(I) [tex]H_2SO_4+ 2NaHCO_3--> Na_2SO_4 + 2 H_2O + 2CO_2[/tex]
(II) [tex]H_2+I_2 --> 2HI[/tex]
(III) [tex]2NaOH+H_2SO_4--> Na_2SO_4+ 2H_2O[/tex]
(IV) [tex]2FeSO_4--> Fe_2O_3+SO_2+SO_3[/tex]
(V) [tex]2C_3H_6O_2+7O_2-->6CO_2+6H_2O[/tex]
_____________________________________Molecular Masses of the following:------------------------------------------------------------------------------------------------------------
(I) [tex]H_2SO_4[/tex]
(ANS) [tex]98 \frac{grams}{mol}[/tex]
__________________________________________________________
Solution:
Molecular mass of,
H = 1
S = 32
O = 16
Now,
There are 2 atoms of Hydrogen, 1 atoms of Sulfur and 4 atoms of Oxygen present, thus,
[tex]H_2SO_4 = (1x2)+32+(16x4)[/tex]
[tex]H_2SO_4 = 98 \frac{grams}{mol}[/tex]
_____________________________________(II) [tex]CH_4[/tex]
(ANS) [tex]16 \frac{gram}{mol}[/tex]
_________________________________________________________
Solution:
Molecular Mass,
Carbon = 12
Hydrogen = 1
Now
There are 1 atom of Oxygen and 4 atoms of Hydrogen present, thus,
[tex]CH_4 = 12 + (1x4)[/tex]
[tex]CH_4 = 16\frac{grams}{mol}[/tex]
_____________________________________(III) [tex]NH_3[/tex]
(ANS) [tex]17 \frac{grams}{mol}[/tex]
__________________________________________________________
Solution:
Molecular Mass,
Nitrogen = 14 grams
Hydrogen = 1
Now,
There are 1 atoms of Nitrogen and 3 atoms of Hydrogen present, thus,
[tex]NH_3 = 14 + (1x3)[/tex]
[tex]NH_3 = 17 \frac{grams}{mol}[/tex]
_____________________________________How many Grams of Iron(fe):[tex]Fe + Cl_2 --> FeCl_2[/tex]56 71
x 35.5
_____________________________________[tex]X = \frac{56 x 35.5}{71}[/tex]
Simplify the equation
X = 28 grams
__________________________________________________________
Answer:
28 grams of Iron(fe) will react with chlorine.
_____________________________________Best Regards,'Borz'Help fast please What is the definition of homeostasis?
A. Your body out of balance
B. Being sick
C. Your body not needing any regulation
D. Your body systems staying in balance
Answer:
I think its D
Explanation:
Answer:
D
Explanation:
It's B because homeostasis is the ability to maintain a relatively stable internal state that persists despite changes.
Hope this helps!!! If this is incorrect, I'm so sorry! Have a lovely day.
how much heat is absorbed when 15.0 g of liquid water is heated until the temperature increases by 16.0.
A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons does it have?
13
5
9
4
Answer:
It has 5 neutrons
Explanation:
The fact that it is a neutral atom tells us that the number of electrons and protons is the same:
The problem tells us there are 4 electrons, thus there are 4 protons.The average mass of an atom is the sum of the number of protons and the number of neutrons:
Mass = # Protons + # NeutronsWith the above information in mind we can calculate the number of neutrons:
9 amu = 4 Protons + # Neutrons# Neurons = 5 NeutronsMake
a claim about why cells need ribosomes.
Summarize evidence to support the claim
and explain your reasoning.
ls?
What is the subscript of 3MgC12
The gas could be which of the following? Select all that apply. Hint: These gases are more dense than air. Nitrogen Neon Argon Carbon Dioxide Helium Hydrogen Propane Carbon Monoxide
Answer:
nitrogen, oxygen, carbon dioxide, argon, hydrogen, helium
Explanation:
Which element is probably most like Carbon? and why
Which of these is NOT a planet due to its small size and lack of dominant
gravitational pull?
()Saturn
()Mercury
()Uranus
()Pluto
Plss help :)
Answer:pluto
Explanation:
Since 2006, per the International Astronomical Union's planetary criteria, Pluto isn't considered a planet because it hasn't cleared the neighborhood around its orbit of other objects.
Answer:
Pluto
Explanation:
Saturn is huge, second biggest plant in our solar system
mercury is big same with Uranus
and Pluto is closer to a moon than a planet
which information does the chemical formula co2 not give you?
A. number of valence electrons in each atom
B. ratio of atoms in the compound
C. total number of atoms in one molecule of the compound
D. type of elements in the compound
Answer:
A
Explanation:
Considering the definition of chemical formula, the correct answer is option A): number of valence electrons in each atom.
A chemical formula is the representation of the elements that make up a compound and the proportion in which they are found, or the number of atoms that make up a molecule.
In other words, a chemical formula is an alphanumeric expression that is used to indicate the composition of a chemical substance and that is constructed from the symbols of its constituent elements, affected by numerical subscripts that report the number of atoms of each element that it is part of the substance.
In summary, the correct answer is option A): number of valence electrons in each atom.
Learn more:
https://brainly.com/question/18452587?referrer=searchResultshttps://brainly.com/question/21406550?referrer=searchResultsWHAT DOES THE MASS OF AN OBJECT MEASURE HURRYYYYYYYYYYYYYYYYYYYYY
Answer:
object's inertial property
Explanation:
The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it. The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.
Answer:
The mass of the object internal property, or the amount of matter it contains
Explanation:
Hope this helps! Happy Holidays!
What is that Molar mass of ammonium phosphite?
Answer:
149.09 g/mol GOOD LESSONS ♡
Answer:
The answer is 149.09 g/mol
Explanation:
I hope this helps!!
Carbon tetrafluoride, CF, contains four identical C-F bonds. Fluorine is more
electronegative than carbon. How will this impact each of the bonds between carbon and
fluorine?
a. The electrons in each C-F bond will be more attracted to the carbon atom.
b. The electrons in each C-F bond will be attracted equally to both atoms.
C. The electrons in each C-F bond will be more attracted to the fluorine atom.
d. The electrons in each C-F bond will separate easily.
Answer:
C. The electrons in each C-F bond will be more attracted to the fluorine atom.
what is the anwser to this question
Answer:
The answer is d
Explanation:
Answer:
Nitrogen makes up most of the Earth's atmosphere
Explanation:
what element has the same number valence electrons as strontium?
Answer:
Beryllium
Explanation:
They are in the same group
A radioactive substance has a half life of 2.5 days. How much of 25.0 z is left after 10 days?
1.563 g
Further explanationGiven
A half life of 2.5 days ⇒ t1/2 = 2.5 days
initial sample ⇒ 25 g
duration of decay ⇒ 10 days
Required
sample left after 10 days
Analysis
Use decay Formula :
[tex]\tt Nt=No.\dfrac{1}{2}^{T/t1/2}[/tex]
Solution
[tex]\tt Nt=25.\dfrac{1}{2}^{10/2.5}\\\\Nt=25.\dfrac{1}{2}^4\\\\Nt=\boxed{\bold{1.563~g}}[/tex]
Paraphrase
Substance left after 10 days = 1.563 g
Someone please help will mark as brainliest
Answer:
4. A subscript is a sentence below a line. You cannot change subscripts in a chemical formula to balance a chemical equation
5. where's/whats the equation??
6. ^^^
Explanation:
Justify the placement of element II (Chlorine), on the periodic table, within its group and period.
Which of the following is a characteristic of covalent compounds?
I need to someone to explain the whole being of Chemistry. I do not understand a single thing, nothing makes sense to me. Literally, I'm going to fail this class because I do NOT understand a single thing taught to me. Maybe it's because I was mistakenly put into Chemistry Pre AP instead of on level but it's so hard and- I just do not get it.
Answer:
Explanation:
In Pre-AP Chemistry, the development of models to explain their macroscopic observations is a primary means through which students develop an understanding of the molecular world.
You will be forced to think and apply concepts to new situations, and even derive your own theories from application. This is excellent preparation for the higher levels of thinking required in college.
Chemistry, the science that deals with the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these processes.
is bird seed homogeneous or heterogeneous
Answer:
heterogeneous
In order to give birds a varied and balanced diet, commercial bird seed blends typically include a range of seeds, grains, and other substances. As a result, bird seed is frequently categorised as a heterogeneous blend.
A seed is referred to as homogenous if its genetic makeup, size, shape, and other traits are all consistent. To guarantee consistency in the ensuing plants, these seeds are typically created through controlled breeding or genetic manipulation. A heterogeneous seed, on the other hand, is one that varies in genetic makeup, size, shape, and attributes. These seeds frequently result from cross-pollination or natural pollination between various species or kinds.
To know more about heterogeneous seed, here:
https://brainly.com/question/30583932
#SPJ6
what is the density of a liquid if it's volume is 125 mL and it's mass is 50g?
Answer:
0.4g/ml
Explanation:
density= mass/volume
density=50g/125ml
density=0.4g/ml
Which of the following is true about chemical reactions?
They are accompanied by changes in energy.
They form new substances with new properties.
both A and B
neither A nor B
Answer:
B : THEY FORM NEW SUBSTANCES WITH NEW PROPERTIES .
Why is sublimation such a critical component for the water cycle in cold climates?
Answer:
Sublimation is the transition in physical state from solid (ice) to vapor with no intermediate liquid stage. In other words, the ice becomes water vapor without melting. Ideal weather conditions would be low humidity (to allow vaporization), high altitude (lower air pressure facilitates the transition), and strong sunlight (to provide the energy for the transition). High snow-packed mountain ranges offer all of these conditions. Since the temperature is too cold for evaporation, sublimation is needed to provide enough water vapor to feed the water cycle and promote precipitation elsewhere on the planet. Without it, the water would stay frozen in the snow and ice and reduce the amount of liquid water that would replenish the planet.
Explanation:
plato
2. The heat energy fequired to change a
unit mass of a solid into a liquid at
constant temperature is called
(1) heat of vaporization
(2) heat of formation
(3) heat of solution
(4) heat of fusion
Two seventh grade students are studying how sound waves are transferring energy.
They beat a pot and the sound waves cause waves in the glass of water.
How would the students increase the amplitude of the waves in the glass of water?
Hit the pot softer with less energy
Hit the pot harder with more energy
Hit the pot faster at a higher frequency
Hit the pot faster at a slower frequency
Answer:
Hit the pot faster at a higher frequency
Explanation:
I feel like it would be because it makes more sense to me but I really have no clue tbh
Help plz 15 pointsss
Which formula represents an ionic bond? 1 NaCl 2 N2O 3 HCl 4 H2O
Answer:
1 NaCl
Explanation:
NaCl is sodium chloride, and sodium chloride is an ionic compound because it's held together with ionic bonds.I dont have heat i have
elecromagnetic,
gravitacianal,
nucler and mechanical which one is it
Answer:
Your answer would be mechanical.
Explanation:
Hope you do good BRAINLYISETTT
URENT URENT URENT HELP PLEASE
Answer:
its D.
Explanation:
How much oxygen (O) is in 5.41 × 106 atoms of oxygen
Answer:
They show you how to do it sweetie
Explanation:
123456789 Common math