Answer:
The rule is especially applicable to carbon, nitrogen, oxygen, and the halogens, but also to metals such as sodium or magnesium. ... All four of these electrons are counted in both the carbon octet and the oxygen octet, so that both atoms are considered to obey the octet rule.
What mass of sodium hydroxide must be heated in order to produce 4.5 g of water?
Answer:
10 g
Explanation:
Directions: Record the number of each atom in each molecule, then record the total number of atoms in the molecule.
Total number of atoms = 5
Further explanationThe formula of a compound shows the composition of the constituent elements
CaCO₃ is composed of 3 types of atoms, namely Ca, C and O
The amounts of each of these atoms in the compound CaCO₃:
Ca = 1 C = 1 O = 3Then total number of atoms :
[tex]\tt 1+1+3=5[/tex]
which of the following is the conjugate acid of CIO-
The conjugate acid of CIO⁻ is HClO. Hence, Option (D) is correct.
What is Conjugate Acid - Base concept ?A conjugate acid, within the Brønsted–Lowry acid–base theory, is a chemical compound formed when an acid donates a proton to a base.
In other words, it is a base with a hydrogen ion added to it, as in the reverse reaction it loses a hydrogen ion.
Therefore, The conjugate acid of CIO⁻ is HClO. Hence, Option (D) is correct.
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How could you test your prototype to determine the effectiveness of your spin table? What data could you collect? How many trials would you run?
Answer:
Testing prototypes is an inherent part of finalizing designs. Nobody wants to wonder why users are not utilizing an app the way it should be utilized or why they can’t seem to complete a purchase on your website. And nobody wants to rework something that’s already been shipped.
Conducting tests as early as the prototyping stage can help you avoid these unfortunate scenarios. User research with Qualaroo can help you validate your current design and uncover new areas of focus for the next iteration. Use Qualaroo to understand how people use your interface early on in the design process and evolve your prototype into a working product faster.
moms home a hole
hope your happy about the poop youve done
what is the substance of air
Answer:
The air in the atmosphere consists of nitrogen, oxygen, which is the life-sustaining substance for animals and humans, carbon dioxide, water vapour and small amounts of other elements (argon, neon, etc.). Higher in the atmosphere air also contains ozone, helium and hydrogen.
Explanation:
:))
3. Which element has the ground state electronic configuration, 1s22s22p63s23p645' ?
phosphorus
calcium
potassium
bromine
Answer:
Explanation:simple 1s22s22p63s23p1
short form [Ne] 3s23p1
orbital energy diagram
The ground state electronic configuration, 1s22s22p63s23p645' is of potassium in the periodic table. Option C is correct.
What is a periodic table?A periodic table is an arrangement done by Mosley for better learning and understanding of the physical and chemical properties of an element and to know about the electronic configurations of the elements.
In potassium the arrangement of electrons in the shells of s, p, d, and f are 1s22s22p63s23p645' and these shells contain different energies and this is the stable electronic configuration that means at the ground state for the element.
Therefore, Option C is correct. The ground state electronic configuration, 1s22s22p63s23p645' is of potassium in the periodic table.
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What are the coefficients when the equation below is balanced?
Answer:
1, 2, 2, 1
Explanation:
This is basically the equation we're trying to balance:
Cu + AgNO₃ → Ag + Cu(NO₃)₂
We start with Copper (Cu): There is 1 atom on the reactants'(left) side and 1 atom on the products'(right) side which means it's balanced
The second is Silver (Ag): There is 1 atom on the reactants' side and 1 atom on the products' side which means it's balanced
The third is Nitrogen (N) and there is 1 atom on the reactants' side and 2 atoms on the products' side. We balance it by multiplying the reactants' side by 2
Cu + 2AgNO₃ → Ag + Cu(NO₃)₂
Silver is now imbalanced so we multiply the silver atoms on the product's side by 2
Cu + 2AgNO₃ → 2Ag + Cu(NO₃)₂
If you count them now, the atoms on each side are the same number
1 Copper atom on each side
2 Silver atoms on each side
2 Nitrogen atoms on each side
6 Oxygen atoms on each side (2 sets of 3 oxygen atoms)
1Cu + 2AgNO₃ → 2Ag + 1Cu(NO₃)₂
When light waves hit ice, most of them bounce off and radiate back into space. Because of this, ice is best described as which kind of surface? reflective absorbent dense rough
The bouncing back of light waves observed when light waves hit ice and most of them bounce off and radiate back into space is called reflection.
