Answer:
17 electrons, 17 protons and 18 neutrons
Explanation:
35-Chlorine has 17 Protons, and 18 Neutrons in its Nucleus.
What is the molecular formula of a compound with an empirical formula P2O5 and a gram-molecular mass of 284 grams? And why?
Day 2 code word
Options are
1. Chloroplast
2. Cytokinesis
3 cytoplasm
4. Meiosis
Answer:
chloroplast
Explanation:
Which best describes particles in a liquid?
more freely moving than a solid
completely stationary
more freely moving than a gas
Answer:
More freely moving than a solid
Explanation:
Describe two patterns in the periodic table?
Answer:
Patter 1: Ionization Energy Decreases going down a group
Pattern 2: Ions tend to gain/lose the least amount of electrons
Take oxygen, for example. Oxygen has 8 electrons. To become like a noble gas it could either gain two to become like neon or it could lose six to become like helium. So what will oxygen do—gain two or lose six? As a general rule, atoms will gain or lose the fewest number of electrons possible.
Explanation:
I am the life cycle that contains tiny undeveloped plants,
but I still have enough food for growth. Who am I?
Please help PLEASE
A tall plant (Tt) is crossed with a short plant (tt). What is the phenotype of the offspring?
Group of answer choices
100%
75% tall; 25% short
25% tall; 75% short
50% tall, 50% short
Does the atomic number of an element equal the number of neutrons in an atom of that element?
Answer:
no
Explanation:
the atomic number the just the number below the symbol of the element as well as proton number or electron number, however if u want to work out the neutron number you have do mass number (which is on the top of the symbol) substact atomic number/proton number
Beryllium oxide is heated.
What is the chemical reaction equation?
Answer:
BeO
Reaction of beryllium with air
However, powdered beryllium metal does burn in air to give a mixture of white beryllium oxide, BeO, and beryllium nitride, Be3N2. Beryllium oxide is more normally made by heating beryllium carbonate. 2Be(s) + O2(g) → 2BeO(s)
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.
Identify which is the result of a physical rather than
a chemical change?
Answer:
b
Explanation:
If 125 grams of KCIO3
decomposes completely,
how many moles of
oxygen gas is produced?
In a sealed container at constant pressure, the volume is 25L. When cooled down to 100K the volume decreases to 6.25L. What was the original temperature of the container? *
A. 50k
B. 100k
C.250k
D.400k
Which of the following reactions is single replacement?
pls help me!!!!
A.Ants and tarantulas
B.Rats and Snakes
C.Cacti and Sagebrush
D.Hawks and Coyotes
Answer:
C since both are plants which are the producers
Answer:
Cacti and Sage Brush
Explanation:
because they are plants so they produce food on their own
5N
12N
7N
HELP HELP
Answer:
Balanced
0N Stationary
Explanation:
One side = 5N + 7N = 12 N
Other side= 12 N
Equal newton so it's a balanced forced :
Balanced
0N Stationary
I hope i am understood and am right!
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:
Compare and contrast the Ionization energies of groups 1&2 (Alkali and Alkaline metals) with the Ionization energies of groups 16&17 (Oxygen family and Halogens)
Answer:
Ionization energy is the energy required to remove an electron from a specific atom. It is measured in kJ/mol, which is an energy unit, much like calories. The ionization energies associated with some elements are described in the Table 1. For any given atom, the outermost valence electrons will have lower ionization energies than the inner-shell kernel electrons. As more electrons are added to a nucleus, the outer electrons become shielded from the nucleus by the inner shell electrons. This is called electron shielding .
Explanation:
a little summary
Ionization energy refers to the amount of energy needed to remove an electron from an atom.
Ionization energy decreases as we go down a group.
Ionization energy increases from left to right across the periodic table.
BRAINLIEST!! PLS HELP!!
Answer:
b be aosum
Explanation:
2) Will all atoms behave exactly the same when the temperature is changed?
no...the atoms will not behave the same
as when temperature is increased, the atoms vibration and kinetic energy will also be increased....they come in excited state...
where as when temperature is reduced ,atoms kinetic energy slows down....
