Answer: Compounds having the same empirical formula are:
Explanation:
Empirical formula tells us about the proportion of the elements present in the compound but it do not tells us about the actual numbers of atoms of the elements present in the compound.
In given empirical formula that is proportion of C:H:O = 1:2:1
In the proportion of C:H:O =2:4:2= 1:2:1
In the proportion of C:H:O =3:6:3= 1:2:1
In the proportion of C:H:O =1:2:2= 1:2:2
In the proportion of C:H:O =5:10:5= 1:2:1
In the proportion of C:H:O =6:12:6= 1:2:1
Compounds having the given empirical formula are:
The chemical compounds that have the empirical formula are:
A.C2H4O2
B.C3H6O3
D.C5H10O5
E.C6H12O6
An empirical formula can be defined as a formula that gives the smallest and simplest whole number ratio of the atoms of a chemical element found in a chemical compound.
The simplest whole number ratio of the atoms of is:
= 1:2:1
For :
= 2:4:2 = 1:2:1
For :
= 3:6:3 = 1:2:1.
For :
= 1:2:2 = 1:1:1 (Incorrect)
For :
= 5:10:5 = 1:2:1
For :
= 6:12:6 = 1:2:1
Note:
Read more: brainly.com/question/21280037
The bouncing back of light waves observed when light waves hit ice and most of them bounce off and radiate back into space is called reflection.
Light waves are a form of waves which produces visible sensitization of the eyes
Light waves have properties of waves such as:
When light waves hit ice, most of them bounce off and radiate back into space.
This property of light waves is known as reflection.
Learn more about reflection of light waves at: brainly.com/question/1191238
When light waves hit ice, most of them bounce off and radiate back into space, hence, ice is best described as a reflective surface.
A reflective surface is one which can cause incident light to bounce back (reflection).
According to this question, when light waves hit ice, most of them bounce off and radiate back into space. This means that most of the incident lightreflects off the ice surface.
Therefore, the ice surface is best described as a reflective surface.
Learn more about reflection at: brainly.com/question/8553652
b. changes to pressure
c. changes to precipitation
d. all of the above
Which of the following is not released by trees into the atmosphere?
a. oxygen
b. water vapor
c. ozone
d. none of the above
1. Answer is d. all of the above.
Climate can be defined as the data collection of weather conditions of a long period of time in a certain area. The weather conditions that affect to the climate are temperature, precipitation, atmospheric pressure, wind and so on. Any changes in weather can change the global climate.
2. Answer is c. ozone.
Trees release oxygen and water vapor into the atmosphere but not ozone. The oxygen gas is released by trees as the by-product of photosynthesis. This is the natural way of production of oxygen gas. Water vapor can be released due to the transpiration of trees.
1. The correct answer is option D. all of the above.
Global climate change will bring changes in temperature such as heat waves, droughts, volcanic eruption, deforestation, extinction of species due to large shift in temperatures, changes in precipitation such as heavy snowfall, ocean acidification, and ozone depletion.
2. The correct answer is option C, ozone.
Ozone is not released by trees into the atmosphere. Plants have chlorophyll and in the presence of sunlight plants uses sunlight and carbon dioxide to form glucose and oxygen.
6CO₂ + 6H₂O -> C₆H₁₂O₆ + 6O₂
During transpiration plants exhale water vapor through the stomata, tiny pores that are found on the surface of the leaves.
Thus trees never release ozone into the atmosphere.
Gold atoms are similar to alpha particles.
Alpha particles and gold nuclei have opposite charges.
Alpha particles are less dense than gold atoms.
According to ErnestRutherford's gold foil tests, the true statement is that space makes up the majority of gold atoms. The correct option is A.
According to Rutherford's studies, the majority of the alphaparticles encountered free space inside the atom since they mostly went through the gold foil with little to no deflection.
This finding helped scientists comprehend that atoms have a small, compact nucleus at their center and are primarily made up of empty space elsewhere in the atom.
The nuclearmodel of the atom was created as a result of the deflection of several alpha particles, which showed that they came into contact with the positively charged atom's nucleus.
Thus, the correct option is A.
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Your question seems incomplete, the probable complete question is:
In Ernest Rutherford's gold foil experiments, some alpha particles were deflected from their original paths, but most passed through the foil with no deflection. Which statement about gold atoms is supported by these experimental observations?
A. Gold atoms consist mostly of empty space.
B. Gold atoms are similar to alpha particles.
C. Alpha particles and gold nuclei have opposite charges.
D. Alpha particles are less dense than gold atoms
Answer:
A
Explanation:
Answer:
To hit someone on the head
Explanation:
self protection
earth?
A
It's oxygen
B
its hydrogen gas
C
It's carbon dioxide
D
It's water
Answer:
a
Explanation:
it's the most common thought of element when you need a compound from earth