are CH4 and CH3OH soluble in water?
CH4 is not soluble in water
whereas CH3OH is soluble in water.
Answer:
CH4 is non polar covalent compound and non polar covalent compounds are insoluble in polar covalent compounds like water.
And CH3OH is soluble in water because it polar and also due to hydrogen bonding.
What is significant about the temperature absolute zero?
Explanation:
The absolute temperature is the lowest possible temperature in the universe. At this temperature, all atoms become motionless and cease to move.
The value of the absolute zero is pegged at -273.16°C.
It is the lowest limit of the coldness of a body. Nothing can be colder than a body at absolute temperature. Many researches are underway to take advantage of this temperature value for scientific purpose. Thermodynamically, all process stops at this temperature. When a body is brought close a body at absolute zero, it can suffer cryogenic burn due to heat transfer.Which is an oceanic plate?
Somali
Arabian
Nazca
South American
Answer:
EZ
in my knowledge
Option C Nazca
I really need help guys in order to pass this. its kinda urgent!
What type of reaction is CH4 = c+2h2
Answer:
An exothermic reaction
an ice cube is placed in the sun. later there’s a puddle of water. then later on the puddle is gone. is this a physical or chemical change?
Answer:
chemical
Explanation:
because the water puddle disappeared, it is no longer H2O, which is a chemical change
Answer:
chemical
Explanation:
Anything that has mass and takes up space
Answer:
true
Explanation:
Answer:
is matter
Explanation:
A balloon at 25°C has 30 L. What will the balloon's volume at 35°C?
Answer using that method
The balloon's volume at 35°C : V₂=31.01 L
Further explanationGiven
T₁ = 25°C+273 = 298 K
V₁ = 30 L
T₂ = 35 °C + 273 = 308 K
Required
The new volume (V₂)
Solution
Charles's Law
When the gas pressure is kept constant, the gas volume is proportional to the temperature
[tex]\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]
Input the value :
V₂=(V₁.T₂)/T₁
V₂=(30 x 308)/298
V₂=31.01 L
Help please and if you say for points I will report you :)
Answer:
radiation
Explanation:
Answer:
radiation
Explanation:
what do you use to mesure wind
Answer:
Either a windmill or an anemometer
Explanation:
A windmill is usually used as a harvester for wind energy. Anemometers measure wind speed and determine wind direction. Using these sets of data, meteorologists can calculate wind pressure.
WILL MARK BRAINLIEST!!!! please help quickly. 1. Combine iron and copper (II) sulfate solution. (Hint: Iron will form the iron (III) ion)
Fe + CuSO4 →
2. Combine lead (II) nitrate and potassium iodide solutions.
Pb(NO3)2+ Kl →
3. Combine magnesium metal and hydrochloric acid solution.
Mg + HCl →
4. Electrolysis (splitting) of water.
H2O →
5. Burning magnesium.
Mg + O2 →
Answer:
Fe + CuSO4 → Cu + Fe2(SO4)
2. Combine lead (II) nitrate and potassium iodide solutions.
Pb(NO3)2+ Kl → KNO3 + PbI2
3. Combine magnesium metal and hydrochloric acid solution.
Mg + HCl → MgCl 2(aq) + H 2(g)
4. Electrolysis (splitting) of water.
H2O → Im not sure sorry
5. Burning magnesium.
Mg + O2 → MgO
Explanation:
Choose the topic that will not be studied in a physical science course.
chemical reactions
electricity
states of matter
natural selection
Answer:
The answer is Natural selection
Which statement describes the way in which energy moves between a
system of reacting substances and the surroundings?
A. Molecular collisions create energy that is then released into the
surroundings.
B. The potential energy of the system and its surroundings
increases.
C. Molecular collisions transfer thermal energy between the system
and its surroundings.
