Can someone plz help me with this one problem plzzzzz!!!
Answer:
im gonna say A
Explanation:
i say A because i mean biotic potential is residing in the catagory birth rate which is how many the lay a year penguins have already reached the amount they are gonna lay robins the literally have no exact stop point its between 5 and 10 a year like said. so if u look at the amount they have each they have both reached there maximum point. but penguins only lay eggs once a year while robins well 5 to 10 reaching there maximum potential.
How many grams of NaCl can be dissolved in 100 grams of water at 70°C? What is its concentration? (20 pts.)
Answer:
70 g NaCl at 20 °C Supersaturated.
how far is pluto from jupiter
Pl help it’s for a grade
Answer: B. Potential energy
Explanation:
There are several form of potential energy including gravitational, magnetic, electrical, chemical and eleastic potential
Answer:
Potential Energy
Explanation:
Potential energy is stored energy and the energy of position.
Chemical, Gravitational, and Elastic are all stored energy and the energy of position.
Hope this helps!
:D
phcl2 lewis structure
Answer:
What do you want answered?
Explanation:
13.0 g of ammonium chloride in 500 g of water. What is the new BP? (NH,CI=53.491g/mol)
Answer:
hwjwjwkwjwnwnnwnw wiwjwjejejejeje
before you retire in the evening, you sit down for a snack of milk and cookies. when you waken in the morning, you discover a carton of sour milk on the counter. knowing that milk sours if left in the refrigerator too long, has the reaction rate increased or decreased for the carton of milk on the counter? what has happened to its reaction time
Answer:
Increased
Explanation:
We know that the higher the temperature the higher the rate of reaction. This implies that as the temperature is increased, a reaction tends to proceed faster.
This follows from the collision theory, the higher the temperature, the higher the energy of the reacting particles hence they collide with each other faster and more effectively.
Thus the rate of reaction( or reaction time) for the carton of milk on the counter was increased.
Yo I'm back fam.
Need some help while I go help other people
Answer:
12×8+14×3+31×2+16×4+1
96+52+62+48+1
259grams
Answer:
Do you want ro bux do you play ro blox i need your username and password
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Explanation:
Do you want ro bux do you play ro blox i need your username and password
100% no scam
please trust me ty if you do you get extra 5,000 k
What causes a sharp increase in potential energy when two
atoms approach more closely to one another then their ideal
bond distance?
A. Electrostatic repulsion between electron clouds
B. Gravitational force between the atoms
C. Electrostatic repulsion between nuclei
D. Electrostatic attraction between electrons and nuclei
Which is a compound?
sugar
air
nitrogen
sodium
air
because air is compound discoverd in 1992
that isssssss? (thank you whoever answers in advance)
Answer:
c
Explanation:
A pathogen or infectious agent is a biological agent that causes disease or illness to its host. The term is most often used for agents that disrupt the normal physiology of a multicellular animal or plant. However, pathogens can infect unicellular organisms from all of the biological kingdoms.
Answer:
Harmful to living organisms
Explanation:
tbh, quizzlet lol
PLSSSS HELP
this is science
Answer:
The answer is CExplanation:
when a car begins to slow down the speed that it was going will decrease. Which means that it is an example of deceleration.
Answer:
The answers would be : ( a car approaching a red light )
15 N .
F= m.a ----> 15 = 5.3
An alpha particle is composed of He2+ ions?
true or false
Answer: The given statement is False.
Explanation:
Alpha particle is a helium nuclei.
Alpha particles are produced when a larger nuclei decays into smaller nuclei in radioactive decay. Alpha particles have mass number and atomic number as 4 and 2 respectively.
General representation of alpha decay :
[tex]^A_Z\textrm{X}\rightarrow ^{A-4}_{Z-2}\textrm{Y}+^4_2\textrm{He}[/tex]
Thus the given statement that alpha particle is composed of [tex]He^{2+}[/tex] ions is False.
The statement of [tex]\rm He^2^+[/tex] ions has formed the alpha particles is true.
Alpha particles are particles that have been similar to the He-4, with the presence of two protons and two neutrons. The alpha particles have the absence of electrons and have been formed during the alpha decay.
