Balance the following chemical equation by providing the correct coefficients.
I’ll put a pic.
Please help!!!!!!!
Answers
Answer:
[2]HBr + [ ] Ba(OH)2 ➖ [ ] BaBr2 + [2] H20
Hope it will help :)
Related Questions
Why does the sun seem to change position in the sky?
Answers
The first major contributor to the Sun's apparent motion is the fact that Earth orbits the Sun while tilted on its axis. The Earth's axial tilt of approximately 23.5° ensures that observers at different locations will see the Sun reach higher-or-lower positions above the horizon throughout the year.
hope this helps ^^
Answer:
Because the earth rotation, when we move around the sun for a whole 365 times then we will have passed 1 year.
During combustion what type of chemical reaction takes place
Answers
for example :
C+O2.........)CO2 +heat and light
Potassium permanganate (KMnO2) is used as an explosive agent. How
many moles are there if we have 105.66 grams of potassium
permanganate?
Answers
Answer:
0.67mole
Explanation:
Given parameters:
Mass of potassium permanganate = 105.66g
Unknown:
Number of moles = ?
Solution:
To find the number of moles of the given compound;
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of KMnO₄ = 39 + 55 + 4(16) = 158g/mol
Number of moles = [tex]\frac{105.66}{158}[/tex] = 0.67mole
2. When an atom loses an electron, it becomes a
_a._positive ion.
c. neutral ion.
b. negative ion.
d. neutral atom.
Answers
Answer:
A
Explanation:
Atoms of elements can lose or gain electrons making them no longer neutral, they become charged. A charged atom is called an ion. When an atom loses electron(s) it will lose some of its negative charge and so becomes positively charged. A positive ion is formed where an atom has more protons than electrons.
If a pea plant has a tall stem, what possible combinations of alleles could it have?
Answers
Answer:
controls stem height in peas, for example, has one allele for tall stems and one allele for short stems. Each pea plant inherits a combination of two alleles from its parents either two alleles for tall stems, two alleles for short stems, or one of each. Individual alleles control the inheritance of traits
Explanation:
pls helppp
How many energy must be absorbed by 150.0 grams of water to raise it's temperature by 50.00°C?
Answers
The heat absorbed to raise temperature : Q = 31350 J
Further explanationGiven
m = mass = 150 g
Δt = Temperature difference : 50 °C
Required
Heat absorbed
Solution
Heat can be formulated
Q = m.c.Δt
The specific heat of water = c = 4.18 J/g °C
Input the value :
Q = 150 x 4.18 x 50
Q = 31350 J
1.Which form of energy is due to the motion of an object's particles .
A. thermal energy, B.chemical energy C.mechanical energy D.electromagnetic energy
Answers
Answer:
thermal
Explanation:
Thermal energy is due to the motion of an object's particles, due to the random movement of molecules in a system, thermal energy also known as random or internal kinetic energy is produced, hence option A is correct.
Atoms or molecules in motion are the source of thermal energy. An object's thermal energy rises as its temperature rises because the movement of its molecules or atoms accelerates. It is possible to transmit an object's thermal energy to another.
Thermal energy, also known as random or internal kinetic energy, is created when molecules in a system move randomly, as a result of the motion of an object's particles.
Learn more about thermal energy, here:
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Someone help plzzzz just need final answers I’ll mark Brainly
Answers
Answer:
Omodium
Explanation:
It’s Umodium
A gas has 1.2 L of volume, 1.8 atm of pressure and 264 K temperature. If both the
volume was doubled but the pressure was halved, what would the new
temperature be?
Your answer
Answers
Temperature does not change, remains 264 K
Further explanationGiven
V₁= 1.2 L
P₁ = 1.8 atm
T₁ = 264
Required
The new temperature
Solution
The volume was doubled = 2V₁ = 2 x 1.2 = 2.4 L(V2)
The pressure was halved = 0.5P₁ = 0.5 x 1.8 = 0.9 atm(P2)
Combined gas law :
P₁V₁/T₁=P₂V₂/T₂
Input the value :
[tex]\tt \dfrac{1.8\times 1.2}{264}=\dfrac{0.9\times 2.4}{T_2}\\\\T_2=264[/tex]
2Na + 2H2O → 2NaOH + H2
How many grams of NaOH could you make with 8.0465 g of Na?
