Answer:
0.0554 moles of NaCl are produced from the reaction of 1.67*10²² molecules of Na₂CO₃ with excess HCl.
Explanation:
The balanced reaction is:
Na₂CO₃ + 2 HCl → 2 NaCl + CO₂ + H₂O
By reaction stoichiometry (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:
Na₂CO₃: 1 mole HCl: 2 moles NaCl: 2 moles CO₂: 1 mole H₂O: 1 moleOn the other hand, Avogadro's Number is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number applies to any substance.
In this case, you can apply the following rule of three: if 6.023*10²³ molecules of Na₂CO₃ are contained in 1 mole, 1.67*10²² molecules will be contained in how many moles?
[tex]amount of moles=\frac{1.67*10^{22}molecules*1mole }{6.023*10^{23}molecules}[/tex]
amount of moles= 0.0277 moles
In this case, you can apply the following rule of three: if by stoichiometry 1 mole of Na₂CO₃ produces 2 moles of NaCl, 0.0277 moles of Na₂CO₃ will produce how many moles of NaCl?
[tex]amount of moles of NaCl=\frac{0.0277 moles of Na_{2} CO_{3}*2 moles of NaCl }{1 mole of Na_{2} CO_{3}}[/tex]
amount of moles of NaCl= 0.0554 moles
0.0554 moles of NaCl are produced from the reaction of 1.67*10²² molecules of Na₂CO₃ with excess HCl.
What is a characteristic of asexual reproduction?
Answer:
Sexual reproduction
what would Sodium+oxygen -> sodium oxide look like in chemical formula?
4 Na + O2 → 2 Na2O
I think that's it
Thread-like structures that are found in the nucleus of a cell that contains all DNA.
A.) DNA
B.) Genes
C.) Chromosomes
D.) Nucleus
For the balanced equation shown below, how many moles of N2 will react with 0.3034 moles of Mg?
3 Mg + N2 Mg3N2
Round answer to 4 sig-figs.
Answer:
0.1011 moles of N₂
Explanation:
This is the reaction:
3 Mg + N₂ → Mg₃N₂
3 moles of magnesium can react to 1 mol of nitrogen in order to produce 1 mol of magnesium nitride.
We can solve this by a rule of three:
3 mol of Mg need 1 mol of N₂ for the reaction
Then, 0.3034 moles of Mg may react to (0.3034 . 1) / 3 = 0.1011 moles of nitrogen.
The stoichiometry is 3:1
can someone help me figure out what the Lewis structure for NCl2−?
Answer:
Chlorine is in group 7A, so it has 7 valence electrons
The Lewis structure for the molecule NCl²⁻ with -2 charge is attached in the image below.
What are Lewis structures?Lewis structures are also called as electron dot structures and can be drawn if the molecular formula of a compound is known. It provides information regarding the nature of bond and the position of atoms .
They are also capable of exhibiting the lone pair if any present in a molecule or compound.Lewis defined a base to be an electron pair donor and an acid to be an electron pair acceptor.
They are capable of reflecting electronic structure of elements and even the pairing of electrons . In the diagram, each dot represents an electron while a pair of dots represent a bond between the atoms.It helps in understanding the bonding between the two atoms.
Learn more about Lewis structures,here:
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Which change does not increase the speed of reaction between zinc and hydrochloric acid?
By adding the decreasing the temperature, the speed of the reaction will not be increased.
What is speed of the reaction ?The reaction rate, which is a measure of how quickly reactants are consumed as well as products are created, determines the speed of a reaction.
When the temperature is lowered, the molecules move more slowly and collide less. The reaction's speed is slowed as the temperature drops.
Therefore, by adding the decreasing the temperature, the speed of the reaction will not be increased.
To know more about speed of reaction.