[tex]\rm He^2^+[/tex] has been the ion of He with the positive charge indicating the loss of 2 electrons. Thus, in [tex]\rm He^2^+[/tex], there has been 2 protons, 2 neutrons, and 0 electrons.
The atomic configuration of [tex]\rm He^2^+[/tex]has been similar to the alpha particles. Thus, the statement stating, "the alpha particles to be composed of [tex]\rm He^2^+[/tex]ions " is True.
For more information about the alpha particles, refer to the link:
https://brainly.com/question/1685421
What phase is not part of mitosis and is where the cells spends most of its time
Answer:
interphase
Explanation:
they spend most time in interphase
What is a cone of depression and how is it caused?
Answer:
Depression can be caused by many things, like being neglected, abused, or even trauma. Even thoughts that might trigger sadness, or anxiety it's caused by alot of problems of your life or others around you
Explanation:
hope this helps a bit :)
2 K + Cl2 → 2 KCI
How many grams of KCI (74.55 g/mol) is produced from 2.50 mol of K?
Answer: 186.3 g of [tex]KCl[/tex] will be produced from 2.50 mol of K
Explanation:
The balanced chemical reaction is:
[tex]2K+Cl_2\rightarrow 2KCl[/tex]
According to stoichiometry :
2 moles of K produce = 2 moles of [tex]KCl[/tex]
Thus 2.50 moles of [tex]K[/tex] will produce=[tex]\frac{2}{2}\times 2.50=2.50moles[/tex] of [tex]KCl[/tex]
Mass of [tex]KCl=moles\times {\text {Molar mass}}=2.50moles\times 74.55g/mol=186.3g[/tex]
Thus 186.3 g of [tex]KCl[/tex] will be produced from 2.50 mol of K
In the reaction 2 FeBr3 + 3 Cl2 → 2 FeCl3 + 3 Br2, how many grams of bromine gas are produced from 2.50 moles of FeBr3?
Answer:
but iron is 2 and 3 by its valance how could it be possible
WILL GIVE BRAINLIEST
How much heat energy is absorbed when 94.0 g of water is heated from 5.0C to 29.5C? Show your work.
Answer:
In order to be able to solve this problem, you will need to know the value of water's specific heat, which is listed as
c=4.18Jg∘C
Now, let's assume that you don't know the equation that allows you to plug in your values and find how much heat would be needed to heat that much water by that many degrees Celsius.
Take a look at the specific heat of water. As you know, a substance's specific heat tells you how much heat is needed in order to increase the temperature of 1 g of that substance by 1∘C.
In water's case, you need to provide 4.18 J of heat per gram of water to increase its temperature by 1∘C.
What if you wanted to increase the temperature of 1 g of water by 2∘C ?
This will account for increasing the temperature of the first gram of the sample by n∘C, of the the second gramby n∘C, of the third gram by n∘C, and so on until you reach m grams of water.
And there you have it. The equation that describes all this will thus be
q=m⋅c⋅ΔT , where
q - heat absorbed
m - the mass of the sample
c - the specific heat of the substance
ΔT - the change in temperature, defined as final temperature minus initial temperature
In your case, you will have
q=100.0g⋅4.18Jg∘C⋅(50.0−25.0)∘C
q=10,450 J
Solid silicon and solid magnesium chloride form wen silicon tetrachloride gas reacts with magnesium meta. Write a word equation and an unbalanced formula equation including physical changes
Answer: Silicon tetrachloride (g) + Mg (s) [tex]\rightarrow[/tex] Silicon (s) + Magnesium chloride (s)
[tex]SiCl_4(g)+Mg(s)\rightarrow Si(s)+MgCl_2(s)[/tex]
Explanation:
The word equation for Solid silicon and solid magnesium chloride form wen silicon tetrachloride gas reacts with magnesium metal :
Silicon tetrachloride (g) + Mg (s) [tex]\rightarrow[/tex] Silicon (s) + Magnesium chloride (s)
The skeletal equation where law of conservation of mass is not followed will be:
[tex]SiCl_4(g)+Mg(s)\rightarrow Si(s)+MgCl_2(s)[/tex]
PLEASE HELP ASAP!!!!!!????
