Answer:
Explanation:
It would be positively charge
A(n) ___ is a compound that dissolves in water to produce hydrogen ions in solution. A(n) ___ produces hydroxide ions. Acids have a ___ taste and bases have a ____ taste. Both acids and bases conduct ____ and are ____. A pH of ____ is neutral. A pH of 6 is ___ and a pH of 14 is a __
Answer:
see explanation
Explanation:
Question
A(n) ACID is a compound that dissolves in water to produce hydrogen ions in solution. A(n) _BASE__ URhydroxide ions. Acids have a SOUR___ taste and bases have a BITTER____ taste. Both acids and bases conduct _ELECTRICITY___ and are _REACTIVE___. A pH of7 ____ is neutral. A pH of 6 is _ACIDIC__ and a pH of 14 is a BASIC__
PLEASE HELP 35 POINTSSS
Answer:
I think it's B or A. Though I believe it is more so B. I think I'm right though.
Explanation:
HELPPPPP ASAPPP PLZZZZ
Answer:
9
Explanation:
i think i dont know
maybe someone tell me if I'm wrong
roq-sbam-yiq come guys fast only g
Answer:
what is this?
Explanation:
write your question
1
2. How does a detergent remove a stain?
?
Answer:
By using various chemical compounds to lift the stain while being gentle enough to keep fabric intact.
fdsddddgdgdgdgsdggd.
If a planet's distance from the Sun is doubled, which of the following is true?
The orbital period increases.
The orbital period increases.
The eccentricity of its orbit increases.
The eccentricity of its orbit increases.
The average speed of the orbiting planet increases.
The average speed of the orbiting planet increases.
The gravitational force between the planet and the Sun increases.
Answer:
La fuerza gravitacional entre el planeta y el Sol aumenta.
Explanation:
how to calculate atomic mass of sodium ?(in process)
Answer:
Atomic mass of Sodium is 22.9897 u. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. The unit of measure for mass is the atomic mass unit (amu). One atomic mass unit is equal to 1.66 x 10 -24 grams.
Explanation:
Which of the following describes a chemical property of oxygen?
Oxygen is a gas at room temperature.
An oxygen molecule has an atomic mass of 32 a m u.
The density of oxygen is 0.00133 grams per centimeter cubed .
Oxygen reacts with iron to form rust.
Answer:
Oxygen Reacts with Iron to Form Rust is the Correct Answer
which physical quantity is not used when determining the stoichiometry in this experiment?
The physical quantity that is not used when determining the stoichiometry in this experiment is temperature.
Stoichiometry offers a way in which we can calculate the amount of reactants and products using mass - mole relationship. The mass of reactants, number of moles of reactant, mass of product and mass of precipitate can all be used to determine the stoichiometry.
However, the temperature of a reaction is not used to determine the stoichiometry of the reaction.
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Which physical quantity is NOT used when determining the stoichiometry in this experiment?
mass of precipitate mass of product moles of reactant temperatureNO LINKSSS PLEASE!!!
When a 1.0 gram of a salt is added to a beaker containing a solution of the salt, the salt crystals dissolve. It can be concluded that the original solution was...
Select one:
a. concentrated.
b. saturated.
c. supersaturated.
d. unsaturated.
b) unsaturated
Hope this helped you- have a good day bro cya)
any atom is most stable when it’s outermost energy level contains
Explanation:
Atoms are at their most stable when their outermost energy level is either empty of electrons or filled with electrons. Sodium atoms have 11 electrons. Two of these are in the lowest energy level, eight are in the second energy level and then one electron is in the third energy level.
Any atom is most stable when it’s outermost energy level contains eight electrons.
What is an atom?An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
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what is the chemical formula for the most common fragment of acetic acid?
Answer:
the scientific formula is C2H4O2
Explanation:
The cleavage of the compounds resulted in the fragments with varying stability. The most common fragment of acetic acid is [tex]\rm C_2H_4O_2^+[/tex].
What are the most common fragments?The common fragments in the molecular compound are the species that result in the neutral ions adn electrons with the cleavage of the bonds.
Acetic acid is a weak acid in nature, and is composed of the carbon, hydrogen and oxygen elements.
The cleavage of the species in the acetic acid spectrum resulted are, [tex]\rm [COOH^+],\;[CH_3CO^+],\;[CH_2CO^+],\;[HCO^+],\;[CO^+],\;[CH^3^+][/tex].
The species, with the highest m/z ration, has been the most common fragment of the acetic acid. The m/z ratio of the following species is given in the table attached.
From the table, the highest ratio for the stability has been found with [tex]\rm C_2H_4O_2^+[/tex]. Thus, the most common fragment of acetic acid is [tex]\rm C_2H_4O_2^+[/tex].
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Your future is affected by your choices today? I agree or disagree
Answer:
The choice that we had decided on doing today factors our future because whatever choice we decide on doing in the present day can impact how our life will play out in the future. ... After all, it is your life, so whatever you chose to do, you have the power to decide and create what you think would be best for you
Explanation:
in the reaction of aluminum metal and oxygen gas to make aluminum oxide, how many moles of aluminum will react with 0.80 grams o2?
