Answer:
b
Explanation:
Answer:
it is B hope I helped
=
Explanation:
what does our life have in common with the periodic table, What is the relationship between the world around us and the periodic table?
Answer:
Summary. To summarize, the periodic table is important because it is organized to provide a great deal of information about elements and how they relate to one another in one easy-to-use reference. The table can be used to predict the properties of elements, even those that have not yet been discovered.
Explanation:
How many oxygen atoms are in 163 g of aluminum sulfate? 
Answer:
3.44 × 10²⁴ atoms of oxygen
Explanation:
Step 1: Calculate the moles corresponding to 163 g of Al₂(SO₄)₃
The molar mass of Al₂(SO₄)₃ is 342.15 g/mol.
163 g × 1 mol/342.15 g = 0.476 mol
Step 2: Calculate the molecules in 0.476 moles of Al₂(SO₄)₃
We will use Avogadro's number: there are 6.02 × 10²³ molecules of Al₂(SO₄)₃ in 1 mole of Al₂(SO₄)₃.
0.476 mol × 6.02 × 10²³ molecules/1 mol = 2.87 × 10²³ molecules
Step 3: Calculate the atoms of O in 2.87 × 10²³ molecules of Al₂(SO₄)₃
According to the chemical equation, the molar ratio of Al₂(SO₄)₃ to O is 1:12. The atoms of O are 12/1 × 2.87 × 10²³ = 3.44 × 10²⁴.
List the 3 particles of an atom (w/their symbol & charge)
Proton p +1
Neutron n 0
Electron e- -1
mg(oh)2
How many H atoms are there?
How many Mg?
What is the total number of atoms?
(QUICK PLEASE!)
When you walk, your foot pushes down on the ground. What is the response of the ground?
Nothing?
It holds your foot?
It pushes with equal force on your foot?
It pushes with more force against your foot.
Answer:
It pushes back with equal force.
Explanation:
This is pretty much newton's first law.
8. __H2 + __O2-> __H2O
9. __K2SO4 + __H2-> __H2SO4 + __K
10. __NO2 + __H2O-> __HNO3 + __NO
What kind of mixture is a solution? Name the different constituents of a solution
Answer:
homogeneous mixture
Explanation:
two or more substances
a component that dissolves and a solvent
A student viewed the moon through binoculars one week after a new moon.Which image shows the phases of the moon that the students observed?
Answer:The answer is D
The image that shows the phase of the moon one ( 1 ) week after the new moon is ; ( Image G )
The quarter at which the moon will be one(1) week after the new moon is up in the sky is the first quarter. And at the first quarter the moon will be in its " waning gibbous " phase.
The waning gibbous phase is the stage in the new moon cycle where only one half ( 1/2 ) or 50% of the moon is lit and the moon will remain in this stage up until 21 days.
Hence we can conclude that the image that shows the phase of the moon one week after the new moon is Image G.
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s. What happens
the heat
from
the heat source?
What factors determine the amount of chemical energy an object has?
Answer:
The chemical energy in a substance is determined by the potential energy of the bonds of the products formed when it reacts
Explanation:
The term "alchemy" refers to early pseudoscientific attempts to transform common
elements into more valuable elements (such as lead into gold), For one kind of atom to
become another kind of atom, which particle(s) of the atom need to be expelled or gained?
Proton
Electron
Neutron
Quantum Particles
Answer: The correct answer is option B. electron.
Explanation:
There are 3 subatomic particles:
Electrons: They carry negative charge and are present in orbits around the nucleus of an atom.Protons: They carry positive charge and are present inside the nucleus of an atomNeutrons: They does not carry any charge and are present inside the nucleus of an atom.An atom forms an ion, when it looses or gains an electron.
When an atom looses electron, it form a positive ion known as cation.When an atom gains electron, it form a negative ion known as anion.Hence, the correct answer is option B. electron.
The particle(s) of the atom that is needed to be expelled or gained in an alchemy process which involves transformation of one element into valuable elements or atom to another is B:Electron.
Alchemy can be regarded as branch of philosophical and protoscientific tradition that is traceable to China, and Europe. In the process of transformation of one element to another useful element or compounds , there is usually transfer of electron.Electronegative element like chlorine usually gain electron and are anion, while electropositive elements like potassium will loose electron( cation) all involves the transfer of electron.