? g NaOH (use 5 sig fig
Answers
13.994 grams
According to the stoichiometry of the given chemical equation, 13.9939 grams of NaOH would be made with 8.0465 g of Na.
What is stoichiometry?Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.
Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample. It is useful in balancing chemical equations and making solutions of different concentrations.As according to the given chemical equation 46 g sodium gives 80 g sodium hydroxide, thus, 8.0465 g of sodium will give 8.0465×80/46=13.9939 grams.
Thus, 13.9939 grams of NaOH would be made with 8.0465 g of Na.
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What is the reaction of Fe + AgC2H9O2?
Answers
Answer:
To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. The balanced equation will appear above. Use uppercase for the first character in the element and lowercase for the second character. Examples: Fe, Au, Co, Br, C, O, N, F. Ionic charges are not yet supported and will be ignored.
Explanation:
What method would a geologist use to determine the approximate age of a rock found in a newly discovered formation?
Answers
What happens to the mass of a substance when it is heated, cooled, or mixed with other substances?
Answers
Answer:
the total weight of matter is conserved.
Explanation:
:)
Plz plz plz plz answer I have not much time
Fourth option is a neutral boron atom.
Answers
Definition surface water
Answers
Answer:
Surface Water - water that collects on the surface of the ground. Hope it helped!
Answer: surface water is when water is located of top of the Earth for example rivers, creeks, and wetlands.
HELPP ME PLEASE PLEASE PLEASE IM BEGGING YOU!
Forty percent of atoms of an element have a mass of 16 AMU. sixty percent of atoms have a mass of 18 AMU. What is the average atomic mass, in AMU, of this element?
Answers
Answer:
(16)(.40)+18(.60)= Then the average atomic mass in amu is 17.2a) Compare the masses of the three cylinders. (1 point)
b) Compare the volumes of the three cylinders. (1 point)
Answers
Answer:
the answer would be ;B compare the volumes of the three cylinders
Write the full electron configuration of calcium.
152 2s22p6 352 4s2
Use the electron configuration to predict the most likely oxidation state of calcium?
(Explain your answer please)
Answers
Answer: [tex]1s^22s^22p^63s^23p^64s^2[/tex] , oxidation state = +2
Explanation:
Electronic configuration represents the total number of electrons that a neutral element contains. We add all the superscripts to know the number of electrons in an atom. The electrons are filled according to Afbau's rule in order of increasing energies.
The electronic configuartion of Calcium with atomic number 20 is :
[tex]Ca:20:1s^22s^22p^63s^23p^64s^2[/tex]
As calcium can easily lose its two valence electrons to attain stability , its oxidation state is +2.
[tex]Ca^{2+}:18:1s^22s^22p^63s^23p^6[/tex]
Which of the following is the mass in grams of 1 mole of a substance?
Answers
Answer:
he molar mass is defined as the mass in grams of 1 mol of that substance. One mole of isotopically pure carbon-12 has a mass of 12 g
Explanation:
What kind of reaction is this?
1. Synthesis
2. Decomposition
3. Single Replacement
4. Combustion
5. Double replacement
6. Acid-Base
Answers
Answer:
que se yohdhdhdjdjudbdudbudbff
Draw the Lewis structure for the compound beryllium nitride, with chemical formula Be3N2
Answers
Answer:online research
Explanation:
6. Which type of force(s) will cause a change in an object's motion? *
A) Balanced Forces
O B) Unbalanced Forces
Answers
Unbalanced forces cause a change in motion, speed, and/or direction. When two forces act in the same direction on an object, the net force is equal to the sum of the two forces.
Answer:
B.Unbalanced .............
n the electron-dot symbol
the dots represent electrons located in —
s, p, and d sublevels.
p sublevels, only.
s sublevels, only.
s and p sublevels, only.