Answer:
When 6.38 moles of O2 and 9.15 moles of Al react, the ratio of aluminum to oxygen is 9.15/6.38 = 1.434. This shows that all of the oxygen is consumed before the aluminum and when the reaction ends the reactant aluminum is left. The number of moles of Al2O3 formed is approximately 4.25 moles.
What is Force? I'll Mark BRAINLIEST
Answer:
A push or pull is referred to as a force. Forces can cause objects to move, slow, stop, or change the direction in which they travel. The force of gravity, for example, pulls all objects toward the Earth's center. Every time two things interact, a force is exerted on each of them. When this happens, the two items no longer feel the force after the interaction ends.
Explanation:
Force is that external physical cause which changes or tends to change:
the Direction of a moving body,the dimensions of a non-rigid body,state of rest or motion condition of a body.hope this helps you.
when did democritus contribute to the atomic theory
Answer:
Around 400 B.C.E., the Greek philosopher Democritus introduced the idea of the atom as the basic building block matter.
Explanation:
Hope this helps.
The electronic configuration of an element is given below.
Element 1: 1s22s22p4
Which statement about the reactivity of the element is true?
It is reactive because it has to gain an electron to have a full outermost energy level.
It is unreactive because it has to lose an electron to have a full outermost energy level.
It is reactive because it has to gain two electrons to have a full outermost energy level.
It is unreactive because it has to gain two electrons to have a full outermost energy level.
Answer:
It is reactive because it has to gain an electron to have a full outermost energy level.
Explanation:
Answer:
A
Explanation:
Ionization energy and electronegativity show similar trends in the periodic table. Describe these trends. What is the significance of the similarity of these trends?
Taking into account the definition of ionization energy and electronegativity, you can say that the significance of the similarity of these trends is that while electrons are more attracted to the nucleus (electronegativity), more energy is needed to extract an electron from a neutral atom (ionization energy).
Ionization energy
Electrons are held in atoms by their attraction to the nucleus, which means that energy is needed to remove an electron from the atom.
Ionization energy, also called ionization potential, is the necessary energy that must be supplied to a neutral, gaseous, ground-state atom to remove an electron from an atom. When an electron is removed from a neutral atom, a cation with a charge equal to +1 is formed.
The further away the electron is from the nucleus, the easier it is to remove it, that is, the less energy is needed.
In a group the atoms have the same electronic structure in the outermost shell. But when going down in the same group, the electrons find themselves in shells that are farther and farther away from the nucleus, being less and less attracted. The size of the atom increases as the number of electronic shells increases, increasing the atomic radius when descending in a group. But the electrons are farther from the nucleus, and the easier it will be to expel them. That is, its extraction from the atom is facilitated. So the ionization energy decreases when descending in a group. In other words, ionization energy is a function of atomic radius; the larger the radius, the less energy is required to remove the electron from the outermost orbital.
By increasing the atomic number of the elements of the same period, the nuclear attraction on the outermost electron increases, since the atomic radius decreases and the effective nuclear charge on it increases.
For this reason, in a period, as the atomic number increases, the ionization energy becomes greater.
ElectronegativityThe electronegativity of an element is defined as the relative ability of an atom to attract electrons from another atom to chemically bond and form a compound.
In other words, electronegativity is a measure of the attractive force that one atom exerts on the electrons of another when a chemical bond forms.
In the groups, the electronegativity decreases from top to bottom because the valence shell moves away from the nucleus and with this the attraction that the nucleus exerts on the valence electrons decreases.
In the periods, the electronegativity increases from left to right, because the number of electrons in the valence shell increases, so the attraction of other electrons increases to complete the valence shell and reach a stable state.
Similarityof the trendsThe significance of the similarity of these trends is that while electrons are more attracted to the nucleus (electronegativity), more energy is needed to extract an electron from a neutral atom (ionization energy).
Then, electronegativity is related to ionization energy in the following way: an atom with a high ionization potential has a high electronegativity. On the contrary, atoms with low ionization potential have small electronegativity.
Learn more about
electronegativity: brainly.com/question/14481608?referrer=searchResults brainly.com/question/21298480?referrer=searchResultsionization energy:brainly.com/question/16243729?referrer=searchResults brainly.com/question/11623163?referrer=searchResults brainly.com/question/1602374?referrer=searchResultsWrite the chemical formula for disilicon hexabromide.
Answer:
Br6Si2
Explanation:
The chemical formula for disilicon hexabromide is Si₂Br₆.
The chemical formula of a compound is a symbolic representation of its chemical composition.
Chemical formulae gives information about the elements that constitute the molecules of a compound and also about the ratio in which the atoms of these elements combine to form such molecules.
Every constituent component in a chemical formula is identified with its chemical symbol, along with the relative number of atoms that make up each element.
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Im doing a science project and need examples and non-examples of an Atom. some examples of an atom is neon, hydrogen, argon, etc so I got that part. But what are some non-examples of an atom and why?
