Answers
Answer:
2Al + 3Na2SO4 -----> Al2(SO4)3 + 6 Na
Explanation:
Product should be Al2(SO4)3
Because Al contains +3 charge
And SO4 contains -2 charge
To balance this postive and negative charge we multiple +3 with 2 and -2 with 3
Related Questions
Which physical properties do glass and ice share? Select the two correct
answerS.
DA Density
D B. State
DC. Melting point
D D. Brittleness
SUBMIT
Answers
B, C
verified just did it
B. State
C. Melting Point
Both ice and glass comes under the category of solids since they have definite shape and definite volume. Both the ice and glass allows light to pass through it, that means they are transparent in nature.Ice floats, we can infer that ice must be less dense than water. If water is frozen in a glass jar, the glass jar breaks. This implies they both have similar densities.Thus, options B and C are correct.
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What is the molar mass of phosphorus pentachloride and uranium hexafluoride?
Answers
Answer:
PCl₅ = 208.22g/mol. UF₆ = 352.03g/mol.
Explanation:
Find the atomic mass of each element–and if there's a subscript (you multiply the atomic mass by that much). P= 30.97g, Cl= 35.45g; 30.97+35.45(5) = 208.22g [same idea with UF₆]
What is the name given to the group 0 elements
Answers
Answer:
the noble gases
Answer correctly please !!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!
Answers
Question 5 (2 points)
Which of the following has a higher boiling point, CO2 or Co? Explain.
Answers
Answer:
CO2 has higher boiling point as compared to CO
Explanation:
Because CO is linear molecule anf zero dipole moment while CO2 is non linear and it has dipole moment
Food undergoes both physical and chemical changes during digestion. Which parts of the digestive process listed below is a physical change that takes place in the mouth?
Answers
Answer:
To answer your question use the code ICE on here to get your answer works every time for me hope this helps
Which is the best example of forces acting in the same direction?
Answers
What is the coordination number for Potassium Nitrate?
Answers
Answer:
The coordination number is 8
Potassium nitrate has an octahedral coordination structure
What is the force of attraction between two atoms that are combined?
a. chemical bond
b. atomic bond
c. physical property
d. magnetic bond
Answers
Answer:
a
Explanation
Chemical bond refers to the forces holding atoms together to form molecules and solids. This force is of an electric nature, and the attraction between electrons of one atom to the nucleus of another atom contributes to what is known as chemical bonds.
i will give braniliest
During World War II, the Nazi government in Germany imprisoned and murdered millions of Jews. This is known as the _____.
A.Fascism
B.Holocaust
C.Nationalism
D.Great Depression
Answers
your welcome
Answer:
B
Explanation:
Consider X + Z -> ?
Assuming the following:
The product is an ionic compound.
Element X has 2 valence electrons
Elements Z has 6 valence electrons
Which general formula would be created?
A)ZX
B)Z^2x
C)XZ
D)X2^Z
Answers
Answer:
C
Explanation:
Element Z acquires two electrons from element X for stability
Can someone please help me with this???
Answers
Answer:
1)
Hg
80 protons, 80 electrons, 121 neutrons
2)
Mo
42 protons, 42 electrons, 54 neutrons
3)
Symbol is Cu, Mass is 64, 29 Protons
4)
C
Atomic number is 6, 6 protons, 6 electrons, 6 neutrons
5)
Symbol is P, 15 protons, 15 electrons, 16 neutrons
6)
Pb
Atomic number is 82, 82 electrons, 125 neutrons
7)
Na
Mass is 23, 11 protons, 11 electrons.
Hopefully this helps!
Based on table N of the reference tables what is the number of hours required for 42k (potassium -42) to undergo three half-life periods
Answers
The number of hours required : 37.2 hours
Further explanationGiven
⁴²K (potassium -42)
Required
The number of hours
Solution
The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.
Usually, radioactive elements have an unstable atomic nucleus.
Based on Table N(attached), the half-life for ⁴²K is 12.4 hours, which means half of a sample of ⁴²K will decay in 12.4 hours
For three half-life periods :
[tex]\tt 3\times 12.4=37.2~hours[/tex]
How much force is required to accelerate an 8-kg wagon at a rate of 15 m/s
Answers
Answer:
120 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 8 × 15
We have the final answer as
120 NHope this helps you
How is a doorbell an example of an electrical transformation
Answers
how does the octet rule predict the stability or reactivity of atoms.
