Answer:
1 - B) 2 - B) 3 - A)
Explanation:
1. C3H8 + 5O2 → 3CO2 + xH2O.. Find 'X'.
A) 3
B) 4
C) 5
D) 6
2. 4Al + 3O2 → xAl2O3. Find 'X'
A) 3
B) 2
C) 4
D) 5
3. FeCl3 + 3NaOH → Fe(OH)3 + xNACl. Find 'x'
A)3
B) 4
C)5
D)6
More in Next Question...
Someone pls help me I will make you brain
Answer:
it is c greenhouse effect please mark me brainliest
Explanation:
Answer:
green house effect
Explanation:
The answer is green house effect.
Boron has two naturally-occurring isotopes. Boron-10 has an abundance of 19.8% and actual mass of 10.013 amu, and boron-11 has an abundance of 80.2% and actual mass of 11.009 amu. What is the average atomic mass for all isotopes of boron?
A 10.0 amu
B 10.5 amu
C 10.511 amu
D 10.812 amu
Answer:
D) 10.812
Explanation:
Given:
The two isotopes of boron (B).
Boron-10 has an abundance of 19.8% and Boron -11 has an abundance of 80.2%
To find:
The atomic mass of europium.
Solution:
Mass of Boron-10 = 10.013 amu
The percentage abundance of Boron-10 = 19.8%
The fractional abundance of Boron-10 =0.198
Mass of Boron-11 = 11.009 amu
The percentage abundance of Boron-11= 80.2%
The fractional abundance of Boron-11= 0.802
The average atomic mass of Boron = A.M
A.M = Mass of isotope x Fractional abundance of isotope
= 10.013amu x 0.198 +11.009amu x 0.802 = 10.81u
Therefore, D) 10.812 amu is the atomic mass of boron.
Please answer quickly
Answer:
a) II and III
is the correct
In the fall, how does the high pressure area
affect the hurricane?
Answer:
Hurricanes occur when ocean water warms during the spring, summer and early fall.
Explanation:
Warm air just above the water’s surface rises. The rising warm air creates a reduction in pressure at the surface, what meteorologists call a low-pressure area. Because nearby air is at a higher pressure, it will flow into the low-pressure zone.
https://www.sidmartinbio.org/how-does-a-high-pressure-system-affect-a-hurricane/
14. An atom has 10 protons, 8 electrons, and 7 neutrons. What is the charge of the
atom and what type of ion is it?
The charge on an atom = # of protons - # of electrons
= 10 - 8
= +2
∴ the atom is a CATION (ion) of +2 charge.
A container contains three gases. If the partial pressure of carbon dioxide is 0.50 atm, the partial pressure of nitrogen is 0.30 atm, and the partial pressure of methane is 0.40 atm, what’s the total pressure inside the container?
Answer:
1.20 atm
Explanation:
A container contains three gases. If the partial pressure of carbon dioxide is 0.50 atm, the partial pressure of nitrogen is 0.30 atm, and the partial pressure of methane is 0.40 atm, what’s the total pressure inside the container?
Do not let chemistry questions SCARE you! The TOTAL means
ADD THEM UP.
You can do this without a scientific calculator :-)
0.50 +0.30 + 0.40 = 1.20 atm
If you increase the force on an object, its acceleration increases. True or false
Answer:
true
Explanation:
from Newton's second law of motion ,we can understand that acceleration of a body is directly proportional to the force applied on it and inversely proportional to its mass ,so as the force applied increase,the acceleration also increases
Would a 5-pound bag of iron nails be as dense as a single iron nail?
Answer:
Yes
Explanation:
Please help. Thank you!
what is the electron configuration of uranium at its ground state (in order) AND noble gas configuration?
Answer: Uranium is a chemical element with atomic number 92 which means there are 92 protons and 92 electrons in the atomic structure. The chemical symbol for Uranium is U. Electron configuration of Uranium is [Rn] 5f3 6d1 7s2. Possible oxidation states are +3,4,5,6.