D. The thermal energy of the system and its surroundings increases.
Answer:
it c
Explanation:
just took the quiz
The statement, that describes the energy moves between a system of reacting substances and the surroundings is "molecular collisions transfer thermal energy between the system and its surroundings"
What is energy?Energy is the ability to perform tasks. Energy is a quantitative property that is transferred to a body or a physical system and is visible in the performance of work as well as in the appearance of heat and light. It can take the shape of a potential, kinetic, thermal, electrical, chemical, radioactive, or other substance. Collisions between molecules transmit energy when two bodies come into contact. Molecules transfer thermal energy to one another by collision.
The warmer body transfers more energy to the cooler body until they achieve the same temperature. This is known as thermal equilibrium. This is known as 'energy transferred as heat.'
Hence the correct answer is molecular collisions transfer thermal energy between the system and its surroundings.
Learn more about energy here
https://brainly.com/question/1698090
#SPJ2
Please Help! :)
Calcium carbonate decomposes to form carbon dioxide and calcium oxide:
CaCO3(s) -------> CO2(g) + CaO(s)
How many grams of calcium carbonate will be needed to form 3.45 liters of carbon dioxide at 740 mm Hg and 121 °C?
Answer:62684
Explanation:
Given that you started with 28.5 g of K3PO4, how many grams of KNO3 can be
produced?
Mass of KNO₃ : = 40.643 g
Further explanationGiven
28.5 g of K₃PO₄
Required
Mass of KNO₃
Solution
Reaction(Balanced equation) :
2K₃PO₄ + 3 Ca(NO₃)₂ = Ca₃(PO₄)₂ + 6 KNO₃
mol K₃PO₄(MW=212,27 g/mol) :
= mass : MW
= 28.5 : 212,27 g/mol
= 0.134
Mol ratio of K₃PO₄ : KNO₃ = 2 : 6, so mol KNO₃ :
= 6/2 x mol K₃PO₄
= 6/2 x 0.134
= 0.402
Mass of KNO₃ :
= mol x MW KNO₃
= 0.402 x 101,1032 g/mol
= 40.643 g
The diameter of the sun is 1.392 x 106 km. Write this number in standard notation.
Answer:
1.392 X 106 in satndard form is 147.552. In scientific Notation, it is 1.47552 X 10²
Explanation:
To put it in standard form you multiply 1.392 by 106.
To put it in scientific notation you move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
Which statement correctly describes the conductivity of the specified material?(1 point)
Most wires are made to have a low conductivity.
Gold has a high conductivity.
Copper has a low conductivity.
Most plastics have a high conductivity.
i think the second one " Gold Has a High Conductivity " but i'm sure its not the last one or the first one. Golds conductivity is higher than copper but that doesn't mean coppers is very low.
The statement that correctly describes the conductivity of the specified material is: Gold has a high conductivity. Therefore, option B is correct.
What is the conductivity of the specified material?The conductivity of any material refers to the ability of the material to conduct electricity. Gold is an excellent conductor of electricity, with a high electrical conductivity value of approximately 44.2 million siemens per meter (MS/m) at room temperature. This high electrical conductivity makes gold useful in many electronic applications, such as wiring, connectors, and circuit boards.
Copper is another metal that has high electrical conductivity and is commonly used in electrical wiring due to its excellent conductivity. Most wires are made to have high conductivity.
On the other hand, most plastics have low electrical conductivity and are often used as insulators to prevent electricity from flowing through them. Hence, option B is correct.
Learn more about conductivity, here:
https://brainly.com/question/21496559
#SPJ3
PLS HELP, WILL REWARD BRAINLIEST :)
Answer:
mineral
vitamins
carbohydrates
protien
fat
What are some example of chemistry outside ?
Plz help..........................
Answer:
this is because aluminium is a non renewable source of material. the process to mine it is expensive. the process releases greenhouse gases which are harmful to the environment. it takes a long time to extract the aluminium. it is a way to help reduce waste products.
( this answer will only get you about 5 marks you need one more point in your answer. I just couldn't be bothered to think about another one.)
Why does the Moon have a greater effect on the tides than the Sun?
A. The Moon is larger than the Sun.
B. The Moon is closer than the Sun to Earth.
C. The Moon is solid while the Sun is gaseous.
D. The Moon rotates more quickly than the Sun.
PLEASE HELP ITS DUE TODAY :/
Answer:
The correct answer is B.
Explanation:
I hope this helps. :)
Can the Ed-You-Swivel chairs capture enough energy to power the school's small electronics
Answer: The Ed- you swirl chair could not produce energy to power the school electronics.
Explanation:
The data obtained from the electric company demonstrates that the school uses the 15 million joules of energy per hour. The energy produced by the chair will not provide the enough labor that the school uses. This was proved by the engineers product testing lab, Inc.. They proved that the chair could harness 4,000 joules of energy in a day for use. It takes 20 days to the chair to charge one tablet which is time consuming and labor done by the chair will get compromised. This shows that the chair will be cover even of fraction of energy required for school use to charge the small electronics.
1. ___ SnO2+ __ H2 → ___ Sn + ___ H2O
2 SnO2 + 2 H2 → 2 Sn + H2O
SnO2 + 2 H2-Sn + 2 H2O
SnO2 + Hz-Sn + 2 H2O
2 SnO2 + H22Sn + H2O
2SnO2 + 2H2---->2Sn + H2o
please help me, please i really need it :)
GGCCATAGGTCCCTTTAGCG
I believe this is correct (I used the complementary base)
our hydrogen gas is not used in balloons give reason
Answer:
because in bellon when we pump he throw carbon dioxide not hydrogen
Answer:
Because helium is lighter than air, a helium balloon rises. Hydrogen is another gas lighter than air; it is even lighter than helium.
Explanation:
Hydrogen is not used in balloons and this demonstration shows why. ... This is because hydrogen burns very easily.
Increasing the amplitude means you are increasing the ____ of a wave.
Answer:
Sound (I think)
Explanation:
Amplitude is the maximum displacement of the sound particle from its original place. An increase in amplitude increases the energy of the wave.
What is amplitude?Amplitude is the distance from the rest of the wave to the crest of the wave. It is the maximum distance covered by the vibrating body.
The amplitude length increases with an increase in the vibration of the sound particles. This leads to an increase in the intensity and the energy of the particle of the sound particles. The increased energy increases the loudness of the sound.
Therefore, the increased amplitude results in increased energy.
Learn more about amplitude here:
https://brainly.com/question/15191027
Will combining water and baking soda make a chemical reaction?
Answer:
The baking powder reacts with water to produce bubbles, while baking soda does not react with water.
Explanation:
Answer:
yes
Explanation:
no
10 points for this problem that i need help with
Answer:
house fly = cellular rabbit = cellular crab = cellular
Explanation:
Help me with this plz
Answer:
3.6 moles
Explanation: i got that quistion right .
CH4 + 202 → CO2 + 2H2O
How many moles O2 needed to produce 4 moles of H2O?
4 mol O₂
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightChemistry
Atomic Structure
Reading a Periodic TableStoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
[RxN - Balanced] CH₄ + 2O₂ → CO₂ + 2H₂O
[Given] 4 mol H₂O
[Solve] x mol O₂
Step 2: Identify Conversions
[RxN] 2 mol H₂O → 2 mol O₂
Step 3: Stoichiometry
Set up conversion: [tex]\displaystyle 4 \ mol \ H_2O(\frac{2 \ mol \ O_2}{2 \ mol \ H_2O})[/tex]Multiply/Divide: [tex]\displaystyle 4 \ mol \ O_2[/tex]Moles of O₂= 4
Further explanationGiven
Reaction
CH₄ + 20₂ → CO₂ + 2H₂O
4 moles of H₂O
Required
Moles of O₂
Solution
In a chemical equation, the reaction coefficient shows the mole ratio of the compounds involved in the reaction, reactants or products
From the equation, mol ratio of H₂O : O₂ = 2 : 2, so moles O₂ :
= 2/2 x moles H₂O
= 2/2 x 24
= 4 moles