Answer:
The third one!
Magnesium hydroxide is added to a solution of hydrochloric acid. A reaction occurs and magnesium chloride and water are formed. Testing the _______ would show that a reaction has occurred.
Answer:Magnesium (Mg) is a - reactant
Hydrogen (H2) is a - product
magnesium chloride (MgCI2) is a - product
hydrochloric acid (HCI) is a - reactant
Explanation: It’s in my notes
Can someone plz help me with this one problem plz!!!
Answer:
I think it is C
Explanation:
I just do.
do all metallic oxides form alkaline solution???
Answer:
Nope not all
Explanation:
As scientists says that not all give a solution.
Using standard formation enthalpies, calculate the standard reaction enthalpy for this reaction. 6CO2(g) + 6H2O(l)C6H12O6 + 6O2(g) ANSWER: kJ/mol
Answer:
2802.5 KJ/mol
Explanation:
Calculate standard enthalpy of the Reaction :
6CO2(g) + 6H2O(l)C6H12O6 + 6O2(g)
using standard formation enthalpies . hence the standard enthalpy of the reaction = 2802.5 KJ/mol
attached below is the detailed solution
Consider the following reaction occurring in a 1.0 L container:
H2 (g) + I2 (g) → 2 HI (g)
State 2 requirements for a successful collision between H2 and I2.
Answer:
jjjjajwhejwhswjiwiwvssvwvow9qiwgdvdbslw
A girl is pushing on an object with a force of 25 N. A boy is pushing on the same object but from the other direction with a force of 35 N. What is the net force acting on the object?
Answer:
Since the force applied at both ends is acting in opposite directions, then the resultant force becomes negative.
= 35 - 25 = 10
Calcium and sulfur Enter the ions formed by these elements and separate your answers with a comma (e.G., Sr2+,As3−).
Answer:
Ca²⁺, S⁻²
Explanation:
Calcium (Ca) is a metallic element and belongs to group II of the Periodic Table. So, it can lose 2 electrons to form the positively charged ion Ca²⁺.
Sulfur (S) is a non-metal element, so it has the tendency to gain electrons and to form anions. It accepts two electrons to form the sulfide ion S²⁻.
10) How much 0.075 M NaCl solution can be made by diluting 450 mL of 9.0 M NaCl?
Answer:
54L
Explanation:
List several other words that are formed using the prefix mon or mono what do these words have in common
Answer:
1) Monochrome
2) Monocot
3) Monosaccharide
4) Monounsaturated
5) Monoxide
Explanation:
The prefix mono or mon is of Greek origin and it means single, lone or one.
From the meaning of the words we can tell that they have something in common:
1) Monochrome: This refers to an artwork, a painting or drawing that has just one color.
2) Monocot: This is a type of flowering plant that has a single embryo and a single cotyledon.
3) Monosaccharide: This is a type of simple sugar that contains one sugar unit that cannot be split.
4) Monounsaturated: This refers to a molecule that contains one double or triple bond.
5) Monoxide: This refers to a form of oxide that contains only one oxygen atom.
From the definitions above, all the words mean having only one or a single item.
That is what they have in common.
Use the following information to answer the following question.
Cu + 2 AgNO3 --> Cu(NO3)2 + 2 Ag
12.7 g of copper metal reacts with silver nitrate to actually produce 38.1 g of silver in the lab.
Percent Yield = Actual Yield/Theoretical Yield x 100%
What is the percent yield of silver (Ag) in this reaction?
Answer:
For these problems, we need to compare the theoretical yield that we'd get from performing stoichiometry to the actual yield stated in the problem. % yield is the actual yield/theoretical yield x 100%
Cu + 2 AgNO₠→ Cu(NOâ‚)â‚‚ + 2 Ag ==> each mole of copper yields two moles of silver
12.7-g Cu x ( 1 mol Cu /63.5-g Cu) x ( 2 mol Ag / 1 mol Cu) x (108-g Ag / 1 mol Ag) = 43.2-g Ag. This is the theoretical yield. Now, since we got 38.1-g Ag our % yield is:
38.1-g/43.2-g x 100% = 88.2%
Explanation: