Explanation:
its the vaporizer that air brun
how many electrons can the fourth energy level can accommodate? a.2 b.8 c.16 d.32
Answer:
8
Explanation:
Iron combines with 5 g of Copper (1) Nitrate to form 6.01 g of Iron (1) Nitrate and 0.4 g of copper
metal. How much Iron was required to complete this reaction?
What is the relationship between extinction and biodiversity ?? PLEASE ANSWER!!!!!!!
Answer:
The biodiversity of an area is literally the number of species, both plant and animal, inhabiting the environment being examined. When a species is no longer found in a region, it is locally extinct.
Explanation:
if there is 4 protons, 2 electrons, 5 neutrons what is the iconic charge and what element is this ?
Answer:
Be^2+
Explanation:
The atomic number indicates the number of protons so the element is Be (beryllium)
So now we know that a neutral atom contains four electrons but there are 2 so that means two electrons were taken away, making it positive. It would be a 2+ charge.
Which of the following is the main function of the Circulatory System?
A: Helps the body move
B: The transport oxygen and nutrients around your body and help to get rid of wastes
C: Breaks down food into molecules the body can use.
D: Directs the way your body responds.
Answer:
B: The transport oxygen and nutrients around your body and help to get rid of wastes
Explanation:
The circulatory system carries oxygen and nutrients to the body, but it can also help get rid of waste (though that isn't a huge function of it).
The products of a neutralization reaction are an acid and a base. (i need to rewrite the statement and make it true.)
Explanation:
neutralization reaction can be defined as a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products. In a neutralization reaction, there is a combination of H+ ions and OH– ions which form water.
In chemistry, neutralization or neutralisation is a chemical reaction in which acid and a base react quantitatively with each other. In a reaction in water, neutralization results in there being no excess of hydrogen or hydroxide ions present in the solution.
Explain why hydrocarbons are present in so many different compounds.
Answer:
Many hydrocarbons are found in plants, animals, and their fossils; other hydrocarbons have been prepared in the laboratory. We use hydrocarbons every day, mainly as fuels, such as natural gas, acetylene, propane, butane, and the principal components of gasoline, diesel fuel, and heating oil.
How many grams are in 0.75 moles of SO2
48 g SO₂
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableStoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
0.75 mol SO₂
Step 2: Identify Conversions
[PT] Molar Mass of S - 32.07 g/mol
[PT] Molar Mass of O - 16.00 g/mol
Molar Mass of SO₂ - 32.07 + 2(16.00) = 64.07 g/mol
Step 3: Convert
Set up: [tex]\displaystyle 0.75 \ mol \ SO_2(\frac{64.07 \ g \ SO_2}{1 \ mol \ SO_2})[/tex]Multiply/Divide: [tex]\displaystyle 48.0525 \ g \ SO_2[/tex]Step 4: Check
Follow sig fig rules and round. We are given 2 sig figs.
48.0525 g SO₂ ≈ 48 g SO₂
Balance this equation Ga2O3 +MgF2->GaF3 + Mg0
Answer:
2Ga2O3 +3MgF2->2GaF3 + 3Mg0
i think
Explanation:
When two additional electrons are required to follow the octet rule a ____________ bond is created
Answer
o double covalent bond is cteated.
Which substance contains particles held together by metallic bonds? A) N2(s) B) Ni(s) C) I2(s) D) Ne(s)
Answer:
B) Ni(s)
Explanation:
The question inquires which of the substances listed in the options is composed of the metallic bond. This means that we have to carefully consider the options and identify which of them is a metal. Clearly, only Ni(s) is a metal.
Metallic bonds result from the electrostatic attraction between metal cations and delocalized electrons. The nature of metallic bonding accounts for many of the physical properties of metals, such as conductivity and malleability(Khan Academy).
1. How many moles of hydrogen, H2, are needed to react with 2.6 moles of
nitrogen, N2?
N2-3H2
-
2NH2
Answer:
7.8
ratio is 3 H2 to 1 of N2
so multiply 2.6 by 3
Explanation:
What is the correct empirical formula for C18H306?
How many grams of sodium nitrate are needed to prepare a 0.965 M sodium nitrate solution that contains 1,640 g of water?
