Answer:
nitrogen because it has less number of protons and electrons, thus a samller atomic mass
Explanation:
Explanation:
Ne have smaller size because Ne have no negative charge compare to N, O and F which negative charge depends on size of an atom, Therefore more the negative charge , more will be the size of atom.Cl- have smaller size because as we go down the group, Size of the atom increase as Cl<Br<I irrespective to the atomic chargeI need help with this problems to know if they have reaction or no reaction.
1) Cr(s) +Co(NO3)2 (aq).
2) Ni(s) + Li2CO3(aq)
3) Co(s) + HCl(aq)
4) Cd(s) + H2SO4(aq)?
Answer:
i thank its 4)
Explanation:
becuse if they have reactino or no reatino will it 4) becuse i did this
How do the metals in group 1 compare with the transition metals? List at least 3 points.
How is the concentration of these gases
increasing?
in case you mean greenhouse gases they are increasing due to the result of human activities in relation to fossil fuels. the concentration of greenhouse gases also increases due to deforestation. the concentration increases as more is entering the atmosphere than it is being removed.
Why do airplanes have the cruising altitude in the stratosphere?
kích thước của nguyên tử gần nhất với
Answer:
The size of the atom closest to 30 to 300 pm
Explanation:
complete and balance the equation pb3o4+hcl
ur so ok.
Explanation:
i need points ok.
thanks
what is diffusion? Explain the energy that exists between particles....
Answer:
Diffusion :
the spreading of something more widely.
-AND-
Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth. Motion energy is energy stored in the movement of objects.
Explanation:
Hope this helps :)
Pls make brainliest :P
And have an amazing day <3
why the elements of groups 1 and 7 are mostly used in the form of compound
The answer is:
Because they have 1 more or less electron in there last orbit, so they are very active to form compounds which make them stable.
Hope this will help you❤️
what is the mass in grams of 0.250 mol of the common antacid calcium carbonate?
Answer:
Molar mass CaCO3 = 100 g/mol
Explanation:
So if we have 75 four or 5 g of the sample And there is 25.8 Percent calcium carbonate by mass. That's 25.8 g of calcium carbonate In 100 g of the sample. I'll do the most application at the end. Um And then if we know the grams of calcium carbonate, well, just reverse the conversion factor. Yeah, 100 g of the sample contains 25 0.8 grams of calcium carbonate. And when we do this, multiplication division, for part a 75.45 Times 25.8, divided by a 1000 Uh 23 significant figures is 1.9 five g of calcium carbonate. Mhm. And then for part B 18.8 times 100 Divided by 25.8 is 2. 3 significant figures 72 0.9 grams. Mhm of the sample. Yeah.
write a brief description explaining the term "luminous" to a classmate
Answer:
Plz mark as brainlist
luminous is relating to light as it is perceived by the eye, rather than in terms of its actual energy.
A brief description explaining the term "luminous" to generating or reflecting brilliant light, particularly at night: luminous attire. The bright glow of laptops illuminated the library.
What is luminous ?Luminous objects are things like the sun that produce or radiate light on their own. Others include a torch, an electric lamp, etc. Non-bright objects are those that don't emit any light of their own and can only be seen when light from a luminous source reflects off of them. Moon, a chair, a painting, etc. are a few examples.
Luminous objects are defined as those that produce their own light. Just the sun emits its own light; all other things only reflect light that is incident upon them.
The presence of luminous items produces the feeling of light. These things are visible because they independently emit light. As an illustration, consider the Sun, the stars, lightbulbs, torches, tube lights, candles, and so on.
Thus,the term "luminous" to generating or reflecting brilliant light, particularly at night: luminous attire. The bright glow of laptops illuminated the library.
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how do chemicals affect the enviornment? A. they work together with the enviornment B. they can both hurt and help the enviornment C. they only help the enviornment D. they only hurt the enviornment
Answer:
A. they work together with the environment.
Explanation:
Because work together is what keep the environments clean and tidy.
I'll be eternally grateful to whoever can help me!
Each of these Ionic Compounds are named INCORRECTLY.
1. Find and describe the mistake
2. Correctly name the compound.
CaCl2 - Calcium Chlorine
CuS - Copper Sulfide
Li3P - Trilithium Phosphide
CuBr - Copper(II) Bromide
NaOH - Sodium Hydrogen Oxide
Explanation:
The nomenclature of ionic compounds is given by:
1. Positive is written first. And if the metal atom has various oxidation states then its oxidation state is to be mentioned in brackets with help of roman numbers
2. The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.
1.) : Calcium chloride (Correct)
In the given compound, calcium has oxidation state of +2 and chlorine has oxidation state of -1.The name is correct.
2.) : Copper (II) oxide (Incorrect)
In the given compound,copper has the oxidation state of +1 and oxygen has oxidation state of -2.So ,the correct name will be Copper (I) oxide.
3.) : Lead (II) sulfide (Incorrect)
In the given compound, lead has the oxidation state of +4 and sulfur has oxidation state of -2. So ,the correct name will be Lead (IV) sulfide.
PLEASE HELPPPP Fastttt!
plz solve and send photo of anwer plz I need it fast
Cual es la fórmula del anhidrido fosfórico ?
P₂O₅
English-
the formula to phosphoric anhydride is P₂O₅
Spanish-
la fórmula del anhídrido fosfórico es P₂O₅
What is the Coriolis Effect?
Question 5 options:
the circulation route of trade winds moving from east to west
the way that tropical winds circulate to form hurricanes and large storms
the rapid movement of winds found in the upper atmosphere
the curved path of global winds due to the rotation of Earth on its axis
Answer:
The answer is D. Due to the rotation of earth being a cause is true.
