Answers
Explanation:
hello
the answer is b
O or oxygen has 16 molar mass and C or carbon has 12
so CO2 or carbon dioxide=(2×O)+C=(2×16)+12=46
Related Questions
Finally, examine the atomic spectrum below. Estimate the wavelength
of each spectral line, then use that collection of wavelengths to try and
determine the identity of the element using the internet. This is the
kind of work a graduate student in chemistry might be assigned to do.
400
450
500
650
700
750
550 600
wavelength (nm)
Identity of the element
Answers
The estimated wavelengths and identities of the elements of spectral line in the given atomic spectrum is:
blue spectral line - 470 nm; Iron green spectral line - 490 nm; Magnesium yellow spectral line - 610 nm; Sodiumred spectral line - 660 nm; HydrogenWhat is an atomic spectrum?Atomic spectrum is the spectrum of frequencies or wavelengths of radiations absorbed or emitted when electrons transitions between on energyblevel to another.
The estimated wavelengths as well as identities of the elements of spectral lines shown above are as follows
blue spectral line - 470 nm; green spectral line - 490 nm; Ironyellow spectral line - 610 nm; Sodiumred spectral line - 660 nm; HydrogenTherefore, the wavelengths and colors of the spectral line in an atomic spectrum is useful in identifying elements.
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What are renewable resources?
Answers
Answer:
Renewable sources are something that can be renewed like
Plants
Trees
etc
uh
Explanation:
Non-renewable for example is you cant renew them at all
there built by the earth themselfs
Like
cole
gemstone
Steel
Metal
etc
How to pay taxes I MEAN
Balance the following equation.
( ? )NaCl + ( ? ) AgNO3 → ( ? ) AgCl + ( ? ) NaNO3
Answers
Balanced equation:
NaCl + ( 1 ) AgNO₃ → ( 1 ) AgCl + ( 1 ) NaNO₃
(aq) (aq) (s) (aq)
Both the sides are already balanced
Why can’t sodium metal be manufactured by the electrolysis of brine?
Answers
Answer:
Explanation:
The quick and short answer to this question is that the moment it is made into Na (the atom) the moment that happens, Na will react with water to become NaOH. Sodium is very responsive to water.
Equation
2Na + 2HOH ====> 2NaOH + H2
▲ Two general chemistry students working together in the lab weigh out 0.832 g of CaCl2 2 H2O into a crucible. After heating the sample for a short time and allowing the crucible to cool, the students determine that the sample has a mass of 0.739 g. They then do a quick calculation. On the basis of this calculation, what should they do next? (a) Congratulate themselves on a job well done. (b) Assume the bottle of CaCl2 2 H2O was mislabeled; it actually contained something different. (c) Heat the crucible again, and then reweigh it.
Answers
After heating the crucible, cooling, and weighing the sample as 0.739 g, the students should have heated the crucible again and then reweigh the sample until a constant weight is obtained.
Drying samples with cruciblesThe sample being heated, CaCl2 2 H2O, contains water of hydration.
In order to arrive at an anhydrous sample of the salt, all the water molecules must be completely evaporated off by heating.
To do so, the sample should have been heated to constant weight by repeated heating and weighing until there is no longer a change in the weight of the sample.
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Choose the answer that describes the hierarchy among these three body regions.
A. The oral region is part of the facial region, and the facial region is part of the cephalic region.
B. The cephalic region is part of the facial region, and the facial region is part of the oral region.
C. The cephalic region is part of the facial region, and the facial region is part of the manual region.
D. The oral region is part of the cephalic region, and the cephalic region is part of the facial region.
Answers
Answer:
letter: B
Explanation:
thats is the true answer.
pleas heart my heart my answer
Explain the four basic types of chemical reactions. Be sure to include a sample equation for each type.
Answers
Acid Base reaction (Neutralization reaction)
it is the reaction between acid and base which neutralize each other to give salt and water.
example: Hydrochloric acid + Sodium hydroxide --------> sodium chloride + water
HCl + NaOH--------> NaCl + H2O
MATH AND SCIENCE
Out of around 260,000 known species of angiosperms, approximately 195,000 are dicots. what percentage of angio sperms are dicots
Answers
Answer:
Explanation:
Formula
% = (dicots/angiosperms) * 100
Givens
angiosperms (total) = 260000
Dicots = 195000
Solution
% = (195000/260000) * 100
% = 0.75 * 100
Answer: % = 75% are dicots
9. Compound A, with molecular formula C5H₁2 has only 1° and 4° carbons. What is its structure? Its other isomer has only 1°, 2° and 3° carbons. What is its structure also?
draw the structure
Answers
Answer:
Ok giv me a min
Explanation:
Titanium is a transition metal used as pins and plates to support badly broken bones. Titanium is extracted from an ore that
contains the mineral titanium oxide. This oxide is converted into titanium chloride. Titanium chloride is heated with sodium to
form titanium metal. This reaction takes place in an atmosphere of a noble gas, such as argon
4Na(s) + TICIO
Ti(s) + 4NaCl(s)
Calculate the mass of titanium that can be extracted from 570 kg of titanium chloride.
Relative atomic masses:
CI 35.5
Ti 48
What is the Mass of titanium (g)
Answers
Using the stoichiometry of the balanced chemical reaction, the mass of the Ti is 144Kg.
What is a chemical reaction?The term chemical reaction refers to the combination of two or more substances to yiled one or more products.
The reaction equation here is; 4Na(s) + TICI4---->Ti(s) + 4NaCl(s)
Number of moles of TiCl4 = 570 * 10^3g/190 g/mol = 3000 moles
If 1 mole TiCl4 produces 1 mole of Ti
3000 moles of TiCl4 produces 300o moles of Ti
Mass of Ti produced = 3000 moles * 48 g/mol = 144Kg
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Hi
Can someone explain the second marking point?
Why is it bubbles of air and not C02?
Answers
What is the molarity of a solution formed from 0.625 moles of NaCl with a total volume of 250 mL
Answers
Answer:
2.5 M
Explanation:
.625 M / .250 Liter = 2.5 M
Can I get answer to both of those questions
Answers
pH = -log(3.4x10^-2)
pH = 1.5
2. As a solution becomes more basic, [H3O+] decreases while [OH-] increases.
Before balancing this equation, how many oxygen atoms are present on the product side of the following equation:
Answers
Answer:
3
Explanation:
co2 has 2 and h2o has 1
product is right side
Quantity of atoms in .3521 mol in ZrSiO4
Answers
Answer:
look the image
Explanation:
How many moles of water are produced from the decomposition of 3.4g of hydrogen peroxide, H2O2
Answers
Answer:
0.1 moles
Explanation:
3.4 g * (1 mol/34 g) = 0.1 moles
Which one of the following pairs of atoms would form a non-polar covalent bond?
a. Cl and C1
b. Na and Cl
C. C.and o
d. N and O
Answers
(ii) Explain why magnalium is harder than aluminium.
Answers
Answer:
Magnalium is stronger than aluminium alone but still has a low density.
Explanation:
What’s the answer?????? I accidentally clicked the 1st one.
Answers
Answer:
its the 1st one at the top
Consider the nuclear equation below.
Na-
22Ne +98
0
10
Which is the missing value that will balance the equation?
O-1
O 0
O +1
O +2
Answers
Answer:
+1
Explanation:
This is my question
Answers
Answer:
[tex] \\ [/tex]
refer the three attached images for the respective answers.
hope helpful ~
Use the periodic table to answer the questions below.
Which diagram shows the correct electron
configuration for nitrogen (N)?
Answers
atomic mass for N = 7
electron configuration: 1s²2s²2p³
orbital diagram:
↑↓ ↑↓ ↑ ↑ ↑
1s² 2s² 2p³
If I add 30mL of water to 125mL of a 0.15M of NaOH solution, what will the molarity of the dilated solution be?
Answers
Answer:
.12 M
Explanation:
.15 M / L * .125 L = .01875 Moles
now add 30 ml for total 155 ml = .155 L
.01875 M / .155 L = .12 M
One-fourth of a gaseous mixture is Argon and 3/4 of the gas is Oxygen. The total pressure in the container
is 8 atmospheres. What is the partial pressure of the Argon?
Answers
Answer:
nose
Explanation:
xde
HELP PLS ASAP
how many liters of CO2 are produced when 32.6 liters of propane gas C3H8 reacts with excess oxygen at STP?
C3H8 + 5O2 > 4H2O + 3CO2
Answers
if you observe a first quarter on January 3 on what date will you see a full moon?
Answers
if you observe a first quarter on January 3, the date will you see a full moon is on February 1st.
What is the full moon about?The lunar phase during which the Moon is completely illuminated from Earth's perspective is known as the full moon. When Earth is situated halfway between the Sun and the Moon, this happens. This indicates that the near side of the moon, which faces Earth, is fully illuminated by the sun and appears as a roughly circular disk.
The Moon is a symbol for both the emotional and physical bodies. The full Moon is a time to be open and receive the spirit's light and awareness into your physical, emotional, and mental bodies
It takes 29 day, to get to the full moon. This will be:
= January 3 + 29 days
= February 1st
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Which statement best predicts and explains the product of a single displacement reaction when the cation (A) with an oxidation number of +2 and an anion (B) with the oxidation number of -3 react and form a compound?
A+2B-3 is the predicted formula when each metal cation has a charge of +2 and each non metal has a charge of -3.
B2A3 is the final formula for the metal anion bonding to the non-metal cation in a 2:3 ratio.
A3B2 is the predicted formula with an overall charge of the compound being zero and each atom has 8 valence electrons in their outermost electron shell.
A3B2 is the predicted formula is made when each metal cation gains three electrons from the anion while each nonmetal loses 2 electrons to each of the cations.
Answers
The statement that best predicts and explains the product of a single displacement reaction is ; ( C ) A3B2 is the predicted formula with an overall charge of the compound being zero and each atom has 8 valence electrons in their outermost electron shell.
Octet stateGiven that the oxidation number is +2 shows that it will be an octet when it donates its 2 electrons. also for octet B it will become complete when it accepts 3 electrons. Therefore in order to balance out the octet of each atom is by cross multiplying to get A3B2.
Hence we can conclude that The statement that best predicts and explains the product of a single displacement reaction is ; A3B2 is the predicted formula with an overall charge of the compound being zero and each atom has 8 valence electrons in their outermost electron shell.
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Calculate the volume that 3.
60g H2 gas will occupy at stp
Answers
Answer:
mass over molarmass ×volume
90
What is the scientific word used to describe the process of the protein in the eggs changing form?
Answers
Answer:
Denaturation
Explanation:
What is the numbers of molecules for 65.8g of CO2?
Answers
Answer:
8.98*10^23 molecules CO2
Explanation:
The molar mass of CO2 is 44.0 grams/mol. If we convert 65.8 grams of CO2 into moles, 65.8g CO2 / 44.0g CO2 then we get about 1.49 moles of CO2. We know there are 6.02*10^23 molecules in a mole, so we would just multiply 1.49 mol CO2 * 6.02*10^23 = 8.98*10^23