Answer:
c. Ca3N2
Explanation:
Define compound in your own words
Answer:
I think the compound is a chemical bound the compound o cant say I trying
Explanation:
oh the compound is a chemical substance like atoms like H2O and other atoms they have many compounds I think this should be ans
if its ans is too long you want then tell me in comment
help plz! What chemical makes an object give off light?
Answer:
Its Chemiluminescence makes things glow by creating a chemical reaction.The electrons within the object become excited because of the reaction between two chemicals, and the electrons give off energy by blowing.
Maybe this helps I'm sorry if I got your answer wrong..
Question 21
2 pts
(02.04 MC)
How does a change in temperature affect the rate at which a lollipop dissolves in water? (2
points)
O Changing the temperature of water should have no effect on the rate at which the lollipop dissolves.
O Decreasing the temperature of water increases the surface area of the lolipop, making it more
O Increasing the temperature of water decreases the rate at which the lollipop dissolves.
O Increasing the temperature of water increases the speed at which the lollipop dissolves.
soluble.
draw the condensed formula of 2 - methyl pentane - 1 ol ?
Answer:
Hope this helped!
What occurs when a solid substance dissolves into a liquid?
A. It stays solid and floats on the top of the liquid substance.
B. It changes the liquid substance into a solid substance.
C. It breaks down and becomes part of the liquid substance.
D. It stays solid and sinks to the bottom of the liquid substance.
Answer:
It stays solid and sinks to the bottom of the liquid substance.
The type of chemical bond resulting from a complete electron transfer is:
metallic
covalent
radical
ionic
Answer:
ionic / electrovalent bonds
Explanation:
Answer:
4. Ionic
Explanation:
A. 207 kJ
B. 4730 kJ
C. 9460 kJ
D. 414 kJ
Answer:
C = 9460 Kj
Explanation:
Given data:
Mass of copper = 2kg
Latent heat of vaporization = 4730 Kj/Kg
Energy required to vaporize 2kg copper = ?
Solution:
Equation
Q= mLvap
by putting values,
Q= 2kg × 4730 Kj/Kg
Q = 9460 Kj
9. A family is driving to a nearby city. If they travel an average 68 miles per hour for 3.2 hours how
many miles have they gone?
All you have to do is multiply 68 miles and 3.2 hours. It will give you the answer, 217.6 mph.
68x3.2=217.6 miles per hour.
True or False. Frogs have to drink a lot of water.
Answer:
frogs do require alot of water, although they do not drink it, they absorb it through their skin.
Explanation: so, it is false.
What is this graph showing?
Explanation:
It's a distance-time graph showing the speed of an object
During all chemical reactions, charge, mass and energy are
(A) Condensed
(B) Conserved
(C) Decayed
(D) Decomposed
Answer:
(B) Conserved
Explanation:
Based on what you have read, write two to three sentences explaining what James Cross Giblin probably wants readers to think about people who focus on difficult goals.
It didnt give me anything to read either
Answer:
Explanation:
The message of the book is that perseverance is necessary for success. If we focus on our goals and learn from others, we will be rewarded in the end.
It's a reap what you sow kind of meaning as well in which perseverance is key for accomplishing our goals.
Answer:
The message of the book is that perseverance is necessary for success. If we focus on our goals and learn from others, we will be rewarded in the end.
Explanation:
this is the answer frm edge
Which reaction is reversible and could reach dynamic equilibrium?
O A. Burning a wood log
O B. Frying an egg
O C. 3H2 + N2 = 2NH3
O D. 2Mg + 02 → 2Mgo
Answer:
The correct answer is - option C. 3H2 + N2 = 2NH3
Explanation:
If in a chemical reaction the rate of the forward reaction and the rate of reverse reaction are equal, this is called dynamic equilibrium. Due to this equal rate of both side reactions, there is no change in the system. In this type of reaction, the concentration of reactants and products remain constant and the overall reaction is continuous.
Dynamic reactions can be reached by reversible reactions such as 3H2 + N2 = 2NH3 where the concentration of hydrogen and nitrogen and concentration of the ammonia remains constant and rate of the both side are equal.
Answer:
3H2 + N2 = 2NH3
Explanation:
37. An atom is electrically neutral because the
(1) number of protons equals the
number of electrons
(2) number of protons equals the
number of neutrons
(3) ratio of the number of neutrons
to the number of electrons is 1:1
(4) ratio of the number of neutrons
to the number of protons is 2:1 37
Answer:
(1) number of protons equals the
number of electrons
Explanation:
Which of the following elements is a metalloid?