Answer:
134.5 g
Explanation:
Let us recall that 1g of water = 1cm3 of water
Hence;
1,640 g of water = 1,640 cm3 of water or 1.64 L
This is now the volume of the solution
Now;
m/M = CV
m = mass of the solute
M = molar mass of the solute
C = concentration of the solution
V = volume of the solution
m/84.9947 g/mol = 0.965 M * 1.64 L
m = 0.965 M * 1.64 L * 84.9947 g/mol
m = 134.5 g
Mary and her siblings share similar hair color. Which of these cell components are most involved in determining the hair color of each sibling?
The question is incomplete, the complete question is;
1. Mary and her siblings share similar hair color. Which of these cell components are most involved in determining the hair color of each sibling?
Gene, Chromosome, Nucleus
Cytoplasm, Chloroplasts,Genes
Vacuoles, Nucleus, Chromosomes
Chromosomes, Chloroplasts, Vacuoles
Answer:
Gene, Chromosome, Nucleus
Explanation:
Gene is defined in biology as "a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring" (Oxford Dictionary).
The gene is located in the chromosomes in the nucleus of cells. The sum total of the genes that an organism inherits from its parents is called the organisms' genotype and determines certain features of the organism.
The hair colour of Mary and each of her siblings depends on the genes they received from their parents.
My greatest influence on career pathing right now is___________
and it leads me to consider________as my possible SHS
Track and strand choice
Answer:
My greatest influence on career pathing right now is minecraft hardcore.Track and strand choice.
what is an acid containg oxygen?
Explanation:
An oxyacid, oxoacid, or ternary acid is an acid that contains oxygen. Specifically, it is a compound that contains hydrogen, oxygen, and at least one other element, with at least one hydrogen atom bonded to oxygen that can dissociate to produce the H+ cation and the anion of the acid.
Answer:
oxyacid, oxoacid
Explanation:
An oxyacid, oxoacid, or ternary acid is an acid that contains oxygen. Specifically, it is a compound that contains hydrogen, oxygen, and at least one other element, with at least one hydrogen atom bonded to oxygen that can dissociate to produce the H+ cation and the anion of the acid.
(due tonight pls help)
In science, does acceleration happen when an object is slowing down?
(PLS make this answer simple to understand)
Answer:
I think the answer is yes and here is my explanation.
Explanation:
According to our principle, when an object is slowing down, the acceleration is in the opposite direction as the velocity. Thus, the object has a negative acceleration.
How many moles are in a 4.5g of Sulfur?
Answer:
~0.14
Explanation:
There are roughly ~0.14 moles in 4.5g of Sulfur. 1 mol = 32.06 g of Sulfur, so we just find the ratio and then multiply.
Answer:
[tex]\boxed {\boxed {\sf About \ 0.14 \ mol \ S }}[/tex]
Explanation:
To convert from grams to moles we must use the molar mass. This can be found on the Periodic Table.
Sulfur (S); 32.07 g/molWe can use this number as a ratio or fraction.
[tex]\frac{ 32.07 \ g \ S }{1 \ mol \ S }[/tex]
Multiply by the given number of grams: 4.5
[tex]4.5 \ g \ S *\frac{ 32.07 \ g \ S }{1 \ mol \ S }[/tex]
Flip the fraction so the grams of sulfur cancel.
[tex]4.5 \ g \ S *\frac{1 \ mol \ S }{32.07 \ g \ S}[/tex]
[tex]4.5 *\frac{1 \ mol \ S }{32.07 }[/tex]
[tex]\frac{4.5 \ mol \ S }{32.07 }[/tex]
[tex]0.140318054 \ mol \ S[/tex]
The original measurement of grams had 2 significant figures, so our answer must have the same. For the number we calculated, that is the hundredth place.
The 0 in the thousandth place tells us to leave the 4.
[tex]0.14 \ mol \ S[/tex]
There is about 0.14 moles of sulfur in 4.5 grams.
If an ionic compound formed between an element from the first column of the periodic table and another from the sixteenth column, you would expect the compound to include W 0 A two atoms of the element from the first column and one atom of the element from the sixteenth column. O B. one atom of the element in the first column and two atoms of the element from the sixteenth column. O C three atoms of the element from the first column and two atoms of the element from the sixteenth column. OD one atom from each of the two different elements.
