Answer: from the lies this is synthesis reaction
Explanation:
It's also oxidation-reduction reaction. Li is oxidised and
H is reduced
The given reaction of lithium metal with water is an example of replacement reaction where, the OH group from water is replaced into LiOH.
What is replacement reaction?A replacement reaction is a type of reaction in which the an atom or group of one reactant is replaced into other reactant. Other type of reactions are combination reaction, decomposition etc.
In a combination reaction, two reactants combine together to form a product without any regrouping. In decomposition reaction a reactant is decomposing to form two or more constituent groups or molecules.
Combustion is the reaction of compound with oxygen to form water and carbon dioxide and synthesis is the making of new product using some reagents going through certain stages.
Hence, the reaction of lithium with water forming lithium hydroxide is a replacement reaction.
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Refer to the following balanced equation in which ammonia
reacts with nitrogen monoxide to produce nitrogen and water.
4NH3(g) + 6NO(g) → 5N2 (9) + 6H20(1)
How many moles of NH3 are necessary to produce 0.824
mol N2 ?
mol NH3
-Your answer should be rounded to three significant figures.
-Do not Include units
in your answer.
Answer:
0.659
Explanation:
n(NH3)/n(N2)=4/5
n(NH3)=4/5×0.824 =0.659
helpppppp plssssssss does anyone know this ? what type of structure is shown in the diagram?
Answer:
the structure of atom which discovered by Thomson the describe on how the sub-atomic particles are arranged in an atom
Cuáles son el pHy PoH de una solución cuya concentración de iones hidronio [H+]es de 0.000475 M de acido sulfurico?
Please help
Why it it not recommended to spill water over a fire that has erupted due to a short circuit?
Answer:
Dear frnd, water is a conductor of electricity and short circuit means a damage in electrical component in a device. Thus,water will spread the fire.
Explanation:
Pls mark as brainliest.Rocket Out
Which element will form an ionic bond with chlorine (Cl): bromine (Br) or magnesium (Mg)
Answer:
The answer is Magnesium
HEELPPP!!!
What is the charge of the nucleus?
a) negative
b) positive
c) neutral
Answer:positive
Explanation:
Answer:
Positive.
Explanation:
Since a neutral charge won't cancel out a positive charge, the overall charge of a nucleus is positive.
does anyone have the gizmo cell types answer key for activity d?
Answer:
im sorry i dont
Explanation:
True or false: Sometimes older rocks end up on top of younger rocks.
Answer:
true
downstream to the riverbed. However, the most common mechanism to produce older rocks on top of younger is by thrust faulting. Thrust faults form where rocks are being compressed, usually by plate tectonic mechanisms. Thrust faults rip up older strata and pile it on top of younger rocks.
Explanation:
Daniel is conducting an experiment on magnetic objects. He completes more than one trial. Why is it important for Daniel to do this?
The conclusion is less accurate.
The conclusion is more accurate.
There is a greater chance of error.
The results will be inaccurate.
Answer:The conclusion is less accurate.
Explanation:
Feb 17, 2021 — He completes more than one trial. Why is it important for Daniel to do this?
what type of solid is H20 (ice)?
Answer:
Ice is a molecular and crystalline solid.
Explanation:
Water freezes at 0 degrees Celsius; it has strong molecular bonds between the hydrogen and oxygen atoms of each molecule, and weaker intermolecular bonds between each molecule of water. The polarity of the molecules helps align them into an organized, repeating patterned, crystalline structure when a solid.
In a victor Mayer's experiment 0.33g of organic liquid of molecular weight 120g/mol was vaporized at 293k and 1.013 *10 N/ m calculate the vol in cm3 of air displaced
Answer:
66.13 cm³
Explanation:
Using the ideal gas equation, PV = mRT/M where P = pressure = 1.013 × 10⁵ N/m², V = volume of liquid vaporized = volume of air displaced, m = mass of organic liquid = 0.33 g, M = molar mass of gas = 120 g/mol and R = molar gas constant = 8.314 J/mol-K and T = temperature at vaporization = 293 K.
PV = mRT/M
So, V = mRT/PM
Substituting the values of the variables into the equation, we have
V = 0.33 g × 8.314 J/mol-K × 293 K/(1.013 × 10⁵ N/m² × 120 g/mol)
V = 803.881/121.56 × 10⁻⁵ m³
V = 6.613 × 10⁻⁵ m³
V = 6.613 × 10⁻⁵ × 1m³
V = 6.613 × 10⁻⁵ × 10⁶ cm³
V = 6.613 × 10 cm³
V = 66.13 cm³
What is the molar mass of H2CO3?
(atomic mass: C = 12.01, H = 1.01, O = 15.99)
Answer:62.00 g/mol you just need to look up every element atomic mass, and then multiply it by the number of atoms and then add it
The molar mass is equal to the sum of atomic mass of an atom.The molar mass of H₂CO₃ is 60.99.