Explanation:
Answer:
Electron configuration of uranium at its ground state: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6s6 5f3 6d1 7s2
Noble gas configuration: [Rn] 5f3 6d1 7s2.
yall help, i missed like a week
some of them are wrong, I need all of 1 and 2
Answer:
a. Azane
b. sulphur hexachloride
c.carbon tetrachloride
d. Carbon disulfide
e.Umbelliferone
f.Disilicon hexabromide
g. Dinitrogen trifluoride
h.
Suppose a high-flying jumbo jet with a mass of 45,000 kg cruises at constant velocity when the thrust of its engine is a constant 80,000 N. What is the acceleration of the jet?
Answer:
1.78 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{80000}{45000} = \frac{80}{45} \\ = 1.77777...[/tex]
We have the final answer as
1.78 m/s²Hope this helps you
Hòa tan hoàn toàn 1,93 gam hỗn hợp 2 kim loại Fe và Al vào dd HCl dư, sau phản ứng thu được m gam muối và 1,456 lít khí H2 ở đktc. Giá trị của m là:
Answer:
Sorry pal! Didn't understand your language.
:(
Explanation:
If you have two pistons in a system, which exerts the larger force?
Answer:
The larger piston
Explanation:
(i just took the same test)
If a proton is added to the nucleus of germaium what out comes would acure
A central atom is found to have one double bond, one single bond, and one non-bonding pair of electrons. how many electron domains does the central atom have?
Answer:
A central atom is found to have one double bond, one single bond, and one non-bonding pair of electrons
wants to help?
it's agriculture science not chemistry
Answer:
the jamaians need food to survive
Explanation:
how much mass is in a proton
Answer:
1.673 x 10^-27 kg
Explanation:
Question 4 (2 points)
(02.04 MC)
Jackson is making dinner and is trying to dissolve salt into a pot of water. The salt is dissolving slowly. What should Jackson do to speed up the
rate of dissolving? (2 points)
O.
Ob
Oc
He should put larger salt particles in the water.
He should hear the water to a higher temperature.
He should completely stop stirring the pot of water.
He should slow down the speed he is stirring the pot
Od
Question 5 (2 points)
(02.04 MC
ribed below
Answer:
B. He should heat the water to a higher temperature.
Explanation:
Tiny particles that make up water and salt vibrate at higher speeds in hotter temperatures, which mixes the salt and water faster. This causes salt to dissolve much faster.
If you weighed the atoms that appear on the reactant side of the equation, would they have the same mass as the atoms that appear on the product side?
Answer:
Yes,they will have the same mass.
Explanation:
According to law of conservation of mass:
'Mass can neither be destroyed nor be created during a chemical reaction'
In a balanced chemical reaction :
Total numbers of atoms on the reactants side are always equal to the total numbers of atoms on the product side.
Total mass of the atoms on the reactant side of the equation is always equal to the total mass of atoms on the product side.
For example:
Number of atoms on reactant side =
=(2)2 Hydrogen atoms + (1)2 Oxygen atoms = 6 atoms
Number of atoms on the product side =
=(2)((2 Hydrogen atoms) + (1 Oxygen atoms)) = 6 atoms
Mass of of reactants = (2)(number of hydrogen atoms)(mass of hydrogen atom) + (1)(number of oxygen atoms)(mass of oxygen atoms)
= (2)(2)(1u)+(1)(2)(16u) = 36u
Mass of products = 2((number of hydrogen atoms)(mass of hydrogen atom)+(number of oxygen atoms)(mass of oxygen atom))
= 2((2)(1u)+(1)(16u)) = 36u
Mass of of reactants = Mass of products = 36u
how many barr bodies are found in a normal human female nucleus
Answer:
One Barr body
Explanation:
is there a pattern in how one can predict how many covalent bonds an atom will form?
Answer:
In molecules, there is a pattern to the number of covalent bonds that different atoms can form. Each block with a number indicates the number of covalent bonds formed by that atom in neutral compound
Explanation:
I don't really know the answer sorry
What chemical compound is produced as a result of photosynthesis?
a
Answer: Specifically, plants use energy from sunlight to react carbon dioxide and water to produce sugar (glucose) and oxygen.
Explanation:
Viết các phương trình phản ứng dưới dạng phân tửvà ion thu gọn trong các trường hợp sau đây:a)CaCl2+ K2CO3b)Zn(OH)2+ KOH
who is considered the father of the periodic table
Answer:
Dmitri Mendeleev
Explanation:
Someone pls help me I will make you brain
Answer:
the answer is A for this question
Which statement correctly compares ice and liquid water?
A. Both liquid water and ice have definite shapes.
B. Particles of liquid water have more energy than particles of ice.
C. Liquid water has a lower temperature than ice.
D. Ice has a definite volume, but liquid water does not.
Answer:
B. Particles of liquid water have more energy than particles of ice.
Explanation:
We can work this out through eliminating the wrong statements.
A. Both liquid water and ice have definite shapes.
This is wrong because, as stated in the question, water is a liquid, and one of the properties of liquids is that they change shape to fit the shape of their container. If it changes shape, it does not have a "definite" shape.
B. Particles of liquid water have more energy than particles of ice.
This is correct, and here is why. There are 3 states of matter: solid, liquid and gas. As you apply heat energy to an object at each state, the particles receive more energy and can move around more (this is kinetic energy). In the case of liquid (water) and solid (ice), particles in solids do not have much energy and stay in rigid formations. They do vibrate slightly, but only on the spot (this is what gives solids "definite" shapes). On the other hand, particles in liquids have more energy than particles in solids, which means that they can move more (more kinetic ENERGY) and do not stay in formations (this is why they do not have "definite" shapes). Therefore, particles in liquids (water) have more energy than particles in solids (ice), and this statement is correct.
C. Liquid water has a lower temperature than ice.
This is wrong because liquids have more energy than solids. As explained earlier, the reason why particles in liquids have more energy is because more HEAT energy has been applied to them. In the same way, solids have less energy because less HEAT energy has been applied to them. Less heat means a lower temperature. (Also you can use common sense for this one, ice feels colder than liquid water, right?)
D. Ice has a definite volume, but liquid water does not.
This is wrong because of the law of conservation of mass. This law states that particles (or matter or volume) cannot be created or destroyed. When ice melts and becomes liquid water, it has not lost volume: the particles have just gained more energy. This question is most likely there to confuse you, because all substances have definite volumes.
I hope this helps!
A 1.044 g sample contains only vitamin C (C6H8O6) and sucralose (C12H19Cl3O8). When the sample is dissolved in water to a total volume of 33.0 mL, the osmotic pressure of the solution is 3.69 atm at 295 K. What is the mass percent of vitamin C and sucralose in the sample?
Answer:
Refer the attachment for answer..
hope it helps you..
What is the v if = 8 m and f = 20 Hz?
Answer:
Explanation:
it is 980
Anyone wanna have fun? gvk psad wsq
Answer:
Nope im cool to sleep right now
Explanation:
Heat packs are used to relax muscles. Some heat packs contain iron in a small packet. To
activate this type of heat pack, you need to increase the pressure and introduce oxygen
to create iron(III) oxide which produces the heat needed for muscles to relax. This
reaction in an example of what type of reaction?
Heat packs are used to relax muscles. This reaction is an example of exothermic reaction.
What is exothermic reaction?Exothermic reaction is defined as a reaction that is chemical in nature and is characterized by the release of energy in the form of heat and light.
It can also be defined as a thermodynamic process or reaction that releases energy from system to its surroundings.
Endothermic reaction is defined as the chemical reaction in which the reactants absorbs heat energy from the surroundings to form product.
Endothermic reaction can also be defined as a reaction in which the system absorbs energy from its surroundings in the form of heat.
Being endothermic enables us to live in cooler environments and regulate our body temperatures in order to fight infection.
Thus, heat packs are used to relax muscles. This reaction is an example of exothermic reaction.
To learn more about exothermic reaction, refer to the link below:
https://brainly.com/question/10373907
#SPJ5