Vacuum-packaging food is an effective means for stopping the growth of bacteria.
true or false
Answer:
True
Explanation:
Vacuum packing is a method of packaging that removes air from the package before sealing. ... On a more short-term basis, vacuum packing can also be used to store fresh foods, such as vegetables, meats, and liquids, because it inhibits bacterial growth. Vacuum packing greatly reduces the bulk of non-food items.
What is acetic acid (CH3COOH)
Answer:
Acetic acid (CH3COOH), also called ethanoic acid, the most important of the carboxylic acids. A dilute (approximately 5 percent by volume) solution of acetic acid produced by fermentation and oxidation of natural carbohydrates is called vinegar; a salt, ester, or acylal of acetic acid is called acetate.
Answer:
the acid that gives vinegar its characteristic taste. The pure acid is a colourless viscous liquid or glassy solid.
Explanation:
HOPE IT HELPS YOU......
what is the definition of behavior?
Answer:
the definition of behavior is the way in which someone conducts oneself or behaves.
Answer:
the way in which one acts or conducts oneself, especially towards others.
For example
he will vouch for her good behaviour"
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
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Jeremy watched a high speed car chase in Germany, and overheard that the car travelled 85.0 km in 20.5 minutes, what was the average mph of that car??
Answer:
The correct answer is - 154.2 miles per hour.
Explanation:
The velocity of an object can be calculated by dividing the distance covered by the object in a unit of time. In the given question we know that car covers 85 kilometers of distance in 20.5 minutes.
We know: 1 km = 0.621371 miles
then, 85 km = 0.621371 × 85
= 52.81 miles
Then velocity will be:
= 52.81/20.5
= 2.57 miles/minute
converting miles/minute to miles/hour
= 2.57 × 60
= 154.2
How many molecules are in a 89.2 gram sample of carbon dioxide (CO2)
SHOW WORK
What volume of 9.0 M copper (II) sulfate stock solution is needed to prepare 3.0 L of a 5.0 M solution?
Answer:
The volume of 9.0 M copper (II) sulfate stock solution needed to prepare 3.0 L of a 5.0 M solution is 1.667 L
Explanation:
Dilution is a process by which the concentration of a solute in solution is reduced by adding more solvent.
In other words, dilution is the procedure followed to prepare a less concentrated solution from a more concentrated one, and it simply consists of adding more solvent.
In a dilution the amount of solute does not vary. What varies in a dilution is the volume of the solvent: as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.
The equation used in this case is:
Ci * Vi = Cf * Vf
where
Ci: initial concentration Vi: initial volume Cf: final concentration Vf: final volumeIn this case:
Ci: 9 M Vi: ? Cf: 5 M Vf: 3 LReplacing:
9 M*Vi= 5 M* 3 L
Solving:
[tex]Vi=\frac{5 M*3 L}{9 M}[/tex]
Vi= 1.667 L
The volume of 9.0 M copper (II) sulfate stock solution needed to prepare 3.0 L of a 5.0 M solution is 1.667 L
Explain the relationship between overpopulation and diminishing water supplies.
Answer:
if a place is overpopulated, they will use more water than they have.
Explanation:
pretty much the explanation right there
Answer:
Explanation:
As human populations grow they consume more water, not just by drinking, but through all of the other human activities that require freshwater such as agriculture, bathing, cleaning, etc. Overpopulation, therefore, can lead to overconsumption as populations use more water than an area can support and replenish sustainably.
When two clear substance combines, an insoluble solid is formed that settle downs as a
[tex] \huge \sf \underline \blue{Question} \colon[/tex]
When two clear substance combines, an insoluble solid is formed that settle downs as a ________.
[tex] \huge \sf \underline \blue{Answer} \colon[/tex]
When two clear substance combines, an insoluble solid is formed that settle downs as a precipitate.
→A precipitate is a substance to be deposited in solid form from a solution.
______________________________________
explain why there is a period of constant temperature during melting and freezing. use
Answer:
Because the heat energy provided at the moment of melting and freezing are used up in the transformation of the state of matter!!
Thus the temperature remains the same
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!