What are light waves?Light waves are a form of waves which produces visible sensitization of the eyes
Light waves have properties of waves such as:
reflection refraction diffractioninterference, etc.When light waves hit ice, most of them bounce off and radiate back into space.
This property of light waves is known as reflection.
Learn more about reflection of light waves at: https://brainly.com/question/1191238
When light waves hit ice, most of them bounce off and radiate back into space, hence, ice is best described as a reflective surface.
What is a Reflective surface?A reflective surface is one which can cause incident light to bounce back (reflection).
According to this question, when light waves hit ice, most of them bounce off and radiate back into space. This means that most of the incident light reflects off the ice surface.
Therefore, the ice surface is best described as a reflective surface.
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Please please please help!
Imagine you are a scientist who has just discovered a new element. The element has an atomic number of 113, and it has three elections in the outer energy level of each atom.
Which element would have properties most similar to the new element?
Group of answer choices
A. boron
B. carbon
C. hydrogen
D. beryllium
AND
What would you name this new element?
Answer:
A. is the correct answer because Boron has 3 electrons too,
All elements in Group 13 have three electrons in their outermost energy level. The two most popular elements in this group are Boron and Aluminum.
Adaptations can only arise if
there is _______ within a species.
Answer:
Diversity?
Explanation:
Think thats bio
What is differentiation
Answer:
The Definition of Differentiation
The derivative is the instantaneous rate of change of a function with respect to one of its variables. This is equivalent to finding the slope of the tangent line to the function at a point
Explanation:
who tryna date? like ong
Answer:
Im confused. Do you need help with something?
Explanation:
Answer:sheshhh sayless XD
Explanation:
Help me! I’ll give the brainliest! I just need a short-ish explaining and we outa here
How can you help save the environment from its total destruction?
Explanation:
Change the way you get around. ...
Be mindful of eating habits. ...
Grow your own food or buy it locally. ...
Embrace secondhand shopping. ...
Replace standard products with energy efficient versions. ...
Buy recycled products. ...
Spread the word. ...
Stop using plastic water bottles.
Answer:
hope it's help u
Explanation:
Stunning Ways to Save the Environment from Destruction
Change the way you get around. ...
Be mindful of eating habits. ...
Grow your own food or buy it locally. ...
Embrace secondhand shopping. ...
Replace standard products with energy efficient versions. ...
Buy recycled products. ...
Spread the word. ...
Stop using plastic water bottles.
A train travels 846 miles in 9 hours. What is the average speed of the train?
Answer:
The answer is 94 miles an hour.
Explanation:
Speed equals distance divided by the time taken to cover that distance. So to find the average speed of the train just divide the distance covered (846 miles) by the time taken by the train to cover that distance (9 hours) and that equals 846/9 equals 94 miles in one hour.
Select the best answer from the choices below. What causes resonance?
a. Destructive interference
b .Two nearby objects vibrating at the same frequency
c. A wave passing from one medium to another
d.Constructive interference
Answer:
The match between the vibrations of the air column and one of the natural frequencies of the singing rod causes resonance. So ITS A
Two nearby objects vibrating at the same frequency
Explanation:
what polyatomic ion could form a neutral compund with the manganese
Answer:
The polyatomic cation that will react with MnO₄⁻ to form a neutral compound is NH₄⁺ (ammonium ion) to form NH₄MnO₄ (Ammonium permanganate).
