answer: 6.875 moles
nCH4 = nCO2 = 110/(12 + 4) = 6.875
6.875 moles of carbon dioxide are produced from the combustion of 110 g of CH4.
What are moles?The mole is a SI unit of measurement that is used to calculate the quantity of any substance.
The reaction is
[tex]\rm CH_4 + 2O_2 = CO_2 + 2 H_2O[/tex]
To calculate the number of moles, we will use the following formula
[tex]\rm Number\;of \;moles= \dfrac{mass}{molar\;mass}\\\\\\\rm Number\;of \;moles= \dfrac{110g}{12 + 4 } =6.875[/tex]
Thus, the number of moles are 6.875.
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a 30-n net force on a skater produces an acceleration of 0.6 m/s2. what is the mass of the skater
Answer:
The answer is 50 kgExplanation:
The mass of the skater can be found by using the formula
[tex]m = \frac{f}{a} \\ [/tex]
f is the force
a is the acceleration
From the question we have
[tex]m = \frac{30}{0.6} \\ [/tex]
We have the final answer as
50 kgHope this helps you
10. Haley the hummingbird can fly from a pansy flower to a hibiscus flower 20 meters away in 5 seconds.
What is her speed?
Answer:
4
Explanation:
Speed=Distance/time, so 20/5 divide time divided by distance. so the answer is 4.
The speed of Haley the hummingbird is 4 m/s.
From the question,
We are to calculate the speed of Haley the hummingbird
Speed is given by the formula
[tex]Speed =\frac{Distance\ traveled}{Time\ taken}[/tex]
From the given information,
The hummingbird can fly from a pansy flower to a hibiscus flower 20 meters away in 5 seconds.
That is,
The bird can cover a distance of 20 meters in 5 seconds.
Therefore,
Speed of the hummingbird = [tex]\frac{20}{5}[/tex]
Speed of the hummingbird = 4 m/s
Hence, the speed of Haley the hummingbird is 4 m/s.
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i think im right but im not sure question 12 i’m timed thxxx
Answer:
Your answer is correct.
Atoms are like letters of the alphabet and the compounds are like they make are like words this sentence:
Ed helper question
Explanation:
This is very correct atoms can be viewed as elements and compounds the words that are made from them.
Elements are distinct substances that cannot be split up into simpler substances. Such substances are only made up of one atom. This can pictured as alphabets also. They are the fundamental units by which words are formed.Compounds are substances composed of two or more kinds of atoms joined together in a definite grouping. They are like words.
Mr. Johnson’s dinner table is 60 inches wide. How wide is his table in feet?
Answer:
his table is 5 feet wide
Which is Chemical Equation is Balanced?
CH, +0,------CO,+2H2O
4A1+30,-----2A1,0,
H2+O2-----2H,0
GIVING BRAINLIST IF YOU GET THE ANSWER RIGHT Particles in a warmer block will have ________ kinetic energy and move ______than the particles in the colder block.
Question 10 options:
more/faster
less/slower
less/faster
more/slower
Answer:
less/ faster
Explanation:
The plant on the left is growing more because it has been receiving more water
Observation or inference
Answer:
am not sure i understand but i think it got more chlorophyll
what type of reaction is CO2 + H2O–H2CO3?
Fill in the blank questions usually require
a. One key word
b. A list of vocabulary words
in the answer.
C. Complete sentences
d. None of these
Please select the best answer from the choices provided
Ο Α
B
С
D
The answer to this question is that: In fill in the blanks, there must be one keyword rather than a full sentence.
What should be filled in fill in the blanks?A Fill in the Blank inquiry comprises of an expression, sentence, or section with a clear space where an understudy gives the missing word or words.
In most cases, it should be filled with one keyword.
Thus, option A is correct.
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Which part of the electromagnetic spectrum has a lower frequency than visible light?
gamma rays
x-rays
infrared
ultraviolet
Answer:
Infrared Radiation
Explanation:
Infrared Radiation
The range of infrared frequencies extends up to the lower limit of visible light, just below red.
The answer is infrared.
How many valence electrons are there in Copper(ll) and copper(lll).
Answer:
Copper typically forms a bluish green solution. Copper (Cu) has two valences Cu I (cuprous) has one valence electron and Cu II (cupric) has two valence electrons.
'
Explanation:
If a car travels 600m in 40 seconds how fast is it going?
Answer:
S = d/t s = 400m/ 20 sec = 20m/s
Explanation:
During witch process dose carbon dioxde gas move from the atmosphere
Answer: it is density
Explanation:
HELP! ONLY HAVE & MINUTES LEFT!
why does "Characteristics of objects in the solar system" supports nebular theory
Hii please answer this really easy x
Answer:
What do we need to find in that question ?
Answer:
1) no
2)yes
3)no
4)yes
Explanation:
hope that it helped you
Z forms chloride compounds with the formulae ZCl2 and ZC13.
ZCl2 is a pale green solid and ZC13 is a brown solid.
Based on the given information, which are true about element Z?
I Element Z has high melting point.
II Element Z can form complex ion.
III Element Z has more than one oxidation number.
IV Element Z is a metalloid.
A I, III
B II, IV
C I, II, III
D I, II, III, IV
Answer:
(B) II, IV.
hope this answer is helpful for u.
The _____ variable is the change you are observing and that changes in response to the _____ variable.
Answer:
Independent variable, dependent variable
Explanation:
Answer:
Dependent variable, independent variable
Explanation:
The dependent variable DEPENDS on the independent variable.
How many p-orbitals are occupied in a Ar atom?
Answer:
6
Explanation:
p orbital can hold up to six electron. Argon electron configuration will be 1s²2s²2p⁶3s²3p⁶
Explanation:
Quantum mechanics stipulates that for each energy level, the p sub shell contains 3 orbitals, px, py, and pz. These orbitals are oriented in alignment with x, y, and axis.
Use the Periodic Table to find molar mass of water. Sodium hydroxide (NaOH) and hydrochloric acid (HCl) react to form sodium chloride (NaCl) and water according to the equation: NaOH + HCl → NaCl + H2O What mass of water forms when 2.75 × 10–4 mol NaOH reacts completely? 2.75 × 10–4 mol NaOH = g H2O
Answer:
0.00496
Explanation:
Answer on EDG 2020
Answer:
the answer is 0.00496
Explanation:
2.75 x 10-4 mol NaOH = 0.00496 g H20
the second part is A.
FOR EDG 2020
! !!
A portion of the periodic table is shown below:
Which element has the electron configuration 1s22s22p6?
Argon (Ar)
Chlorine (Cl)
Fluorine (F)
Neon (Ne)
Answer:
here is your answer
Explanation:
the fourth one Neon (Ne) he the configuration given above .
pls make it the brainliest !!!
Answer:
Neon (Ne)
Explanation:
2+2+6=10
This diagram shows a ball rolling from left to right along a frictionless surface. In which sections will the ball be subjected to a balanced force?
A. Sections 2 and 5
B. Sections 2 and 3
C. Sections 1 and 4
D. Sections 2, 3, and 5
In sections 1 and 4 the ball is subjected to a balanced force. Hence, option C is correct.
What is the frictionless surface?A Frictionless surface refers to that kind of surface where the force acting on any object which makes it difficult for the object to slide is almost zero or negligible, i.e., no resistance between surface or substance allowing the object to slide and move freely without any friction.
In sections 1 and 4 the ball is subjected to a balanced force. Hence, option C is correct.
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#SPJ2
Answer:1 and
Explanation:
The energy required to remove an electron from a neutral atom is known as its:
Answer:
Ionization energy
Explanation:
In a solution, the substance into which other substances dissolve is called the ?
Answer:
Solvent
Explanation:
The solute is the substance that is being dissolved, while the solvent is the dissolving medium.
Why can't anything cheer me up rn?...
:'(
not sure.. you should eat poptarts
Answer:
well if u need some one i'm here
Explanation:
...
PERIODIC TABLE LOVERS HELP ME WITH THIS AND ILL PUT U ON BRAINLIEST !
Answer:
an educated guess of f and i
Explanation:
Please answer, please answer please answer please answer
my last 2 chemistry question.
Answer:
1. filtration and evaporation
2. i) water is added to the sand and salt mixture
ii) then the mixture is filtrated and so the sand and the salt water was seperated
iii) the salt water is heated with the help of burner until the water gets evaporated
iv) after the water gets evaporated, the salt is remained in the container
3. observation:
on adding water to the mixture, the salt is completely dissolved in the waterwhen filtrated the sand is seperated from the salt waternow the salt water when heated with the burner until the evaporation, the water is evaporatedthe salt is precipitated and remained in the container4. cautions:
while using the burner, we should be cautious with firethe container that is heated should be holded with the help of a cloth to avoid heatWhat quantity is measured in g/dm^3
Answer:
Molar concentration is measured in g/dm³
What happens to the luminosity of stars in the main sequence as temperature decreases
Evidence for past events in Earth's ancient history are provided by:
a
time lines
b
history books
c
the biodiversity of North America
d
rocks and the fossils within them