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If one mole of nitrogen is used how many liters of hydrogen are needed
Answer:
300
Explanation:
Cu2(s)+O2(g)=Cu2O(g)+SO2(g)
please help urgent will give brainiest
Answer:
2 Cu2S + 3 O2 = 2 Cu2O + 2 SO2
Explanation:
2 Cu2S + 3 O2 = 2 Cu2O + 2 SO2
How many liters of CH4 gas are there in 1.20 moles of CH4 when the gas is held under standard conditions?
Please answer quickly!
Answer:
26.88 L
Explanation:
When any gas is held under standard conditions, one mol will occupy 22.4 liters.
With the above information in mind, we can calculate how many liters would 1.20 moles of CH₄ gas occupy under standard conditions:
1.20 mol * 22.4 L/mol = 26.88 L
So 1.20 moles of CH₄ would occupy 26.88 liters.
What pattern do we see when looking at the fossil record? *
Organisms became more complex over time
Organisms became simpler over time
Organisms changed very quickly over time
Answer:
Organisms become more complex over time.
Explanation:
We all evolved from the first bacteria, which was relatively simple. We see over time that things become more adapted, slowly adding eyes, lungs, behavioral patterns, and consciousness.
Step 4: Model the energy change in the reaction.
a) Create an energy graph that illustrates the energy change in the reaction.
b) Construct your graph on a blank sheet of paper. Be sure to label the axes, provide a title, and
identify the reactants and products on the graph.
Answer:
Sorry if this is hard to see, this was the best I could do, but the top line says C3H8 + O2, and the bottom line says CO2 + H20, with the heat input being -2043.96 kJ/mol
Explanation:
This is correct for me
Explore: Arrange the matter
from largest to smallest.
Organ
Molecule
Organelle
. Atom
Organism
. Cells
. Tissues
Elements
Answer:
The levels, from smallest to largest, are: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
Explanation:
The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Answer:
the matter
from largest to smallest.
- organism-organ-organelle-tissue-cell-atom-elements-molecule
A container of hydrogen peroxide originally has a mass of 28.96 grams and then completely decomposes into water and oxygen gas. The mass of water produced is 15.33 g. What mass of oxygen gas was also produced?
Answer:
dhshrvehduvhdhehejieeiie
Emma wrote, 'My investigation was good' , as her conclusion.
Philip said this was not a scientific conclusion.
Explain why Emma's conclusion is not scientific
Answer:
Emma's conclusion is not scientific. She is stating an opinion because she thinks her investigation was good which is not necessarily scientific.
If the substance in the diagram was heated to T2, what is happening if the substance is allowed to approach T1?
1.The average kinetic energy is decreasing
2. The average kinetic energy has increased
3. The highest energy level has decreased
4. Fewer molecules would have a lower energy level
5. More molecules have a higher energy level
Answer:
b
Explanation:
The
of a chemical reaction is the maximum amount of product that can be produced
Answer= Maximum amount of product that could be obtained under ideal conditions from a given amount of reactants.
Explanation:
The theoretical yields is the ideal maximum amount of a product that can be produced during a chemical reaction while the limiting reactant is the reactant that determines the maximum amount of product that can be formed. mitgliedd1 and 61 more users found this answer helpful.
Bright red color (R) is dominant over grey color (r) in a type of fish , what color is the fish
Which statement is true regarding nuclear power plants?
The disposal of radioactive wastes is an intended benefit.
Uranium mining is an intended benefit.
Damage caused to the environment is an unintended consequence.
The creation of large amounts of electricity is an unintended consequence.
but its c because it dealing with power
Explanation:
How many cubic centimeters are in the block? if the length is 1, the width is 1 and the height is 1?
Answer:
Volume = [tex]1cm^3[/tex]
Explanation:
Volume of cube = [tex]s^{3}[/tex]
Wherein,
s = length of side
Hence,
If the length of each side is 1cm,
Volume = [tex]1^3[/tex]
= 1[tex]cm^3[/tex]
How many moles are in 1.7 x 10^50 particles of Al?