Explanation:
Would a candle burning be a chemical or physical change? Why?
What neutral element has 17 electrons an 18 neutrons?
Answer:
chlorine atom
A chlorine atom has 17 protons, 18 neutrons, and 17 electrons.
Explanation:
Answer:
chlorine atom
Explanation:
A chlorine atom has 17 protons, 18 neutrons, and 17 electrons.
An orange tree is an example of a
because it contains seeds in fruit.
Answer:
the answer is flowering plant.
Explanation:
i hope it helps. later.
How long will it take for 25.0 g of Ra-226 to decay to leave a total of 1.56 g? Ra-226 has a half-life of 1600 years.
8000years
4800years
3200years
6400years
Answer:
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
Explanation:
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Can someone tell me the answers
Answer:
cadmium- Cd,
physical state= solid at room temperature
Manganese- Mn
physical state= solid at room temperature
Answer:
Cd
cadmium
112.41
transition metal
Mn
manganese
54.94
transition metal
Rn
radon
222.02
noble gas
20 ml of a solution of sucrose contains 850 mg of sucrose. What is the weight/volume percentage concentration of this solution in g/ml%
Explanation:
weight/volume percentage concentration = (mass in g ÷ volume) × 100
= (0.850 g ÷ 20 ml) × 100
= 4.25 g/ml %
∴ the weight/volume percentage concentration of the sucrose solution is 4.25 g/ml %.
PLZ HELP ASAP! Select 3 examples of pure substances Nitrogen gas, A cheeseburger, Ocean water, A glass of sweet tea, Oxygen
Answer:
nitrogen gas, oxygen, and ocean water
Hope it helps!
Explanation:
Answer: Nitrogen Gas, Oxygen, Ocean water
Explanation:.yes
describe atom in your own words
Answer:An atom is a particle of matter that uniquely defines a chemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. Each electron is negatively charged. The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.
Explanation:
Answer:
Hello, There! I'll be glad to help!
Questiondescribe atom in your own words
AnswerThe atom is the smallest unit of an element that retains the properties of that element.
Explanation:
At the center of the atom, there is a very small region called the nucleus. This area makes up most of the mass of the atom.The area around the nucleus is called the electron cloud. This area makes up the majority of the volume of the atom. The electron cloud is mostly empty space.
Therefore, I hope this helps!
During a science lesson on rocks and minerals, Mrs. Franks passed out a sample case of rocks, minerals, fossils, and gemstones. Looking at the samples, what are the three types of rocks found in the case? A) igneous, minerals, gemstones B) fossils, minerals, gemstones C) sedimentary, fossils, gemstones D) igneous, sedimentary, metamorphic
Answer:
wouldn't it be (D)
Explanation:
Igneous, Sedimentary & Metamorphic, because those are the type of rocks?
Answer:
D
Explanation:
If you have 460 grams of H2o, how many molecules are present?
A reaction of 17.0 g of ammonia with 26.6 g of chlorine gas
produces 3.50 g of nitrogen. What mass of ammonium chloride
is produced in the reaction?
Answer: if doing it on ck-12 the answer is 40.1
Explanation:
There are produced 40.1 grams of ammonium chloride (NH₄Cl) in the reaction between 17.0 g of ammonia (NH₃) and 26.6 g of chlorine gas (Cl₂).
The reaction between ammonia and chlorine gas is the following:
8NH₃ + 3Cl₂ → 6NH₄Cl + N₂
Initially, we have:
[tex]m_{NH_{3}}[/tex]: mass of ammonia = 17.0 g[tex]m_{Cl_{2}}[/tex]: mass of chlorine gas = 26.6 g[tex]m_{N_{2}}[/tex]: mass of nitrogen = 3.50 gAccording to the conservation of mass, matter cannot be created or destroyed, only can be transformed, so the mass of the reactants must be equal to the mass of the products.
The mass of ammonium chloride produced is:
[tex] m_{r} = m_{p} [/tex]
[tex] m_{NH_{3}} + m_{Cl_{2}} = m_{NH_{4}Cl} + m_{N_{2}} [/tex]
[tex] 17.0 g + 26.6 g = m_{NH_{4}Cl} + 3.50 g [/tex]
[tex] m_{NH_{4}Cl} = 17.0 g + 26.6 g - 3.50 g = 40.1 g [/tex]
Therefore, 40.1 grams of ammonium chloride are produced in the reaction.
Learn more here:
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What is the difference between variable and fixed costs?
Answer:
Variable costs are costs that change depending on the amount of the product you are providing. Fixed costs On the other hand are costs that are the same no matter how much of the product or service you are providing. Fixed costs are also called overhead or fixed operating costs.
_________________________________
[tex]\boxed {\sf Variable \:costs:-}[/tex]
The materials for making the bracelet are a variable cost, because the amount of materials you buy changes depending on how many bracelets you are making.
[tex]\boxed {\sf Fixed \:costs:-}[/tex]
If you pay rent for a warehouse each month, the amount you pay in rent is the same each month. It doesn't go up or down depending on how many sales you make.
[tex]\boxed {\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:}[/tex]
Which term best describes the relationship between mass and volume of a substance?
(3 Points)
Density
Solubility
Specific Heat
Melting Point
Answer: Density
Explanation:
Density = (mass)/(volume)
Define physical and chemical properties, provide three examples of each, discuss their reversibility, and
explain the fundamental differences between them.
Answer:
physical has a fundamental explanation and chemical properties has reversibility explanation with their three examples of discussion,reversibilitation and differences.
,