Answers
Answer:
CH³–C=CH——CH³–CH=CH²
Explanation:
THIS IS PROPYNE TO PROPENE
Related Questions
Which reaction occurs at the cathode in an electrochemical cell?
A. Cu(s) → Cu2+(aq) + 2e
B. Cu2+(aq) + H2(g) → Cu(s) + 2H+(aq)
C. Cu(s) + 2H+(aq) → Cu2+(aq) + H2(g)
D. Cu2+(aq) + 2e → Cu(s)
Answers
Answer:
I could be wrong but I say it's letter b
Explanation:
I hope you have an great night
How are energy and mass connected during the formation of an
atom?
Answers
Answer:
Energy is absorbed, so the mass is increased. Energy is released, so the mass is increased
If Bromine has a charge of 1-, how many electrons does it have?
Answers
Answer:
36 electrons
Explanation:
But Bromine anion with a charge of -1 has one extra electron so 35 +1 = 36 electrons.
Identify the correct mole ratio for each substance.
Sodium chloride (NaCl)
Na:Cl = 1: _
Ammonium nitrate(NH.NO3)
H:0 = 4: _
Answers
Answer:
The mole ratio of H : O in ammonium nitrate is 4 : 3.
Explanation:
We are given a compound named ammonium nitrate having formula
There are 3 elements in this compound which are nitrogen, hydrogen and oxygen.
To calculate the mole ratio, we write the ratio of their subscripts. For this compound,
9.
Look at the following equation. What is the oxidizing agent? 3Mg + N2 ->Mg3N2
Answers
Answer:
In this reaction, nitrogen acts as the oxidizing agent. Mg is a reducing agent.
plz help me with this one question
I will give u like,rate you 5 star and also follow u back.ppz help me
Answers
Answer:
Cl2(g) + H2O <–> HOCl + H+ + Cl-
Chlorine is the most popular way for the sterilization of water.
Cl2 + H2O → HOCl + HCl
The number of joules required to heat one gram of a substance one degree Celsius is _____.
endothermic
temperature
exothermic
specific heat capacity
Answers
Tips for high school
Answers
Answer:
stoichiometry is hard but the rest is kinda easy if u pay attention
Explanation:
Answer:
study your tail off, chemistry requires it. I failed because I did not study.
Explanation:
what is the percentage composition of water in crystallization of oxalic acid
Answers
Answer:
5.17 percentage is water
Explanation:
answer from gauth math
The elements in groups 1A, 6A, and 7A are called, __________, respectively. Group of answer choices alkaline earth metals, halogens, and chalcogens alkali metals, chalcogens, and halogens alkali metals, halogens, and noble gases alkaline earth metals, transition metals, and halogens halogens, transition metals, and alkali metals
Answers
Answer:
1A Alkali Metals
6A Chalcogens
7A Halogens
Answer:
alkali metals, chalcogens, halogens
Explanation:
Group 1A is alkali metals
Group 6A is chalcogens
Group 7A is halogens
what volume of 2.0 m hcl contains 0.50 mol hcl?
Answers
Answer:
the volume of the acid is 250 mL.
Explanation:
Given;
number of moles of the Hcl acid, n = 0.5 mol
concentration of the acid, C = 2.0 M = 2 mol/L
let the volume of the acid = V
The volume of the acid is calculated by applying the following equation;
n = CV
V = n/C
[tex]V= \frac{0.5 \ mol}{2 \ mol/L}[/tex]
V = 0.25 L
V = 250 mL
Therefore, the volume of the acid is 250 mL.
define measurment and its importance
Answers
Answer:
Explanation:
A measurement is the action of measuring something, or some amount of stuff. So it is important to measure certain things right, distance, time, and accuracy are all great things to measure. By measuring these things or in other words, by taking these measurements we can better understand the world around us.
Answer:
Measurement is the process of comparison of an unknown physical quantity with a known physical quantity.
It is important because measurement is needed in every day life we need measurement in simply cooking food to designing a house and many more other works.
Explanation:
hope this helps you.
Which statement best describes what happens as thermal energy from the
sun warms the pavement?
A. The thermal energy absorbed by the pavement is destroyed.
B. The thermal energy that is not absorbed by the pavement is
destroyed.
C. Some thermal energy is absorbed by the pavement, and some is
destroyed.
D. The thermal energy of the sun is transferred to the pavement.
Answers
Answer:
D
Explanation:
The correct answer would be that the thermal energy of the sun is transferred to the pavement.
Thermal energy refers to the internal energy possessed by a system by virtue of the movement of molecules within such a system. In other words, it is the heat energy possessed by a system.
When the thermal energy from the sun warms the pavement, it means that the thermal energy from the sun has been successfully transferred to the pavement. Thermal energy can be transferred by conduction, convection, or by radiation depending on whether the system is a solid, liquid, gas respectively.
The correct option is, therefore, D.
The number of grams of helium in a balloon at a pressure of 99.8 kPa, a temperature of 301 K, and a volume of 0.785 L would be
Options:
814 g
0.125 g
0.278 g
337 g
Answers
pV=nRT
in formula n=m/M
you have to find m
P=99.8/101.325
v=0.785
R=0.0821
T=301
The number of grams of helium in a balloon at a pressure of 99.8 kPa, a temperature of 301 K, and a volume of 0.785 L would be 0.125g.
How to calculate mass?The mass of a substance can be calculated by multiplying the number of moles by its molar mass.
However, the number of moles of helium must be calculated as follows:
PV = nRT
Where;
P = pressureV = volumen = no of molesR = gas law constantT = temperature0.985 × 0.785 = n × 0.0821 × 301
0.773 = 24.7n
n = 0.773 ÷ 24.7 = 0.031moles
mass of He = 0.031 × 4 = 0.125g
Therefore, the number of grams of helium in a balloon at a pressure of 99.8 kPa, a temperature of 301 K, and a volume of 0.785 L would be 0.125g.