A. Silicon
B. Sulfur
C. Neon
D. Nitrogen
Answer:
A. Silicon
Explanation:
Henry sees a basketball and decides to put in motion. What kind of force does Henry
use to move the ball?
Answer:
Unbalanced Energy
Explanation:
:p
could someone please put these examples in groups of which is kinetic energy and which is potential energy I WILL PUT YOU BRAINLIEST ;)))
Answer:
Potential: slingshot, baseball, grasshopper, cliff diver everything else is kinetic
Explanation:
Answer:
slingshot- potential
bobsled- kinetic
grasshopper-potential
swing- potential
cliff diver- potential
baseball- potential
satellite- kinetic
sky diver- kinetic
basketball- potential
arrow- kinetic
Explanation:
:)
what is the formula for Octasilicon triskaidecaphosphide
Answer:
Triskaidekaphobia, or fear of the number 13, does not fit neatly into a clinical definition of a specific phobia. The number 13 is not an object or a situation, and it can be impossible for the sufferer to avoid.
Explanation:
plssssssssssssssssss helpppppppppppp its due today but i don't get it plsss help ill give brainliesttttttttt
Which of the following could be a characteristic of the fossil that is most closely related to humans?
S-shaped back bone
Arms longer than legs
Water-dwelling
Tree-dwelling
in which shell duplet rule is applied, why?
Answer:
In first shell duplet rule is applied because first shell contains maximum 2 electrons
Explanation:
AFTER the digestive system process food, the energy stored in cells as ______________ .
radiant energy
mechanical energy
thermal energy
chemical energy
mass is the amount of
Answer:
Mass is a measure of the amount of matter in a substance or an object
Explanation:
we learned about this on school
not sure on this, REALLY NEED IT! FOR A HUGE GRADE!!! PLEASEEEE!!! ❤️
Answer: its D
Explanation:
because the earth sun and moon are all lined up that will cause a solar eclipse.
Calculate the mass of 12.3 moles of MgSO4.
Answer:
614 034 kg
Explanation:
n = m/Mm
m = n * Mm
Mm(MgSO4) = 1 * 24.3 * 1 * 32.1 * 4 * 16 = 49921.92
m = 12.3 * 49921.92
m = 614 034 kg
Chemistry guys help me it’s urgent
Please help ( there was no science option for subject)
This is due in a little while
Answer:
1 solar system, 2 , 3 , 4 hotter, 5 star, 6 the sun, 7 rotated, 8 planets, 9 orbits, 10 direction, 11 gravity, 12 revolve, 13 Mercury, 14 Neptune
Explanation:
I very sorry for not filling in everything but I have a small trick for you to help you out. So if you read out loud each sentence and put one of the words from the word bank in the sentence only a few will make sense. So if you read the second sentence out loud with one of the words that you have and one of them sounds correct then you fill it in. Also like your paper says one word can be used multiple times.
Your welcome :)
what causes atoms to react with each other?
a. a state change
b. a chemical equation
c. a physical change
d. a chemical reaction
Answer:
You are right, it's D
A chemical Reaction causes atoms to react with each other. Hence Option (D) is correct.
What is Chemical Reaction ?
A process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.
Therefore, A chemical Reaction causes atoms to react with each other. Hence Option (D) is correct.
Learn more about chemical reaction here ;
https://brainly.com/question/3461108
#SPJ2
How much energy is required to vaporize 18.32 grams of water at its boiling point?
The metal grill of the barbecue is made of steel. Six properties of steel are given below. Which properties are needed for the metal grill?
Answer:
It is rigid.
It has a very high melting point.
Explanation:
It conducts electricity. It is rigid. It has a very high melting point. It is magnetic. It is shiny. It rusts.The two properties that are needed for the metal grill out of the options are its rigidity and high melting point.
The rigidity of the metal grill will enable it to hold materials to be grilled without problems while the high melting point will enable the grill to remain intact at the high temperature required for the successful grilling of certain food materials.
ANSWER THE QUESTION BELOW FOR BRAINLEST AND 10 POINTS
Answer:
C
Explanation:
It just is, if you look online and conduct research you will see that compounds look just like number 3. It cannot be A or B.
