Answers
Answer:a+b
Explanation:
Related Questions
A reversible reaction is a reaction that takes place in the ___________________
. If the reaction were to _________________, the rate of the forward reaction would equal that of the reverse reaction.
Answers
Answer:
A reversible Reaction is a reaction that takes place in the (Reactants)
If the reaction Were to (Equal), the rate of the forward reaction would equal that of the reverse reaction
Explanation:
A reversible reaction is a reaction that takes place in the both direction.
If the reaction were to equilibrium, the rate of the forward reaction would equal that of the reverse reaction.
What is reversible reaction?A reversible reaction can be identified as one in which the reactants, , as well as products, react together to return the reactants to their previous form.
What is equilibrium?The phase of chemical equilibrium occurs if both reactants, as well as products, products, are occupied in concentrations that do not alter with time.
Therefore, A reversible reaction is a reaction that takes place in the both direction. If the reaction were to equilibrium, the rate of the forward reaction would equal that of the reverse reaction.
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Paragraph 2 discusses two different types of thermochemical reactions. In one type of
reaction, the enthalpy term is located on the reactant side of the equation. Which type of
reaction is this?
Answers
Answer: The reaction is endothermic.
Explanation:
Endothermic reaction : It is a type of chemical reaction where the energy is absorbed from the surrounding. In the endothermic reaction, the reactant have less energy than the energy of products
In endothermic reaction, enthalpy terms is located on the reactant side.
Example: [tex]A+B+energy\rightarrow C+D[/tex]
Exothermic reaction : It is a type of chemical reaction where the energy is released into the surrounding. In the exothermic reaction, the energy of reactants are more than the energy of products
In exothermic reaction, enthalpy terms is located on the product side.
Example: [tex]A+B\rightarrow C+D+energy[/tex]
To find the volume of a ring, the water displacement method was used.
What is the volume of the ring with correct significant figures?
Answers
Answer:
4 cm³?
Explanation:
68-64
Explain in your own words. What does DNA mean?
Answers
Answer:
DNA aka deoxyribonucleic acid is a molecule in cells that holds genetic information. Their main job is to tell the cell what type of protein to make. The other instructions they hold for the organism is instructions on how to develop, survive and reproduce.
Explanation:
DNA is the genetic material made of two polynucleotide chains that coil around one another to create a double helix is called deoxyribonucleic acid (DNA).
All known organisms and many viruses have genetic information in the polymer that is necessary for their development, operation, growth, and reproduction. Nucleic acids include ribonucleic acid and DNA.
DNA is the genetic material found inside bodily cells that contribute to an individual's unique genetic makeup. Similar to the game's code or a home's blueprints, it contains the directions for creating the body.
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Select all the element(s) from the periodic table shown that will form an ionic compound with a metal M and a nonmetal X and a formula unit of M3X2
Answers
Answer:
Sulfate- SO4^2-Sulfite- SO3^2-Permanganate- MnO4Carbonate- CO3^2Explanation:
CARRY ON LEARNING.
The elements in the periodic table that can form an ionic compound with a metal M and a nonmetal X with a formula unit of M3X2 are elements of group 2 and group 15.
The elements of group 2 are metals that have a valency of 2 while the elements of group 15 are nonmetals that have a valency of 3. This means that a compound formed between elements of group 2 and group 15 will be ionic with the formula unit M3X2.
The elements of group 2 are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra) while the elements of group 15 are nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb) and bismuth (Bi).
These elements listed above can combine with each other to form ionic compounds of formula unit M3X2. A typical example of this is Mg3N2.
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why does decane have a higher boiling point than acetone
Answers
WILL VOTE BEST & GIVE 20 POINTS
When completing your laboratory experiment, you placed 25.00 g of copper in the
graduated cylinder. Then you noticed the water level mark was filled to 50.0 ml. The total
mass of all the components is 58.80g. Know that the density of water is 1.0 g/ml, calculate
the density of this iron sample. Show all work.
Answers
Answer:
58.80/50= 2.352
Explanation:
kk
During an experiment, four different elements were added to water and observed. Element C showed no reaction. The other three elements bubbled, with Element D bubbling with the greatest vigor and Element A bubbling the least. Which list orders the elements from least reactive with water to most reactive with water?
Answers
Answer:
In order most reactive to least reactive:
D
B
A
C
Explanation:
The reactivity series is depend on the element that reacts with the oxygen. The metal which replaces the other metal is a more reactive metal.
In the question, there are different metals and we have to find the reactivity series of the unknown metal
The series in decreasing order is as:- D > B > A > C.
In this reaction, the upper element replaces the lower elements because it is highly reactive.
Hence, the correct sequence is D > B > A > C.
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A cold can of soda is taken out of the refrigerator. It slowly warms up until it is at room temperature. Once the soda has warms up, it has more thermal energy than it had in the refrigerator. Where did this additional thermal energy come from?
Answers
Answer:
See explanation
Explanation:
We know that the thermal energy of a substance largely depends on the temperature of the body. This implies that the hotter a substance is, the greater its thermal energy and vice versa.
When you bring a cold can of soda out of the refrigerator, the molecules of air at room temperature gradually loose energy to the can and condense around it. This transfers thermal energy from the air particles to the molecules in the cold can of soda and the soda warms up pretty soon!
A piece of substance Z is heated directly and it is found that 5805 Joules of energy are needed to raise the temperature of the substance from 25.0C to 35.0C. The specific heat of substance Z is known to be 1.28 J/gc. What was the mass in grams of this piece of substance Z?
Answers
Answer:
10.0 should be your answer
Explanation:
I have had this before unless of course they changed it
How do most cells in your body sense their surroundings?
O they touch things
O they see things
they smell things
they hear things
O all these answers are correct
Answers
can you help me with this i don't think it is that hard i just have a lot on my mind.
Answers
Answer:
Global wind
Explanation:
The jet streams go around the whole earth from west to east
Hope you have a good day :)
(this is due tonight)
Give a real life example of something that is measured in velocity units.
Answers
Answer:
Velocity of a satellite around the earth.
Velocity of a car while driving.
Explanation:
When phosphorus forms ions, they have a charge of
Answers
Explanation:
When phosphorus forms ions, they have a charge of 4+
Hope it helps you
...
A 32.14 gram sample of a hydrate of MnSO4 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, 17.51 grams of the dehydrated compound remained. What is the formula of the hydrate?
Answers
Answer:
MnSO₄.7H₂O
Explanation:
To solve this question, we need to convert the mass of the dehydrated MnSO₄. The difference between mass of the hydrate and dehydrated compound is the mass of water. With the mass we can find the moles of water and the formula of the hydrate:
Moles MnSO₄ -Molar mass: 151g/mol-:
17.51g * (1mol / 151g) = 0.116 moles
Moles H₂O -Molar mass: 18g/mol-:
32.14g-17.51g = 14.63g * (1mol / 18g) = 0.813 moles
The ratio of moles MnSO₄: Moles H₂O represent the amount of water molecules in the hydrate:
0.813mol / 0.116mol = 7 molecules of water.
The hydrate formula is:
MnSO₄.7H₂OHow would adding the catalyst nitrogen monoxide (NO) affect this reaction?
2SO2(g) + O2(g) → 2SO3(g)
A.
NO increases the rate at which SO3 molecules are formed.
B.
NO reacts with SO3 to produce more SO2 molecules.
C.
NO decreases collisions between the SO2 and O2 molecules.
D.
NO increases the concentration of the SO2 and O2 molecules.
E.
NO increases the activation energy of the SO2 and O2 molecules.
Answers
Answer:
Explanation: It would be option A
Answer:
The Correct Answer is A
Explanation:
The rate increases.
On the periodic table, all of the cards in each row (across) have the same what?
Answers
Why is it important to plants and animals that photosynthesis occurs?
Answers
Question 3 of 10
What is thermodynamics?
O A. The study of the transfer of hot and cold energy
B. The study of the movement of energy and heat
C. The study of kinetic energy and potential energy
D. The study of the conservation of matter and energy
Answers
Answer:
B
Explanation:
the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy), and, by extension, of the relationships between all forms of energy.
Answer:
B
Explanation:
two students performed an investigation
Answers
Answer:
what was the investigation ???
HELP!
A train travels 102 miles in 2 5/6 hours. What is its average speed in miles per hour?
Answers
Answer:
36miles/hour
Explanation:
speed =distance÷time taken
102miles/2 5/6
102÷17/6
102×6/17
=36miles per hour
How much heat must be added to raise a sample of 100.g of water at 270K to 280K?
Answers
Answer:
10 Kelvin
Explanation:
this is so simple...
if you want to raise the temp from 270K to 280K just add 10K
According to specific heat capacity, 4200 joules of heat must be added to raise a sample of 100.g of water at 270 K to 280 K.
What is specific heat capacity?Specific heat capacity is defined as the amount of energy required to raise the temperature of one gram of substance by one degree Celsius. It has units of calories or joules per gram per degree Celsius.
It varies with temperature and is different for each state of matter. Water in the liquid form has the highest specific heat capacity among all common substances .Specific heat capacity of a substance is infinite as it undergoes phase transition ,it is highest for gases and can rise if the gas is allowed to expand.
It is given by the formula ,
Q=mcΔT , on substitution of values on given formula, Q= 100×4.2×10=4200 Joules
Thus, 4200 joules of heat must be added to raise a sample of 100.g of water at 270 K to 280 K.
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I Need Help with this plz
Answers
Answer:
a
Explanation:
Help! The question is in the picture
Answers
Answer:
little l big l big l little l
Explanation:
can you help me Complete the following sentence: After we explained why we needed her in the play, she and joined our rehearsal A quaffed B. acquiesced C vengeance D. wreaked
How many grams are in 3.1 moles of aluminum oxide?
0.03g
316.08g
32.89g
Answers
Answer:
316.08g
How many moles Al2O3 in 1 grams? The answer is 0.0098076450122103. We assume you are converting between moles Al2O3 and gram. You can view more details on each measurement unit: molecular weight of Al2O3 or grams This compound is also known as Aluminium Oxide. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Al2O3, or 101.961276 grams. Note that rounding errors may occur, so always check the results.
An example of an abiotic factor that would strongly affect the population of water lilies in a pond?
Answers
Answer:
temperature, light or pH
Explanation:
Activity 7 Let's Think First
Directions: Below are possible situations during an earthquake. Encircle the letter of the appropriate action.
1. If you are outside of your house, move away from the buildings.
A. I will do it
B. I will just run anywhere.
2. If you are inside your house, get cover under a table.
A. I will do it
B. I will not do it
3. If you are in a moving car, what will you say to the driver?
A. Just keep driving.
B. Please stop.
4. Drop to the ground and protect your head.
A. I will do it
B. I will not think about it.
5. Prepare a disaster emergency kit beforehand.
A. I will do it
B. I will not do it.
Answers
2. a.
3. b.
4. a.
5. a.
What is an Isochron map
Answers
Answer:
An isochrone map in geography and urban planning is a map that depicts the area accessible from a point within a certain time threshold. An isochrone is defined as "a line drawn on a map connecting points at which something occurs or arrives at the same time".
Explanation:
Answer:
An isochrone (iso = equal, chrone = time) is defined as "a line drawn on a map connecting points at which something occurs or arrives at the same time". In hydrology and transportation planning isochrone maps are commonly used to depict areas of equal travel time.
Explanation:
BRAINLIEST plz
I NEED HELP :)
A train travels 76 miles in 1 7/12 hours. What is its average speed in miles per hour?
Answers
Answer:
48 mph
Explanation:
total time= 19/12 hr
distence- 76 miles
speed- D/T=76/19/12
which is 48mph
if my answer helps please mark as brainliest.
Answer:
pretty sure its average speed in miles per hour is 48
Explanation:
I just took 76 and divided it by 1 7/12 and got 48
The amplitude of a wave is the distance between a point on one wave and the identical point on the next wave T or F?
Answers
It is false that the amplitude of a wave is the distance between a point on one wave and the identical point on the next wave.
What is amplitude?The maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position, as defined in physics. It is one-half of the length of the vibration path.
The energy of the disturbance that causes the wave determines the amplitude of the wave. The amplitude of a wave caused by a more energetic disturbance is greater.
A wave's amplitude is the distance from the center line to the top of a crest or the bottom of a trough.
The amplitude of a wave is the height of the wave measured from its highest point to its lowest point. The length of a wave from one peak to the next is referred to as its wavelength.
Thus, the given statement is false, as the definition is of wavelength and not of amplitude.
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