2.8 × 10²⁶ moles Al
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
MolesAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Stoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
[Given] 1.7 × 10⁵⁰ particles Al
[Solve] moles Al
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
[DA] Set up: [tex]\displaystyle 1.7 \cdot 10^{50} \ particles \ Al(\frac{1 \ mol \ Al}{6.022 \cdot 10^{23} \ particles \ Al})[/tex][DA] Divide [Cancel out units]: [tex]\displaystyle 2.82298 \cdot 10^{26} \ moles \ Al[/tex]Step 4: Check
Follow sig fig rules and round. We are given 2 sig figs.
2.82298 × 10²⁶ moles Al ≈ 2.8 × 10²⁶ moles Al
why is cardboard, paper, or ceramic a better choice for coffee mugs?
In a chemical reaction, the reactants (beginning elements or compounds) but have the same number and type of atoms as the products (the new substance created). This is an example of...
a) law of conservation of mass
b) law of conservation of energy
c) covalent bonding
d) product synthesis
Answer:The law of conservation of matter says that matter cannot be created or destroyed. In chemical equations, the number of atoms of each element in the reactants must be the same as the number of atoms of each element in the products. ... There are two oxygen atoms in the reactants and two atoms of oxygen in the product.
Explanation:
name three pure elements and three pure compounds
Answer:
Pure elements:
Hydrogen(H)
Nitrogen(N)
Magnesium (Mg)
Pure Compounds:
Oxygen gas(O2)
Water (H2O)
Ammonia (NH3)
Explanation:
Hope it helps.Please mark me brainliest.^-^
1. Take a look at all the elements in period 3. What do you notice? *
5 points
A. They have the same number of energy levels
B. The number of energy levels decreases as you go across the period from left to right
C. They have the same number of valence electrons
D. The number of valence electrons decreases as you go across the period from left to right
Answer:
D
Explanation:
beacause all the elements in period 3 has different valence electrons hence you look at the first element in period 3 is sodium which has a valence electron of 1 when you go across the period to the right their valence electron decreases to be negative
Answer:
D is the correct answer i hope this is correct
The image shows sedimentary rock layers with index fossils and a fault.
Which statement accurately describes the rock layers?
Layer 8 is older than layer 1.
Layer 3 is younger than layer 6.
Layer 4 and layer 10 are the same relative age.
Layer 2 and layer 9 are the same relative age.
Answer:
Layer 2 and layer 9 is the same relative age since it is the same type of rock and has the same fossils.
Hope this helped!
What type of chemical reaction is
2Al(s) + + 3Cl2(g) – 2AlCl3(s)
Answer:
It's a redox reaction.
Chemistry: Atoms and elements. having trouble figuring out how to find out what element these atoms represent any help will be apreciated.
Answer:
Elements are types of atoms that have a unique number of protons. In fact, from left to right, the periodic table is arranged by the number of protons that each element contains. oms make up matter. An atom is the smallest unit of matter that retains all of the chemical properties of an element.
Explanation:
Which of the following is an oxidation-reduction reaction?
ZnS(s) + 2O2(g) Right arrow. ZnSO4(s)
CaO(s) + H2O(l) Right arrow. Ca(OH)2(s)
6Li2O(s) + P4O10(g) Right arrow. 4Li3PO4(s)
SO2(g) + H2O(l) Right arrow. H2SO3(aq)
Answer:
A: ZnS(s) + 2O2(g) --> ZnSO4(s)
Explanation:
;) good luck
Answer:
The answer is A or the first choice
Explanation:
ZnS(s) + 2O2(g) Right arrow. ZnSO4(s)
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will gravitational force change based on a change of mass or a change of distance between objects
Answer:
The size of the gravitational force is proportional to the masses of the objects and weakens as the distance between them increases.
a moon phase that looks like a full circle is called.
Answer:
a full moon or new moon
Explanation: