Answer:
-150 kj
Explanation:
follow me on insta bbyspot
Balance the following equations:
1. __H2 + __N2 → __NH3
Answer:
3H2 + N2 → 2NH3
Explanation:
3H2 + 1N2 → 2NH3
Or
3H2 + N2 → 2NH3
Explanation:
✰ [tex] \underline{ \large{ \text{Given \: chemical \: equation : }}}[/tex]
[tex] \tt{H_{2 } + N_{2} \longrightarrow \: NH_{3}}[/tex]Here , Multiply H₂ by 3 on left hand side and H₃ by 2 on right hand side to equalize hydrogen atoms.
[tex] \large{ \tt{ \underline{3}H_{2} + \underline{ 1}N_{2} \longrightarrow \: \underline2NH_{3}}}[/tex]
Here , We have 6 hydrogen atoms in both sides. How about Nitrogen atoms? We have 2 Nitrogen atoms in both sides. And yippie !! We got the balanced equation where both the hydrogen and nitrogen atoms are equal.
Hope I helped ! ♡
Have a wonderful day / night ! ツ
# [tex] \underbrace{ \tt{Carry \: On \: Learning}}[/tex] !!
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
6.022 x 10^23 atoms of calcium.
What is the mass?
Answer:
(6.02214179×1023) / one mole of substance. How many atoms are in a 3.0 g sample of sodium (Na)?
Explanation:
Answer:
Explanation:
Mass is 1.000
Which of the following is NOT an example of a change of state? *
HELP PLSSSSSS
Plants using photosynthesis to produce food.
Liquid water in perspiration changes to a gas when it evaporates.
An ice cream cone melts, forming a liquid.
Answer:
Plants using photosynthesis to produce food.
Answer:
the icecream one is not an example
each year, one person in north america uses resources equal to how much land? A. 12 miles B. 12 acres C. 120 acres
*2Al(OH), + 3H,SO, Al(SO4)2 + 6H2O
reaction type
Which term describes the composition of matter shown in Figure E?
Answer:
Figure E is a compound
Explanation:
Compounds are constructed of 2 different elements
Which has a lower electronegativity and why? N or P? Use 'force of attraction' in your answer
Answer:
The electron sets divided among two particles are not really shared similarly. For instance, while the common electron sets are shared similarly in the covalent security in Cl2, in NaCl the 3s electron is taken from the Na iota and is fused into the electronic design of the Cl molecule - and the compound is most precisely portrayed as comprising of individual Na+ and Cl− particles (ionic holding). For most covalent substances, their bond character falls between these two limits. We showed beneath, the bond extremity is a helpful idea for portraying the sharing of electrons between molecules inside a covalent bond:
A nonpolar covalent bond is one in which the electrons are shared similarly between two particles.
A polar covalent bond is one in which one iota has a more noteworthy fascination for the electrons than the other molecule. On the off chance that this overall fascination is sufficiently incredible, the bond is an ionic bond.
Explanation:
How to balance this equation
Answer:
2Al + 3Ni(SO4) -------> 1Al2(SO4)3 + 2Ni
Explanation:
Based on Avogadro's principle, the coefficients in chemical equations involving only gases represent two types of quantities. Name the two quantities.
Answer:
subject
Chemistry, 08.04.2020 04:39 dnprops1544
Based on Avogadro's principle, the coefficients in chemical equations involving only gases
represent two types of quantities. Name the two quantities.
Explanation:
Answer: Molar ratio is the quantity which will correctly convert between two different substances.
Answer: Option B
Explanation:
Molar ratio is used to determine the number of moles of reactants required to convert to desired number of moles of the products and vice versa. As moles are the coefficient written in any chemical equation. The ratio of the number of moles of the reactants to the number of moles of the products will help to determine the molar ratio.
This molar ratio is used as the conversion factor to determine number of moles required in the reactant side for the reactants to form a desired product of desired moles. We can also determine the number of moles utilized from the reactants from the moles obtained in the products using this molar ratio conversion factor.
Which of the following elements has the lowest normal boiling point? 4 points A. Ne B. He C. Ar D. Kr
Answer:
B. He
Explanation:
Which of the following reactions is single replacement?
The coefficients that balance the following equation NaCl + MgBr2 →→ MgCl2 + NaBr are
how hot is a supergiant star compared to our sun also the size
Answer:
Stars several times more massive then the sun have a simpler, quicker, and more spectacular evolutionary sequence. Because super giants are so massive, the core temperature gets much hotter than in giants, so supergiants can fuse elements heavier than hydrogen and helium.
Answer:
supergiant stars can have masses from 10 to 70 times greater than our sun, and when it comes to Brightness, some of them can be 30,000 times brighter than our sun. the temperature range of supergiant stars spans from around 3,450k to 20,000k.
How many Proton, Neutrons, and
Electron does 35^Cl have?
Answer:
17 electrons, 17 protons and 18 neutrons
Explanation:
35-Chlorine has 17 Protons, and 18 Neutrons in its Nucleus.
Is getting sunburnt after being at the beach all day a convection, conduction, or radiation?
Answer:
radiation because heat is being transferred
Answer:
It is ultraviolet radiation, which is going to be radiation.
Explanation:
When ultraviolet radiation from the sun reaches the skin, it damages the skin cells and causes mutations in their DNA.
Increasing the temperature of the water will increase the amount of salt that it can dissolve.
True
False
answer:
true, increasing the temperature does increase the amount of salt it can dissolve. however that would also be considered oversaturated if there is too much salt.
What would happen if MgCl2 were added to water?
Select one:
a.It would not ionize at all
b.It would dissolve
c.It would partially ionize
d.It would completely ionize
Answer:
opstion b
Explanation:
mark me as brainlest
It would dissolve. Hence, option B is correct.
What are mixtures?A mixture is composed of one or more pure substances in varying
compositions.
Solid magnesium chloride is a poor conductor of electricity because the ions aren't free to move. It undergoes electrolysis when the ions become free and molten state.
Magnesium chloride dissolves in water to give a faintly acidic solution.
Hence, option B is correct.
Learn more about mixtures here:
brainly.com/question/12160179
#SPJ5
When the Hubble Space Telescope was first launched, it was the most advanced technology of its kind. Astronomers and astrophysicists all over the world celebrated its launch. Why was this event so important to these scientists?
1. Hubble provided a new way to study Earth's atmosphere.
2. Hubble proved that we could launch a telescope into space.
3. Hubble provided scientists with data about the Universe they had previously been unable to collect.
4. Hubble was able to collect physical samples from celestial bodies they had previously been unable to reach.
please help me
Answer:
C
Explanation:
its correct
''Hubble provided scientists with data about the Universe they had previously been unable to collect.'' is the right statement.
Benefits of Hubble Space TelescopeHubble Space Telescope helps the scientists to collect more data about the Universe which they had previously been unable to collect due to lower range of telescope.
This telescope has longer range and can see distant objects very clearly in the space so we can conclude that ''Hubble provided scientists with data about the Universe they had previously been unable to collect.'' is the correct statement.
Learn more about telescope here: https://brainly.com/question/18300677
in the single replacement reaction AB + C → A + CB, the anion in the reactant compound AB is _______
Answer:
The anion is B.
Explanation:
Compounds are usually written as [cation][anion], and the positive charge of the cation (A) will cancel out the negative charge of the anion (B). We are reaffirmed of our answer by the product CB, which also has B as an anion.
Answer:
B
Explanation:
A large piece of iron was reacted with an acid. What would happen to the rate of the reaction had the large piece been finely divided into smaller pieces? (1 point)
It will decrease because the reactant particles are moved farther apart.
It will increase because the reactant particles are brought closer together.