What do you mean by molar mass ?Molecular weight M is a chemical compound's mass divided by its amount of substance measured in moles. MB = m/nB, where m is the total mass of a pure substance sample and nB is the amount of substance B given in moles.
The weight of one mole of a sample is defined as its molar mass. To calculate a molecule's molecular mass, multiply the subscript (number of atoms) by the atomic mass of each element in the molecule, then add the masses of all the elements in the molecule.
Finding the molar mass of a single element is a piece of cake. All you have to do is look up the element's atomic mass on the periodic table.
Given:
atomic mass: C = 12.01, H = 1.01, O = 15.99
The molar mass of H₂CO₃ = 1 × 1.01 + 12.01 + 3 × 15.99
= 1.01 + 12.01 + 47.97
= 60.99
Thus, The molar mass of H₂CO₃ is 60.99.
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A friend insists that using an electric drill in his flooded basement is safe because, he says, “Water doesn’t conduct electricity.” What would you say to your friend?
Answer:
I will say to my friend that
pure or distilled water does not conduct electricity
but instead of this.
water conduct electricity
be aware of it
45.89 g of Hydrogen atoms contains how many moles of Hydrogen
atoms?
Please show work it’s due in 5 minutes I’ll give brainliest
2.63 g
Explanation:
One way to approach this problem is to determine the percent composition of hydrogen in water.
What type of galaxy is pictured?
A.) elliptical
B.) irregular
C.) lens
D.) spiral
The volume of a gas is 400 mL when the pressure is 1 atm. At the same temperature, what is the pressure at which the volume of the gas is 2 L
Answer:
the pressure is equal to 0.2atm
The pressure at which the volume of the gas is 2 L at the same temperature as when the volume of a gas is 400 mL and pressure 1 atm is 0.2 atm.
What is the combined Gas Law?According to combined gas law,
[tex]\rm \dfrac{PV}{nT} = R[/tex]
In the Combined Gas Law,if we change either one of the variables the others will also change.
When the moles of the gas is constant , the above equation can be written as ,
[tex]\rm \dfrac{P'V'}{T'} = \dfrac{PV}{T}[/tex]
Given is P = 1 atm , V= 400ml , V'= 2L= 2000ml , P'= ? T=T'
So we will substitute the values in the above formula keeping temperature constant.
[tex]\rm P'V' = PV\\\\\rm P' \times 2000 = 1 \times 400\\ \\\m P'= \dfrac{1\times 400}{2000} = 0.2 \; atm\\\\\rm P' = 0.2 \; atm\\[/tex]
Therefore the pressure at which the volume of the gas is 2 L at the same temperature as when the volume of a gas is 400 mL and pressure is 1 atm is 0.2 atm.
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Ammonium perchlorate NH4ClO4 is the solid rocket fuel used by the U.S. Space Shuttle. It reacts with itself to produce nitrogen gas N2, chlorine gas Cl2, oxygen gas O2, water H2O, and a great deal of energy. What mass of chlorine gas is produced by the reaction of 3.3g of ammonium perchlorate? Be sure your answer has the correct number of significant digits.
Answer: 0.99 grams of chlorine gas is produced by the reaction of 3.3g of ammonium perchlorate
Explanation:
To calculate the moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}[/tex]
[tex]\text{Number of moles of } NH_4ClO_4=\frac{3.3g}{117.5g/mol}=0.028moles[/tex]
The decomposition of ammonium perchlorate is :
[tex]2NH_4ClO_4\rightarrow Cl_2+N_2+2O_2+4H_2O[/tex]
According to stoichiometry :
2 moles of [tex]NH_4ClO_4[/tex] produce = 1 mole of [tex]Cl_2[/tex]
Thus 0.028 moles of [tex]NH_4ClO_4[/tex] produce=[tex]\frac{1}{2}\times 0.028=0.014moles[/tex] of [tex]Cl_2[/tex]
Mass of [tex]Cl_2=moles\times {\text {Molar mass}}=0.014moles\times 71g/mol=0.99g[/tex]
Thus 0.99 grams of chlorine gas is produced by the reaction of 3.3g of ammonium perchlorate
what reaction is 3Pb + 2H₃PO₄ ----> 3H₂ + 1Pb₃(PO₄)₂ *
Answer: double replacement
Explanation:
Answer:
Single Replacement
Explanation:
A + BC --> AC + B
A=Pb
B=H
C=PO4
please help, i will give brainlist, I'm desperate
Answer:
hydrogen
Explanation:
this is a reaction between to elements your other element would consist of deuterium but since you pick one you pick the only elemnt that creates this newclear fusion.
An ore is a combination of a metal and another element. TRUE OR FALSE
Answer:
Explanation:
ℎ ℎ
Who is wise president of india?
________________________
WILD GUESS
OUT OF BAKUGOU SHOTO AND DEKU
GUESS WITCH ONE I SIMP FOR
Answer: all of them?
Explanation:
Answer:
Deku.