Answers
Answer:
Explanation:
The octet rule allows chemists to predict the placement of electrons around the nucleus (electron orbitals), the identification of electrons added or lost during chemical reactions and the chemical reactivity of atoms based upon their particular electron configuration.
You are asked to get a compound that has a low melting point and cannot
conduct electricity, which would you pick if you saw three bottles labeled as Lici,
NaBr, and BrF. What type of bond did you get? *
Answers
Answer:
the third
Explanation:
How are a mole and a dozen similar?
Answers
Answer:
Each names a given number of objects.
Explanation:
Worth 50 points. Please answer correctly
Answers
Answer:
question 2 is false
Explanation:
6 is D
Are scientist improving the plant or corrupting it
Answers
Answer:
46 percent of trees have been cut down.
Scienctists helps plants, but humans do destroy a lot of plants.
Scientists - helps increase plant growth.
Woodchoppers - helps decrease plant growth.
how can one separate and collect the solvent from a salt solution
Answers
EXAMPLE: water can be separated from salt solution, because water has a much lower boiling point than salt. When the solution is heated, the water evaporates.
which equation is derived from the combined gas law?
Answers
Answer:
The correct answer is V1/T1=V2/T2.
Explanation:
Just took the test
Answer:
Its A on edge :)
Explanation:
Use the periodic table to identify the number of valence electrons available for bonding for each of the following elements.
Answers
Answer: Edgy, 2020
Explanation: <3
Answer:
refer to picture below :)
Explanation:
_AICI3–> _AI + _Cl2
I need help
Answers
Answer:
2AlCl₃ ⇒ 2Al + 3Cl₂
Explanation:
Balance the equation–making sure there's an equal amount of reactants and products on both sides.
Based on the reading, what can you infer about
aspirin's ester group?
It provides aspirin's pain-killing ability.
It makes the compound more digestible.
It reduces fevers.
Answers
Answer:
it makes the compound more digestable
Explanation:
Answer:
B.it makes the compound more digestible
Explanation:
edg 2020 just got it right
brainliest please?
Which of these chemical equations demonstrates the law of conservation of mass?
F. C3H8 + 4 O2 → 3 CO2 + 4 H2O
G. 2 H2 + O2 à 2 H2O
H. H + O à H2O
J. Mn(OH)2 + H3PO4 à 2Mn3(PO4)2 + 2H2O
Answers
Answer:h
Explanation:
Someone help with this ions and isotopes worksheet?
Answers
Isotopes are atoms of the same element that have different numbers of neutrons. Protons are positively-charged particles found in the nucleus of an atom.
Electrons are negatively-charged particles found in the outer shell of an atom. The charge on an element is determined by the number of protons and electrons present in the atom.
a.) Li+: number of protons = 3
Number of electrons = 2
charge of Li+ = +1
b.) Be2+: number of protons = 4
Number of electrons = 2
charge of Be2+ = 2+
c.) C4+: number of protons = 8
Number of electrons = 4
charge of C4+ = 4+
d.) O2-: number of protons = 8
Number of electrons = 10
charge of O2- = -2
e.) N3-: number of protons = 7
Number of electrons = 10
charge of N3- = -3
f.) C4- : number of protons = 4
Number of electrons = 4
charge of C4- = -4
g.) 14C6: The mass number = 14
Atomic number = 6
Number of neutrons = 8
h.) 18O8: The mass number = 18
Atomic number = 8
Number of neutrons = 10
i.) 19F9: The mass number = 19
Atomic number = 9
Number of neutrons = 10
j.) 40Ca20: The mass number =40
Atomic number = 20
Number of neutrons = 20
k.) 37Cl17: The mass number = 37
Atomic number = 17
Number of neutrons = 20
l.) 238U92: The mass number = 238
Atomic number = 92
Number of neutrons = 146
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elements have the same number of what when you move from the left of the periodic table to the right?
Answers
*
What part does uplift play in the rock cycle?
A. It pulls rocks deep into Earth.
B. It pushes rocks up towards Earth's surface.
C. It breaks rocks into sediment.
D.It decreases pressure on buried rocks.
Answers
Answer:
Sometimes forces act to pull sections of the Earth's crust apart. At other times they are forced together. All this movement can cause rocks that were once underground to be brought up to the Earth's surface. This process is called uplift.
Explanation:
Hope this helped you out have a good day
Can someone fill out the chart please?
Answers
Answer:
LOL i don't even know
Explanation: