PLS HELP ME PLS I'LL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST OR HAS THE BEST ANSWER
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Related Questions
why do the Noble gases have the highest ionization energies across a period?
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Answer:
ionization energy decreases from top to bottom in groups, and increases from left to right across a period. So technically, the noble games have the largest ionization energy.
Explanation:
Which type of bond is salt? a. covalent b. valence c. metallic d. ionic
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Answer:
D. Ionic
Explanation:
It has ionic bonding! Good luck ^^
Isopentyl acetate is the molecule largely responsible for the aroma and taste of bananas. It is made up of carbon, hydrogen, and oxygen. Combustion of a 3.256-g sample of isopentyl acetate produces 7.706 g CO2 and 3.156 g H2O. Using these results, what is the correct empirical formula for isopentyl acetate?
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Answer:
Explanation:
7.706 g of CO₂ will contain 12 x 7.706 / 44 g of C
= 2.1 g of C .
This will be contained in 3.256 g of isopentyl acetate
3.156 g of H₂O will contain 2 x 3.156 / 18 g of H
= .351 g of H
This will be contained in 3.256 g of isopentyl acetate
Rest will be oxygen
amount of oxygen in 3.256 g of isopentyl acetate
= 3.256 - ( 2.1 + .351 )
= .805 g
ratio of C , H , O in isopentyl acetate
= 2.1 g : .351 g : .805 g
2.1 / 12 : .351 / 1 : 0.805 / 16 ratio of moles
= .175 : .351 : .05 ratio of moles
= 3.5 : 7.02: 1
= 7 : 14 : 2
empirical formula of isopentyl acetate
= C₇ H₁₄ O₂ .
Tendency of an object to float
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Answer:
Buoyancy is the ability or tendency of an object to float in a fluid: a liquid or a gas. This happens because fluid pressure increases with depth. According to Archimedes' Principle, the buoyant force on a submerged object is equal to the weight of the liquid displaced by the object.
Explanation:
carbon + oxygen -->
carbon dioxide
balancing equation
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Carbon = C
Oxygen = O
CO2 = Carbondioxide
Balanced equation :
C + O2 = CO2
Answer:
co2
Explanation:
c+o2-------------> co2
If a net force of 4 N caused a football to accelerate 8 m/s2 across a football field, what was the mass of the football?
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Answer:
Mass is .5kg
Explanation:
F=ma, plug in your numbers:
F=4N
A=8m/s^2
4=m8
m=4/8
8.
Blank is the transfer of energy by electromagnetic waves.
Your answer
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What is the charge of this atom?
65 protons
60 electrons
A)-5
B)+5
C)0
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Answer:
B. +5
Explanation:
Which of the following is not a controllable risk factor?
a. smoking
b. inactivity
c. aging
d. over eating
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Answer:
C) Aging
Explanation:
You can't stop that or change the rate that you age at. its inevetable :D
Why can gases be compressed easier than liquids and solids?
F.
Gases have smaller atomic nuclei than solids and liquids.
G.
Solid materials go through chemical changes when they are compressed.
H.
The electron clouds in atoms of solids and liquids are much larger.
J. The space between gas molecules is bigger than solid and liquid molecules.
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Answer:
J
Explanation:
scientists studying squirrels in a forest observed that the squirrel population decrease over a period of five years. which statement is the most likely explanation for the decrease in the population?
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Answer:
1.An increment of predators
2.unavailability of food resources due to change in climate causing famine
3.Spread of diseases over time that might kill the squirrels
4.An increment of squirrels which caused high competition on food,thus some of them had to migrate
5.Might be fire break out over some time that caused death to some squirrels in the reasoning of the period of time
What is true about atoms when they bond? There may be more than one answer.
1. Bonded atoms can never be taken apart
2. Electrons can be transferred
3. They form compounds
4. Compounds have the same characteristics are the atoms that make it up
5. Electrons can be shared
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Answer:
3. 5. and i think thats it
Answer:
3. 5. and i know it is right
Explanation:
what is the formula for dihydrogen tetraoxide
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It's been a while... but I'm pretty sure it's
H₂O₄
who know how to do this thank you
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Number of neutrons :
Argon=22
Boron=6
Further explanationThere are two components that accompany an element, the mass number and atomic number
Atoms are composed of 3 types of basic particles (subatomic particles): protons, electrons, and neutrons
The Atomic Number (Z) indicates the number of protons and electrons in an atom of an element.
Atomic number = number of protons = number of electrons ⇒ neutral number
Atomic mass is the sum of protons and neutrons
Atomic Number (Z) = Atomic mass (A) - Number of Neutrons
Argon has an atomic number of 18 and a mass number of 39,948
number of neutrons =
[tex]\tt 39.948-18=21,948\approx 22[/tex]
Boron has an atomic number of 5 and a mass number of 10,811
number of neutrons =
[tex]\tt 10.811-5=5.811\approx 6[/tex]
what information can you figure out about an atom using only the atomic number?
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Write the general formula of an alkane and use this to predict the 97th member
of the alkane series.
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Explanation:
The general formula of an alkane is given as;
CₙH₂ₙ₊₂
n is the number of the member;
For the 97th member in the series;
n = 97;
2n + 2 = 2(97) + 2 = 196
So, the 97th member is;
C₉₇H₁₉₆
This is how to apply the formula of alkanes which are saturated hydrocarbons to find any member of the series.