It will decrease because larger particles provide more surface area to react.
It will increase because smaller particles provide more surface area to react.
Answer:
D: It will increase because smaller particles provide more surface area to react.
Explanation:
When the large iron is broken up into smaller pieces, there are more places for the iron to react (meaning there's more surface area). Think of it like taking the surface area of a big cube compared to the surface area of a bunch of small cubes. The sum of the surface areas of the small cubes will be greater than that of the large cube. As a result, more places for the iron to react will cause for a greater reaction.
Answer: D It will increase because smaller particles provide more surface area to react.
a tennis ball travels the length of rhe court, 24 m, in 0.5 s. Find its average speed
Answer:
48m/s
Explanation:
Which statements describe the motion of the object represented by the graph? Select three options.
The object is moving away from the origin.
The object is moving towards the origin.
The object started at the origin.
The object started at 2 meters.
The object is traveling at a constant velocity.
Answer:
The object is moving away from the origin
The object started at 2 meters
The object is traveling at a constant velocity
Explanation:
Statements which best describe motion of object represented by graph are statement A,D and E.
What is motion?Motion is defined as a phenomenon which is described with respect to change in object's position with respect to time.It is given in terms of displacement,velocity,distance ,acceleration,speed.
Branch of physics which deals with motion of objects without any reference to it's cause is called kinematics while the branch which studies forces and their effects on motion is called as dynamics.
Motion applies to various systems like objects,bodies, matter particles ,radiation ,curvature.There are three laws of motion which are proposed by Newton.Classical mechanics is based on Newton's law of motion.Relativistic mechanics is based on modern kinematics.
Learn more about motion,here:
https://brainly.com/question/3421105
#SPJ6
5.18 m x 0.77 m x 10.22 m
3
Answer:
5.18 m x 0.77 m x 10.22 m3 = 40.763492 m^5
brainlist please!
11. How many elements do all the "P" orbital span (go across) in each period? (circle your answer)
a) 2
b) 6
c) 10
d) 14
Answer: B
can u pls give me brain list?
Story that ends in i have never found such a kind person ever since
Answer:
I was traveling on a train where I fell asleep. someone stole my luggage in which I had money and other essentials. when the ticket checker arrived a lady paid my fine. she helped me a lot. when I told her about being robbed she helped me and took me to the police station and I found my bag. I insisted she take the money she paid for my fine but she said that in return you too help someone."I have never found such a kind person ever since.".....
Explanation: I think this is what you are looking for. Hope this helps.
what is 54-34+87x56
How is everyone on this beautiful day?
Also if u need to hear that someone loves u i do even if i don't know u
Answer:
5,992
Explanation:
and thank you! ♥
Put the rules in order, first rule up top.
FIRST RULE
= Balance Oxygen
= Write down the elements
= Balance Hydrogen
= Balance non-metals
Balance metals
Answer:
Write down the elementsBalance MetalsBalance Non- metalsBalance OxygenBalance Hydrogen.Work = Force X Distance A dog pulls a ball with 5N of force for 4 m. How
much work did the dog do?*
Answer:
W = 20 J
Explanation:
Given that,
The force acting on the dog, F = 5 N
Distance covered, d = 4 m
We need to find the work done by the dog. The work done by an object is given by :
W = Fd
Put all the values,
W = 5 N × 4 m
W = 20 J
So, 20 J of work is done by the dog.
Help pretty please jdjsmsjsj
Answer:
less metallic
Explanation:
Answer:
D; Decrease in atomic mass.
Explanation:
I looked at the periodic table.
What is the correct formula for the compound formed by Mg and F?
MgF
Mg2F
Mg2+F
MgF2
Look at picture
ASAP please will mark as brainlist don’t got much time
Magnesium phosphate
Find Similar Structures
Molecular Formula
Mg3(PO4)2 or Mg3O8P2
Synonyms
magnesium phosphate
More...
Molecular Weight
262.86 g/mol