reactants and the products is constant.</span><span>
Chemical equilibrium is a result state when </span><span>the forward reaction proceeds at the same rate as the reverse reaction.
</span><span>Different reactions have different equilibrium.</span>

8 0
3 years ago
Read 2 more answers
The inner planets—Mercury, Venus, Earth, and Mars—are believed to have been formed by _____.
larisa86 [58]

i believe the answer is B :/

4 0
3 years ago
Other questions:
  • 1. Sodium and water react according to the following equation. If 31.5g of sodium are added to excess water, how many liters of
    10·1 answer
  • Water has a density of 1.0 g/mL. Which of these objects will float in water
    6·1 answer
  • Calculate the heat change associated
    11·1 answer
  • What is the Ionic Equation and Net Ionic Equation for BaCl2 + Al2(SO4)=&gt; 3Ba(SO4) + 2AlCl3?
    13·1 answer
  • Help please Chemistry
    6·1 answer
  • Methylamine, CH3NH2, is a weak base. Write a chemical equation showing its reaction with water. Include physical states in your
    12·1 answer
  • Describe all the changes a sample of solid water would undergo when heated from -10degrees c to its critical temperature at a pr
    10·1 answer
  • The Tissues of vascular Plants are organized into more complex structures that carry out a Variety of functions in the plant wha
    14·1 answer
  • Why isn’t the Alfa Carbon in Glycine considered chiral ?
    12·1 answer
  • You stay out in the sun too long and get sunburned. What type of energy transfer causes your sunburn?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!