Answer:
A. two atoms of the element from the first column and one atom of the element from the sixteenth column.
Explanation:
If an ionic compound formed between an element from the first column of the periodic table and another from the sixteenth column, you would expect the compound to include two atoms of the element from the first column and one atom of the element from the sixteenth column.
The periodic table is arranged in rows and columns. The rows are periods while the columns are groups.
The first column of the periodic table contains elements that form univalent ions hence they have a valency of 1. The elements in the sixteenth column usually form divalent negative ions and have a valency of 2.
An example of an element of the first column is sodium while an example of an element of the sixteenth column is sulphur.
During ionic bond formation, there is an exchange of valency such that the formula of a compound formed between sodium and sulphur is Na2S.
Therefore, when an ionic compound formed between an element from the first column of the periodic table and another from the sixteenth column, you would expect the compound to include two atoms of the element from the first column and one atom of the element from the sixteenth column.
Learn more: https://brainly.com/question/13178080
How many moles of CuO are needed to react with 5.9 moles of CO2
Answer:
If 5.9 moles of CO₂ react, 5.9 moles of CuO will also react.
Explanation:
The balanced reaction is:
CuO + CO₂ → CuCO₃
By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:
CuO: 1 moleCO₂: 1 moleCuCO₃: 1 moleYou can see that the stoichiometric relationship between CuO and CO₂ is 1: 1. In other words, for each mole of CuO that reacts, one mole of CO₂ will also react.
So if 5.9 moles of CO₂ react, 5.9 moles of CuO will also react.
Uzupełnij zapis powstawania jonu z atomu. Podaj liczby protonów i elektronów wjonie.( ... / 2 p.)a) S ................. → S2–b) K ..................... → K+ liczba protonów: ........... Liczba protonów: ........... Liczba elektronów: .......... Liczba elektronów: ..........
Answer:
Only when a podaj is connected with equal terms with a wjonie.( .. / 2 p.a)a) S
Explanation:
hope this helps :)
nitrogen and chlorine is less polar than a nitrogen oxygen bond
true or false
Answer:
Nitrogen and chlorine have similar electronegativities, making individual N-Cl bond essentially non-polar. therefore its true
Explanation:
When kci dissolved in ethanol what is the intermolecular attraction between k+ ions and ethanol molecules
Answer:
ion-dipole interaction
Explanation:
Ethanol is a polar molecule due to the presence of the polar O-H group in the molecule. This means that the molecule has a dipole moment.
The positive end of the dipole lies on hydrogen while the negative end of the dipole lies on oxygen.
When KCl is dissolved in ethanol, K^+ ions can interact with the negative end of the dipole in ethanol by ion-dipole interaction.
Examine the statement.
If a scientist observes ice cream melting into a creamy puddle, the scientist is
observing a physical change.
Determine whether the statement is true or false. If false, explain why it is false,
What is the molecular formula for C5H7 if its molar mass is 536 g/mol?
Answer:
(C5H7)8
Explanation:
It's empirical formula is given as; C5H7
Molar mass of carbon(C) = 12 g/mol
Molar mass of hydrogen(H) = 1 g/mol
We are told that it's molar mass is 536 g/mol.
To find the molecular formula;
Molecular formula = n × empirical formula
Thus;
n = 536/((12 × 5) + (1 × 7))
n = 8
Thus;
Molecular formula = (C5H7)8
How many grams is 6.31 x 1024 molecules of BF3 in scientific notation?
Answer:
6,461.44 sana po makatulong
how many molecules are in SO4
Answer:
there are 5 molecules in SO⁴
What two physical properties depend on the sample size of a substance? Give examples for
each.
Answer:
Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present.
Can someone help me ?
Explanation:
11. The correct option is B. The range for polar covalent bond is; 0.3 - 1.4
12. C. This is because there is uneven distribution of the charge. Unlike in the other options which are molecules of the same atoms with equal electronegativity.
13. A. Resonance structures is the correct option. It describes electrons in certain molecules or polyatomic ions where the bonding cannot be expressed by a single Lewis formula.
14. A. Lower electronegativity values means the electrons are more likely to be shared than transferred (gain/lost).
15. D. H2O is more polar than H2S because of the electronegativity of oxygen. H2O also has hydrogen bonds.
16. C. Due to the geometry of the other molecules, the polarity are cancelled.So they have a net polarity of zero.