Explanation:
The teacher asked the students to design an experiment that would demonstrate that temperature will affect the pressure of a gas. Which of the
following would be a valid experiment that shows the correct relationship between gas temperature and pressure?
The correct option is option A. when the students check the air pressure of bicycle tires, once by keeping it out in the winter and noticing the air pressure being decreased and after by keeping the bicycle inside at room temperature and noticing that the air pressure has increased.
How are pressure and temperature of a gas related ?
According to Gay lussac's law, the temperature and pressure of a gas are directly proportional to each other, provided the volume is constant.
When the temperature of a gas is increased, the molecules gain more kinetic energy and hence the frequency of them hitting the walls of the container increases which basically implies that the pressure increases.
On the other hand when the temperature is low, the molecules do not have substantial kinetic energy to hit the walls of the container frequently, that is the pressure decreases.
When the bicycle tires were kept out in the winter, the low temperature decreased the air pressure inside the tires. While when they were warmed at room temperature, the pressure inside the tires increased.
Therefore, the correct option is option A. when the students check the air pressure of bicycle tires, once by keeping it out in the winter and noticing the air pressure being decreased and after by keeping the bicycle inside at room temperature and noticing that the air pressure has increased.
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(GIVING BRAINLIEST)
....
Answer:
C
Explanation:
Because a planet is a celestial body distinguished from the fixed stars by having an apparent motion of its own (including the moon and sun), especially with reference to its supposed influence on people and events.
Answer:
it is the second one ;)
Explanation:
Using the reaction C12H22O11 + 12 O2 ->12CO2 + 11H2O (e). How many grams of carbon dioxide can be produced from 456.7g sucrose
Answer:
704.6 g CO2
Explanation:
MM sucrose = 342.3 g/mol
MM CO2 = 44.01 g/mol
g CO2 = 456.7 g sucrose x (1 mol sucrose/MM sucrose) x (12 moles CO2/1 mol sucrose) x (MM CO2/1mol CO2) = 704.6 g CO2
How does a hydroelectric power plant convert energy?
A. As water flows through the channels toward the turbines, it has kinetic energy. This is changed to mechanical energy as the water turns the turbines. Then the mechanical energy of the turbines is changed to electrical energy by the generator.
B. As water flows through the channels toward the transformer, it has potential energy. This is converted to electrical energy by the transformer, and then the energy is magnified by the generator.
C. As water flows through the channels toward the generator, it has potential energy. This is changed to electric energy as the generator rotates. Some of the electric energy is used to change water's energy into kinetic energy.
D. As water flows through the channels toward the turbine, it has kinetic energy. This is changed to potential energy within the turbine. This potential energy is converted to electrical energy by the transformer.
PLS HELP I WILL GIVE BRAINLYIST!!!
A scientist is measuring dissolved oxygen levels in a lake over a period of one year. Which collection of samples would ensure consistency regarding these measurements?
A. samples from the same locations and at the same depths each week
B. samples from different locations and at different depths
C. samples from the same locations but at different depths each month
D. samples from different locations at the same depth and at the beginning and end of the year
Answer: A
Explanation:
Is this balanced ?2 Fe(NO3)3 + 3 MgSO4 → 3 Mg(NO3)2 + 2 Fez(SO4)3
it shoudl be : 2Fe(NO3)3 + 3MgSO4 → 3Mg(NO3)2 + Fe2(SO4)3
(the difference is Fe2(SO4)3 has no coefficient)
How many moles are in 58.6 L of N2gas at STP?
Answer:
[tex]\boxed {\boxed {\sf 2.62 \ mol \ N_2}}[/tex]
Explanation:
The relationship between moles and gases is unique. Regardless of the type of gas, there will always be 22.4 liters of gas in 1 mole, as long as it's at STP (standard temperature and pressure).
We can make a ratio using this information.
[tex]\frac {22.4 \ L \ N_2}{ 1 \ mol \ N_2}[/tex]
Multiply by the given number of moles.
[tex]58.6 \ L \ N_2 *\frac {22.4 \ L \ N_2}{ 1 \ mol \ N_2}[/tex]
Flip the fraction so the liters of nitrogen cancel.
[tex]58.6 \ L \ N_2 *\frac {1 \ mol \ N_2}{ 22.4 \ L \ N_2}[/tex]
[tex]58.6 *\frac {1 \ mol \ N_2}{ 22.4 }[/tex]
[tex]\frac {58.6 \ mol \ N_2}{ 22.4 }= 2.61607143 \ mol \ N_2[/tex]
The original measurement of liters has 3 significant figures, so our answer must have the same.
For the number of moles calculated, 3 sig figs is the hundredth place. The 6 in the thousandth place tells us to round the 1 to a 2.
[tex]2.62 \ mol \ N_2[/tex]
58.6 liters of N₂ gas at STP is equal to about 2.62 moles.
Earth
Moon
SUN
Based on the diagram above, what moon phase would most likely be occurring?