Learn more about mass at: https://brainly.com/question/19694949
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Which statement best describes how forces are important to chemistry?
A. Forces are transferred when atoms form ions.
B. Forces are released during chemical reactions.
C. Forces determine the extent of a reaction.
D. Forces hold atoms and molecules together.
Answers
Answer:
D
Explanation:
(Q008) Two physical properties of minerals both result in smooth, flat surfaces with specific angles between them. The first property is externally visible and is the result of how the mineral forms; the second is inherently internal and is the result of breaking a sample of the mineral. These properties are called
Answers
Answer: Crystal habit and cleavage.
Explanation:
When two physical properties of minerals both bring about smooth, flat surfaces that has specific angles between them.such that the first property is externally visible and is the result of how the mineral forms while the second property is internal and is the result of breaking a sample of the mineral, it should be noted that the properties are refered to as the crystal habit and cleavage.
It should be noted that the cleavage refers to the tendency of crystalline materials to be able to split along the structural planes.
The atomic number of silicon (Si) is 14. What's the electron configuration for silicon? Question 1 options:
A) [Ar] 3p5
B) [He] 1s2 2p6
C) [Ne] 3s2 3p2
D) [He] 2s2 3p2
Answers
Answer:
D.[Ne] 3S2 3P2
Explanation:
The electron configuration for silicon is [Ne] 3s² 3p². Hence Option (C) is correct.
What is elctronic configuration ?Electronic configuration, also called electronic structure or electron configuration, the arrangement of electrons in orbitals around an atomic nucleus.
The electron configuration of an element describes how electrons are distributed in its atomic orbitals.
Electron configurations of atoms follow a standard notation in which all electron-containing atomic subshells (with the number of electrons they hold written in superscript) are placed in a sequence.
Silicon belongs to group 14th and 3rd period.Therefore, The electron configuration for silicon is [Ne] 3s² 3p². Hence Option (C) is correct.
Learn more about Electronic configuration here ;
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Cho các dung dịch: Glucozơ, glixerol, fomanđehit, etanol. Có thể dùng thuốc thử nào sau đây để phân biệt được cả 4 dung dịch trên?
A. Cu(OH)2; B. Dung dịch AgNO3 trong NH3;
C. Na kim loại; D. Nước brom.
Xem thêm tại: https://loigiaihay.com/bai-2-trang-25-sgk-hoa-hoc-12-c55a8069.html#ixzz71KH6guhm
Answers
Answer:
chắc là câu B í
Explanation:
WHICH STATEMENT BEST REPRESENTS A HYPOTHESIS
Answers
Answer:
D
Explanation:
Hypotheses are educated guesses, and the best answer is the one with an if, as it indicates that it's a guess.
Answer:
letter b should be the answer
is magnetism, reactivity, and fluorescence used to identify minerals
Answers
A substance is a solid at room temperature, melts easily, conducts electricity weakly, and dissolves well in water and alcohol. What type of bonds does it have?
Answers
Answer:
Iconic bond
Explanation:
A form of chemical bond that included electrostatic attraction in the oppositely charged ions. It is one of the main types of bonding along with the covalent and metallic bonding. The substance is crystalline in nature since it melts easily and is solid at room temperature.hii pls help me to balance the equation and state the symbols thanksss
Answers
Answer:
I hope that the link above will be helpful
▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
[tex]\boxed{\pmb{\green{\sf{2Mg +H_{2}SO_{4}\dashrightarrow H _{2}+Mg_{2}SO_{4}}}}}[/tex]
▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
What is consciousness? ...
Answers
Answer:
Consciousness refers to your individual awareness of your unique thoughts, memories, feelings, sensations, and environments. Essentially, your consciousness is your awareness of yourself and the world around you. This awareness is subjective and unique to you.
Explanation:
How many Sodium (NA) Atoms are in Methylene?
Answers
Answer:
No Sodium(Na) in methylene
Explanation:
Methylene is an organic compound
In the compound Ni2O3, nickel's oxidation number is_____
oxidation number is -2.
and oxygen's
Answers
Answer:
+3
Explanation:
The name of this compound would be nickel (III) oxide. Oxygen typically has a charge of -2. Given there are 3 oxygen atoms, that would equal a charge of -6. The nickel is the cation and must equal the charge of the anion, so must have a charge of +6. Since there are 2 nickel atoms, the charge on each must be +3.
Where does reduction occur in an electrochemical cell?
Answers
Answer:
The cathode is the electrode where reduction takes place.
so
reduction occur in Cathode in an electrochemical cell.
Answer: Cathode
Explanation:
.
What produces the large amount of energy released by a nuclear reaction?
A. the "disappearance" of a small number of electrons.
B. the "creation" of a small amount of mass.
c. the "disappearance" of a small amount of mass.
D. the "creation" of a small number of electrons.
Answers
Answer: C the “disappearance” of a small amount of mass.
Explanation:
which is the following is a vector quality?
ans:
1)mass
2)speed
3)time
4)plane area
Answers
Answer:
speed
Explanation:
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Molar mass of C^6H^12O^6
Answers
Answer:
The molar mass of C6 H12 O6 is 180.15588 g/mol.
Explanation:
what is the material used to make plaster of paris?
Answers
Answer:
gypsum
Explanation:
gypsum is used to make plaster of Paris
Answer:
Simple squamous epithelium
This type of epithelia lines the inner surface of all blood vessels (endothelium), forms the wall of alveolar sacs in the lung and lines the body cavities (mesothelium). The primary function of simple squamous epithelia is to facilitate diffusion of gases and small molecules.
Explanation:
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