Simple chemistry question please help. Look at image.
It's the last one. They all have the same number of electrons in their outer ring. They're also called valence electrons.
Hope this helped!
Genetic Material Is known as...........
Answer:
Definition of Genetic Material
Well, your genetic material known as deoxyribonucleic acid (DNA) is the reason. DNA is the hereditary material found in the nucleus of eukaryotic cells (animal and plant) and the cytoplasm of prokaryotic cells (bacteria) that determines the composition of the organism.
name the compound TiBr3
Answer:
Titanium (III) bromide
Explanation:
As it is an ionic compound we write the valency for transition elements, and that means here that titanium loses three electrons to become +3 (Ti
The name of the compound is titanium (III) bromide as it has titanium in +3 oxidation state.
What is compound?
Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.
Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:
1)Molecular compounds where in atoms are joined by covalent bonds.
2) ionic compounds where atoms are joined by ionic bond.
3)Inter-metallic compounds where atoms are held by metallic bonds
4) co-ordination complexes where atoms are held by co-ordinate bonds.
They have a unique chemical structure held together by chemical bonds Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.
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what is this equation? How do you use it in physical science waves
Answer:
hmm
Explanation:
let me think
Answer:
speed of sound, frequency and wavelength
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Question 5
Coastal flooding occurs when_
A. Rocks or debris block rivers causing them to overflow
B. Severe weather occurs causing large waves to hit the coast
C. Huge amounts of snow and ice melt due to sudden temperature variations
D. Colossal amounts of rain fall in a short period of time
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a graduated cylinder begins with a volume of 30.0ml. If a rock is added to the graduated cylinder, the water level rises to 75ml. The mass of the rock is 55.0g. What is the density of the rock?
Initial volume of graduated cylinder = 30.0 mL
Final volume of graduated cylinder after adding rock = 75.0 mL
Volume of the rock = Final volume of graduated cylinder after adding rock - Initial volume of graduated cylinder
= (75.0 - 30.0) mL
= 45.0 mL
Mass of the rock = 55.0 g
[tex] \rm Density = \dfrac{Mass}{Volume} \\ \\ \rm = \dfrac{55}{45} \\ \\ \rm = 1.23 \: g/mL[/tex]
[tex] \therefore [/tex] Density of the rock = 1.23 g/mL
you find 13406190 pennies. how many dollars did you actcually find? if each penny weighs 4 grams, how much does all of it weigh in ponds
Answer:
134,061.9 dollars and 118,222.45 lbs.
Explanation: you're welcome :)
what happens to neutral sodium atoms when it reacts with the fluorine atom?
Answer:
losses a single valence electron to the fluorine atom, which has just enough space to accept it.
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Which of the following mixtures will show Tyndall effect?
Starch in water, Tincture of iodine, air, fog, sodium chloride in water.
Answer:
Explanation:
Milk and starch solution are example of colloidal solution and we know that Tyndall effect is shown by colloids.
The absorption spectrum of a molecular compound in the microwave radiation range provides information about the: 1.Electronic structure of the molecule 2. Bonds and bond energies of the molecule 3. Shape of the molecule
Answer: 2. Bonds and bond energies of the molecule
Explanation:
The absorption spectrum is an electromagnetic spectrum which is used for observing the intensity of the radiations which have been absorbed by the substances shown by the pattern of dark lines or bands. Infrared and microwave spectroscopy are specialized techniques which are used for observing the bonds and bond energy of the molecules which can be observed by measuring the frequencies at which the radiations are absorbed.
A standard room temperature and pressure, most of the elements on the periodic table are
explain your answer
Answer:
Solids
Explanation:
At standard room temperature and pressure, most of the elements are solids.
Just a few of the elements are liquids and gases at this temperature.
The periodic table is made up of metals, metalloids and non-metals. Most of these substances are actually solid.
Some non-metals are gaseous at standard room temperature.