Therefore, option B is correct.
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How did Wegener use fossils as evidence that continents had moved?
Answer: Because the same Fossils were found on other continents.
Explanation:
The world used to be connected but then what I call the Continental Drift started and the world broke apart, along with the dinosaurs splitting in two or more packs.
Please select the word from the list that best fits the definition.
Science lab, bring water and sodium
a) term calendar
b) weekly schedule
c) daily organizer
Answer:
C. Daily Organizer. Also called an agenda. We usually write notes in them for school related things so the answer is pretty self explanatory.
hi can someone help me
Answer:
yolo go with C
Explanation:
WHICH COMPOUND HAS BONDS WITH THE LEAST DEGREE OF POLARITY (LEAST POLAR)?
Explanation:
H−S has least polarity in the bond because the electronegativity difference between H and S is the least.
1. Which term best describes ultraviolet radiation?
a. Harmless
b. Invisible
c. Undetectable d. Beneficial
Order the following atoms from smallest to largest atomic radius: C, N, P
Answer:
N, C, P
Explanation:
Predict the balanced insoluble product for the reaction of lead(III) nitrate with ammonium chloride. GIVE ME THE ANSWER NOT A LINK
Answer: [tex]Pb(NO_3)_2(aq)+2NH_4Cl(aq)\rightarrow PbCl_2(s)+2NH_4NO_3(aq)[/tex] .
The insoluble product is lead (II) chloride.
Explanation:
A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.
A double displacement reaction in which one of the product is formed as a solid is called as precipitation reaction.
The balanced chemical equation is:
[tex]Pb(NO_3)_2(aq)+2NH_4Cl(aq)\rightarrow PbCl_2(s)+2NH_4NO_3(aq)[/tex]
The insoluble product is lead (II) chloride.
A word equation is commonly used for describing a:
a. Property of a compound
b. Property of an element
c. Chemical reaction
the answer is B because I jus did that
In the name carbon dioxide what does the prefix of the second word indicate about a molecule of a dioxide A. It has two carbon atoms B. It has two oxygen atoms C. It is a polyatomic ion D. It Is an ionic bond
Answer:
The answer is option B, that is, it has two oxygen atoms.
Earth’s magnetic field is generated by a conducting fluid in its core. Explain why this is a theory.
Answer:
It's not a theory, The magnetic pull is from the core of the earth and pulls you down. example: I can jump and fall, Why? because of the core of the earth of me going p and then down. Why do you think that space doesn't have gravity? It's because it doesn't have a core, There are no planets that pull you down enough like earth.
PLZ HELP!
How does changing the angle of a ramp affect the force required?
Answer:
depending on how you change the angle on the ramp the kanetic energy can go up or down depending on how u angle the ramp
Explanation:
What is the chemical formula of water?
O N20
O H20
O NH3
O HO3
Answer:
H20
Explanation:
Answer: O H20
Explanation:
my cat just said HELL should i be concerned.
( i am dead serious not hello just HELL)
Answer:
Oh my. Just make sure that your cat isn't possessed by a demon or something. You never know if it's satan watching your back
Answer:
Explanation:
^^Shoyo hinata here!!!!!
welll that’s scary…!!! ♡(.◜ω◝.)♡
Awwwwwe I love cats when they talk! have u wached anime near your cat????? Maybe it’s possessed!!?!?!?
write the chemichal formulae of the following compounds.1) Ammonium chloride2) calcium hydroxide
Which material has been recycled for over 3,000 years?
Answer:
plastic
Explanation:
Question 10 (1 point)
What is the name for MnO?
manganese oxide
manganese (II) oxide
manganese (IV) oxide
manganese (VI) oxide
Answer:
D it is D
Explanation:
If 24 moles oxygen gas combined with 24 moles hydrogen gas, what would be the limiting reactant?
Which of the following is a layer of the solid Earth?
Answer:
The inner core is solid. But the mantle is solid/plastic
Explanation:
I completed the class Earth science
Answer:
The answer on study island in the LITHOSPHERE.
Explanation:
Where in the ATOM are the protons and neutrons found?
I
Answer:
in nucleus atom of proton and netwon found