Answer:
1 molecule of P4O10 reacts with 6 molecules of H2O to form 4 molecules of H3PO4.
1 mol of P4O10 reacts with 6 mol of H2O to form 4 mol of H3PO4
Explanation:
It is important to interpret chemical equations in words. It is conventional to show chemical equations in symbols and then express those symbols in words and sentences when reading the chemical equation.
Considering the symbol equation;
P4O10+6H2O → 4H3PO4
It simply means that; 1 mol of P4O10 reacts with 6 mol of H2O to form 4 mol of H3PO4 or 1 molecule of P4O10 reacts with 6 molecules of H2O to form 4 molecules of H3PO4.
This is exactly the information coded in the chemical equation
In a single carbon bond, two carbon atoms share
pair of electrons.
Answer:
C-C
A carbon has 4 valence electrons meaning it can share 4 electrons and is in short of 4 electrons to fill it outer energy shell making it 8. Which results to 2 double covalent bonds ,meaning there was a sharing of 2(4) = 8 electrons . Hope this helps . Your statement above is true .
Assuming that the trends continue, which of the following compound will have the greatest solubility at 120 ℃? The graph below shows the solubility of a variety of compounds.
A. Ce2(SO4)3
B. K2Cr2O7
C. NaCl
D. Pb(NO3)2
Answer:
its c
Explanation:
i took the test and got a 100
Assuming that the trends continue, sodium chloride compound will have the greatest solubility at 120 ℃.
What is solubility?Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.
The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.Concept of solubility is not valid for chemical reactions which are irreversible. The dependency of solubility on various factors is due to interactions between the particles, molecule or ions.
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The process of energy being captured
by plants from the sun and then
transferred from one organism to the
next in the food chain is called
A food flow
B energy flow
C nutrient flow
D water flow
Answer:
B
Explanation:
I am not sure but I think it is B. Out of all the answers that one makes sense.
If you have 5 moles of carbon dioxide at 30degrees C and under 600mmHg of pressure, what will the volume be
Answer:
157.64 L
Explanation:
We'll begin by converting 30 °C to Kelvin temperature. This can be obtained as follow:
T(K) = T(°C) + 273
T(°C) = 30 °C
T(K) = 30 °C + 273
T (K) = 303 K
Next, we shall convert 600 mmHg to atm. This can be obtained as follow:
760 mmHg = 1 atm
Therefore,
600 mmHg = 600 mmHg × 1 atm / 760 mmHg
600 mmHg = 0.789 atm
Finally, we shall determine the volume of the gas. This can be obtained as follow:
Number of mole (n) = 5 moles
Temperature (T) = 303 K
Pressure (P) = 0.789 atm
Gas constant (R) = 0.0821 atm.L/Kmol
Volume (V) =?
PV = nRT
0.789 × V = 5 × 0.0821 × 303
0.789 × V = 124.3815
Divide both side by 0.789
V = 124.3815 / 0.789
V = 157.64 L
Therefore, the volume of the gas is 157.64 L
PLEASE HELP FIRST GETS BRAINLIEST
Answer:
c i guess, decrease temperature
K/U_____ /13 T/I______/5
Knowledge and Understanding
1. Complete the following chart: [9 Marks]
Name (1 mark each)
Formula
Type of Compound (Ionic or Molecular) (1/2 mark each)
Diphosphorus Pentoxide
CBr4
Li2O
Silicon Dioxide
CH4 (Write the common name)
Manganese (III) Fluoride
Answer:
it shouuld be the third one down c
Explanation:
what are the three major types of water pollutants? Name and describe a few examples for each one.
Answer:
b
Explanation:
Calculate the [H3O+] of an aqueous solution that is 1.94 x 10-7 Min OH.
Enter your answer in scientific notation. Be sure to answer all parts.
_x 10^_M
16. The exothermic reaction between liquid hydrazine (N,H) and liquid hydrogen peroxide is used to
fuel rockets in the chemical equation: N,H,+ 2 H,0,0 → N,®) + 4H2O(g). What
mass of water vapor is produced from the reaction of 2.7747 moles of hydrogen peroxide?
Help!!! In a test
Answer and Explanation:
N2H2 + H2O2 = N2 + 2 H2O 2.7747 moles of HOOH (hydrogen peroxide)=5.5494 moles of H2O
Which equation represents a fusion reaction?
Please answer asap
(Look at picture)
Answer:c
Explanation:
What shape is formed from water?
Linear
Bent 120
Bent 109.5
Trigonal Planar
Answer:
linear
Explanation:
.....................…...…
Explanation:
bent with an H-0-H angle if 104.5°
3. Components in a heterogeneous mixture are not in the same phase or the composition of the mixture is
a) uniform
b) transparent
c) uneven
4. Mixing sand and salt in water then passing it through a filter separates out the sand because salt
in water and sand does not.
a) reacts
b) dissolves
c) disappears
Answer:
c
Explanation:
Now balance the chemical
reaction by providing the correct
whole number coefficients:

Answer:
2(C4H10)+13(O2)->8(CO2)+[](H20)
Explanation:
sorry i couldn’t get the last one
The chemical reaction by providing the correct whole number coefficients: number coefficients will be 2C4H10 + 13O2 WILL GIVE 8CO2 + 10H2O .this will be the balanced reaction.
What is the balanced reaction?Balance elements in the equation other than O and H. Balance the oxygen atoms by adding the appropriate number of water ( H 2O) molecules to the opposite side of the equation.
Balance the hydrogen atoms (including those added in step 2 to balance the oxygen atom) by adding H + ions to the opposite side of the equation.
When writing an equation for a chemical reaction, the two sides of the equation should balance and need the same number of each kind of element on both sides.
Therefore the given chemical equation is balanced in the following form, 2C4H10 + 13O2 WILL GIVE 8CO2 + 10H2O
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What is the acid dissociation constant for an acid at equilibrium, HX = H+ +X- ?
Ka = [H+] [X-] ÷ [HX] is the acid dissociation constant for an acid at equilibrium.
What is chemical equilibrium?Chemical equilibrium is the condition in which no net change in the amounts of reactants and products occurs.
HX(aq) ↔ H+(aq) + X-(aq)
[H+] = [X-]
Ka = [H+] [X-] ÷ [HX]
Hence, Ka = [H+] [X-] ÷ [HX] is the acid dissociation constant for acid at equilibrium.
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A solution with a pOH level of 9.2 would be considered as a basic, acidic, or neutral.
Answer:
It would be Basic.
Explanation:
The higher the number, the more basic it is.
Answer:
its basic solution
Explanation:
b/c the pH value greater than7 base
follow me thank you enjoy younow nice study
what is the oceanic and continental crust made out of ?
Answer:
Oceanic crust is generally composed of dark-colored rocks called basalt and gabbro. It is thinner and denser than continental crust, which is made of light-colored rocks called andesite and granite. The low density of continental crust causes it to “float” high atop the viscous mantle, forming dry land.
Explanation:
plz help me.....im new here
Answer:
Fe2S3
Explanation:
Answer:
Option 3rdFe2S3
Explanation:
As, the ionic valency of Iron (Fe) that is + 3 interchanges with the ionic valency of Sulphide that is - 2 to form-
Fe2S3
From the table of data, substance C will have the least of the original amount remaining after 30 days even though it started with the most.
which is the best explanation for this answer?
A)Substances A and B are not as radioactive since they have longer half-lives.
B)The states of matter for substances A & B are more volatile than substance C.
C)Substances that start with large amounts will always decay at faster rates.
D)Substance C goes through a significantly larger amount of half-lives compared to the other substances.
Answer:
D)Substance C goes through a significantly larger amount of half-lives compared to the other substances.
Explanation:
Half life refers to the time taken for a radioactive isotope to decay to half of the original amount of radioactive substance present initially.
The shorter the half life of a radioactive substance, the more the amount of half-lives the substance undergoes within the given time period. Substance A will undergo five half lives within 30 days. Substance B will undergo six half lives within 30 days while substance C will undergo ten half lives within 30 days.
Since Substance C undergoes the highest amount of half lives within 30 days, substance C will have the least of the original amount remaining after 30 days even though it started with the most.
Guys what is this plz
Answer:
nunya
Explanation:
business
When 1 mol of Zn reacts with 0.8 mol of HCI, which of the following will be true?
Answer:
Zn is the excess reagent
Explanation:
What living characteristics do viruses have?
when pressure is kept constant then the temperature varies with volume
a. directly
b. inversely
c. none of these
d. both a and b.
Answer:
A
Explanation:
Raise the temperature of 2 g of water 2°C.
Answer:
This heat requirement we can calculate by following relationship..
Q = m*C*∆T
We have, m = 2gm, C = 1 cal/g-degC, ∆T = 2 degC
Putting all these values in above equation we get
Q= 2*1*2 = 4 cal
Add the missing words !! (Provided is the lines and it signifies the number of words) 1.) It is the composition of all compounds -> _ _ _ _ _ 2.) It describes the crystals of ionic solids -> _ _ _ _ _ 3.) What is shared unequally in a polar bond? -> _ _ _ _ _ _ _ _ 4.) Number of shared electrons in N2 -> _ _ _ 5.) What happens to electrons in the formation of ionic bonds? -> _ _ _ _ _ _ _ _ 6.) What are these intermolecular forces that caused low melting and boiling points? -> _ _ _ _ 7.) What must be added to break bonds? -> _ _ _ _ _ _
Answer:
1. Atoms
3. Electrons
4. 3 pairs
5. Complete transfer of electrons
6. London dispersion forces
7. Energy
Explanation:
Atoms are the building block from which a compound is formed so we can say that composition of compounds depends on type of atoms. Electrons are shared unequally in a polar bond due to difference in electronegativity values of bonded atoms. There are 3 pairs of electrons are shared in nitrogen molecule. The transfer of electrons occurs from one atom to another in the formation of ionic bonds. London dispersion forces are the intermolecular forces that is responsible for the low melting and boiling points of a molecule or compound. Energy is needed to break the bonds that is present between the two bonded atoms.
What is one definition of a base?
O A. A substance that increases the hydroxide ions in a solution
B. A substance that forms a salt when it dissolves in water
O C. A substance that stops the flow of electrons when dissolved
O D. A substance that makes the pH of a solution more acidic
Answer:
the answer is A
Explanation:
The base increases Hydroxide ions in a solution e.g NaOH
Answer:
A
Explanation:
why would a metal house not be a good idea in Florida or Alaska?
Answer: Maybe, It could be a good and bad idea.
Explanation:
This is beacuse Metal does not absorb and can block sunlight.
density is the ratio of mass per unit volume. fact or bluff
Answer:
Fact
Explanation:
what happens to halogens on going top to bottom in their group
they remain as they are and don't change their type
solve for x 5 to the power 2 x + 4 - 25 to the power x - 1 is equals to
Answer:
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If I start with.30 moles of AgNO3 and.35 moles of Li, what is my limiting reactant?
Answer:
AgNO₃ will be the limiting reagent.
Explanation:
The balanced reaction is:
AgNO₃ + Li → LiNO₃ + Ag
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate:
AgNO₃: 1 mole Li: 1 mole LiNO₃: 1 mole Ag: 1 moleTo determine the limiting reagent, you can use a simple rule of three as follows: if by stoichiometry [tex]moles of AgNO_{3} =\frac{0.35 moles of Li*1 mole of AgNO_{3}}{1 mole of Li}[/tex]AgNO₃, how much moles of AgNO₃ will be needed if 0.35 moles of Li react?
moles of AgNO₃= 0.35
But 0.35 moles of AgNO₃ are not available, 0.30 moles are available. Since you have less moles than you need to react with 0.35 moles of Li, AgNO₃ will be the limiting reagent.