10. A(n) eclipse occurs at a full moon when Earth is directly between the moon and the sun.
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Answer:
Yes indeed
Explanation:
In photosynthesis, what are the polar molecules?
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Answer:
in photosynthesis polar molecules are molecules that have a diffrent arangment in molecules for example polar water molecule is when oxegen is on one end and the hydrogen is on the other. olmost any compound can have a polar or non polar molecule.
Explanation:
24H2S + 16HNO3 3Sg+ 16NO + 32H2O
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Answer:
24 sultur with 48hydrogen+16 hydrogen,nitrogen and 48 oxygen+16 nitrogen,16 oxygen+62hydrogen and 32 oxygen
Explanation:
Could cellular respiration
happen without photosynthesis? Explain your
reasoning
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Answer:
No
Explanation:
Without photosynthesis, there would be no sugar, without which there could be no cellular respiration.Both animal cells and plant cells depend on cellular respiration for their energy needs, because both animal cells and plant cells need ATP.
Suppose that green spheres represent chlorine atoms, yellow-green spheres represent fluorine atoms, white spheres represent hydrogen atoms, and all the molecules are gases
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Answer:
a. Reactants: F₂ and HCl molecules
Products: Cl₂ and HF
b. 4HCl + 2F₂ ----> 4HF + 2Cl₂
c. Single replacement reaction
Note: The question is not complete. The complete question is found below as well as in the attachment.
Suppose that green spheres represent chlorine atoms, yellow-green spheres represent fluorine atoms, white spheres represent hydrogen atoms, and all the molecules are gases:
a. write a formula for each of the reactants
b. write a balanced equation for the reaction
c. indicate the type of reaction as combination,decomposition, single replacement, double replacement, or combustion
Explanation:
a. From the models shown in the diagram, The reactants are F₂, HCl while the products are Cl₂ and HF respectively
b. Equation for the reaction is given below;
4HCl + 2F₂ ----> 4HF + 2Cl₂
c. The reaction is single replacement reaction such that fluorine gas molecules replace the chlorine atoms in hydrogen chloride to form hydrogen fluoride with the liberation of chlorine atoms as gaseous molecules.
what are green boxes on periodic tables
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Answer:
The basic metal ones?
Explanation:
...
The density of water is 1.00 g/mL. Which substance below can float on water?
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Answer:
ice, air, ducks and fabric
Explanation:
its common sense
What is the specific heat of a substance that absorbs 1000 joules of heat when a sample of 25 g of the substance increases in temperature from 10.0C to 60.0C
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Answer:
1250000
Explanation:
Specific heat is mass times specific heat capacity times change in temperature to get chance in temperature minus the old temperature from the new temperature then complete equation hence 25g×1000j×(60-10)
25g×1000j×50
=1250000g/j/degree Celsius
A year has 365 days, and a day has 24 hours. If an hour has 60 minutes and a minute has 60 seconds, how many seconds are there in 1 year?
54,750 s
525,600 s
3.15 Times. 107 s
1.89 Times. 109 s
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Answer:
31,536,000 seconds
Explanation:
off google
Answer:
3.15 x 10^7s
Explanation:
Meiosis occurs in
embryo cells
plant cells
reproductive cells
animal cell
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Answer:
Meiosis is a type of cell division - like mitosis, but it results in four haploid cells with one-half the number of chromosomes as the original diploid cell. Meiosis occurs in plants only during sexual reproduction in specialized cells to produce a haploid egg cell.
Answer:
reproductive cells!
Explanation:
source: oddesyware:"So,how are egg and sperm cells created? The process of cell division in REPRODUCTIVE CELLS IS CALLED MEIOSIS." Hope this helps!
What is the difference between a hyrdrogen atom and a hydrogen molecule?
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Answer:smaller
Explanation:
Answer:
Explanation:
A hydrogen atom (H) is bonded to form hydrogen gas(H2)(a molecule)
Which family of elements has six electrons in d-type orbitals?
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Answer: Selenium is a member of the sulfur family with elements including tellurium and polonium. This family has six electrons in the outermost shell. Selenium specifically has an electron configuration of 2-8-18-6. The six electrons in the outermost shell allow selenium to have a variety of valence numbers.
Explanation:
I have the coldest temperature of the atmosphere. Who am I?
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Answer:
Jack Frost of course!!!!!!!
1 Select the correct answer! Which statement best explains the octet rule? A. Atoms gain, lose, or share electrons to achieve a full valence shell. D B. Compounds always consist of eight electrons. oa. |||||Molecules always consist of eight atoms. OD. All atoms require eight electrons to form bonds. Reset Next Entum. All rights reserved.
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Answer:
A. Atoms gain, lose, or share electrons to achieve a full valence shell
Explanation:
The octet rule is best explained as the process in which atoms lose or gain or share electrons to achieve a full valence shell.
In this process bonds are formed when there is an attraction between the two substances. For electrovalent compounds, an atom will lose electrons or gain electron to form an ion, the electrostatic attraction causes the bond formation. Covalent compounds, form by sharing of electrons.Therefore, the octet rule is attained when atoms gain full valence configuration.