Answer:
Anything not on the periodic table is an element non example! ... So, for a substance to be an element, all of its atoms must have the same number of protons. Examples of elements include hydrogen, lithium, nickel, and radium.
Explanation:
Non-examples of an atom refer to entities that are not considered atoms.
Molecules consist of two or more atoms chemically bonded together. They are not considered individual atoms because they contain multiple atoms connected by chemical bonds.
Ions are electrically charged particles formed when atoms gain or lose electrons. They can be positively charged (cations) or negatively charged (anions).
Subatomic particles are the constituents of atoms. They include protons, neutrons, and electrons.
Compounds are substances composed of two or more different elements chemically combined.
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Which option correctly describes the pattern of reactivity and electronegativity in nonmetals?(1 point)
Both reactivity and electronegativity decrease down a group.
Reactivity decreases down a group, and electronegativity increases down a group.
Both reactivity and electronegativity decrease up a group.
Reactivity increases down a group, and electronegativity decreases down a group.
Answer:A, Both reactivity and electronegativity decrease down a group.
Explanation: As you go down the periodic table they both will decrease
Someone pls help me I will make you brain
Answer:
I believe the answer is II and III
Explanation:
I'm not sure if III is right cause I cannot read the last word but I think it's OK.
Hope this helped :)
If 83.6 grams of H2 and 257 grams of N2 react, how many grams of ammonia will be produced?
The mass of ammonia that would be produced is 312.5 g
First, we will write a balanced chemical equation for the reaction
The balanced chemical equation for the reaction is
3H₂(g) + N₂(g) → 2NH₃(g)
This means
3 moles of hydrogen gas reacts with 1 mole of nitrogen gas to produce 2 moles of ammonia.
First, we will determine the number of moles of each reactant present
For Hydrogen (H₂)
Mass = 83.6 g
Molar mass = 2.016 g/mol
Using the formula
[tex]Number\ of\ moles = \frac{Mass}{Molar\ mass}[/tex]
Number of moles of H₂ present = [tex]\frac{83.6}{2.016}[/tex]
∴ Number of moles of H₂ present = 41.468254 moles
For Nitrogen (N₂)
Mass = 257 grams
Molar mass = 28.0134 g/mol
∴ Number of moles of N₂ present = [tex]\frac{257}{28.0134}[/tex]
Number of moles of N₂ present = 9.174181 moles
Since,
3 moles of hydrogen gas reacts with 1 mole of nitrogen gas to produce 2 moles of ammonia
Then,
27.522543 moles of hydrogen gas will react with the 9.174181 moles of nitrogen gas to produce 18.348362 moles of ammonia
∴ 18.348362 moles of ammonia will be produced during the reaction
Now, for the mass of ammonia that would be produced
From the formula
Mass = Number of moles × Molar mass
Molar mass of ammonia = 17.031 g/mol
Mass of ammonia that would be produced = 18.348362 × 17.031
Mass of ammonia that would be produced = 312.49095 g
Mass of ammonia that would be produced ≅ 312.5 g
Hence, the mass of ammonia that would be produced is 312.5 g
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write short notes on the following:1. Analytical chemist 2. Chemical engineer 3. Healthcare scientists 4. Forensic scientist 5. Research scientist 6. Toxicologists 7. Pharmaceutical chemist 8. Nuclear chemist 9. Industrial chemist.
how much does it cost to fill a 100lb propane tank
Answer:
$500
Explanation:
G00gle.
Which of the following is a liquid someone help!!!!!
which of the following controls all the activities which go on in the cell
Answer:
That would be the necleus! I hope this helps you! :)
what family is hydrogen in? explain
Explanation:
Hydrogen is a very special element of the periodic table and doesn't belong to any family. While hydrogen sits in Group I, it is NOT an alkali metal.
What volume of hydrogen gas forms if 10.0 g of Zn reacts at STP?
Answer:
0.690 liters is the volume of hydrogen gas produced if 2.00 grams of zinc is used with an excess of hydrochloric acid.
Explanation:
Zn(s)+2HCl(aq)\rightarrow ZnCl_2(aq)+H_2(g)Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)
Mole so zinc = \frac{2.00}{65 g/mol}=0.03077 mol65g/mol2.00=0.03077mol
According to reaction, 1 mole of zinc gives 1 mole of hydrogen gas.
Then 0.03077 mole of zinc will give :
\frac{1}{1}\times 0.03077 mol=0.03077 mol11×0.03077mol=0.03077mol of hydrogen gas
Pressure of hydrogen gas ,P= 1 atm
Temperature of of hydrogen gas ,T= 273.15 K
Volume of hydrogen gas = V = ?
Moles of hydrogen gas = 0.03077 mol
PV = nRT (Ideal gas equation )
V=\frac{nRT}{P}=\frac{0.03077 mol\times 0.0821 atm L/mol K\times 273.15 K}{1 atm}V=PnRT=1atm0.03077mol×0.0821atmL/molK×273.15K
V = 0.690 L