Answers
Answer:
They represent the valence electrons, so s and p sublevels only! This does not include the d block!
A mixture of tea,
lemon juice, and
sugar is an example
of what?
Answers
Answer:
Explanation:
That in the liquid, the sugar is completely dissolved. Lemon juice, water, and sugar are combined together and form a solution. A solution is a mixture in which the various types of matter are evenly spread out. Water is considered the solvent of lemonade.
If you used 10 grams of aluminum, how many moles of aluminum chloride can be produced?
Answers
Answer:
When 20.0 grams of aluminum and 30.0 grams of chlorine are reacted according to the above equation, the chlorine is the limiting reactant and the maximum yield of aluminum chloride is 0.28 moles or 37.33 grams.
the element found in group iiia and in period 2 is called
Answers
Answer:
Boron
Explanation:
The group III A is also known in the periodic table as group 13. The members of the group begin to appear in the second period.
At the beginning of this group III A is boron. Boron is a member of group III A as well as a member or period 2.
Boron is a metalloid and has only three valence electrons as other group III A elements.
How many atoms are in 12 moles of silver?
Answers
Answer:
NA=72.264x1023
Explanation:
I got you
Complete the table by checking the correct column(s) for each description.
Description
Isotonic
Solution
Hypotonic
Solution
Hypertonic
Solution
7. A solution that has the same osmotic
concentration as a cell's cytoplasm
8. A solution that causes a cell to shrivel
9. A solution that causes a cell to swell
10. A solution that neither shrinks nor swells a cell
11. A solution in which there is more water outside
the cell than inside the cell
12. A solution that causes water to move out of a cell
Answers
Answer:
7. isotonic
8. hypertonic
9. hypotonic
10. isotonic
11. hypotonic
12. hypertonic
Ilsa showed her parents a trick she learned in science class. She used water to make ice cubes. Ilsa then placed some ice cubes in a glass containing a clear liquid. The ice cubes floated. She then placed some ice cubes in another glass that also contained a clear liquid. In this glass, the ice cubes sank to the bottom of the glass. Ilsa did not tell her parents that the first glass contained water while the second glass contained rubbing alcohol. What can you conclude from this information?
A.
The ice cubes changed their density.
B.
Water has the same density as alcohol.
C.
Water has a greater density than alcohol.
D.
Alcohol has a greater density than the ice cubes.
Answers
Answer:
C. Water has a greater density than alcohol.
Explanation:
From the experiment, it can be shown that water has a greater density than the alcohol.
The ice cube is able to float in the water because, the density of the ice is less than the density of the water.
Density of ice < Density of water
So, the ice cube sinks in alcohol because the density of the ice cube is greater than the density of the alcohol.
Density of ice > Density of alcohol
Therefore, we can assume that since the density of ice is greater than density of alcohol, then the density of water is greater than that of the alcohol.
Chemical equilibrium is relatively rare in living cells. An example of a reaction at chemical equilibrium in a cell would be
Answers
Answer:
(D) a chemical reaction in which both the reactants and products are not being produced or used in any active metabolic pathway
Explanation:
A) a reaction in which the free energy at equilibrium is higher than the energy content at any point away from equilibrium
B) a chemical reaction in which the entropy change in the reaction is just balanced by an opposite entropy change in the cellʹs surroundings
C) an endergonic reaction in an active metabolic pathway where the energy for that reaction is supplied only by heat from the environment
D) a chemical reaction in which both the reactants and products are not being produced or used in any active metabolic pathway
E) no possibility of having chemical equilibrium in any living cell
The correct answer for a reaction that describes chemical equilibrium in a cell would be a chemical reaction in which both the reactants and products are not being produced or used in any active metabolic pathway .
A reaction in chemical equilibrium is a bi-directional reaction in which both the reactants and the products are present in a stoichiometrically balanced way within the system at a given period of time under specific conditions.
From the definition, a reaction would be in equilibrium if
both the reactant and product are present but have ceased being producednone of the reactant or product is being used by another process within the cell.The correct option is, therefore, D