Rate of reaction will decrease if there is an increase in product concentration.
If one (or more) of the reactants or products concentrations are raised, the equilibrium will change to lower the concentration. Alternately, if the temperature is lowered, the equilibrium will change to favor the exothermic process, which will raise the temperature.
The rate of the reaction will frequently rise as one or more of the reactants are concentrated more. This happens as a result of the fact that a reactant collides more frequently over time at increasing concentrations.An increase in a products concentration will result in a decrease in the total quantity of products and an increase in the total number of reactants. That is the reaction will move backwards.Hence, there is decrease in rate of reaction as the product concentration increases.
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How many milliliters of 11.5 m hcl(aq) are needed to prepare 675.0 ml of 1.00 m hcl (aq)?
To prepare a solution of hcl(aq) with a volume of 675.0 ml and a concentration of 1.00 m from a concentrated solution of 11.5 m we need a volume of: 58.69 ml
To solve this problem, the formula and the procedure that we have to use is:
c1 * v1 = c2 * v2
Where:
c1= concentration of the concentrated solutionv1 = volume of the concentrated solutionc2 = concentration of the diluted solutionv2 = volume of the diluted solutionInformation about the problem:
c1 = 11.5 mc2 = 1.00 mv2= 675.0 mlv1=?Applying the dissolution of concentrations formula and clearing the volume of the concentrated solution (v1) we get:
c1 * v1 = c2 * v2
v1 = (c2 * v2)/ c1
v1 = (1.00 m * 675.0 ml)/ 11.5 m
v1 = 58.69 ml
What is a solution?In chemistry a solution is known as a homogeneous mixture of two or more components called:
Solvent: it usually is in a major amount than the soluteSolute: it usually is in less amount than the solventLearn more about chemical solution at: brainly.com/question/13182946
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Which of the following is evidence that groundwater cause erosion and deposition
Answer:You didn't provide examples
Explanation: Groundwater can cause erosion under the surface as it moves through the soil. During the movement an acid is formed which what causes erosion and deposition.
Hope that helps
Which process is a genetic engineering process?
exposing food to radiation, which causes mutation in the genes
removing DNA from cells of the food
replacing some genes of the food with genes from other species
protecting food with an antimicrobial coating
Answer:
Replacing some Gene's of the food with Gene's from other species
Answer:
C. replacing some genes of the food with genes from other species
Explanation:
just did the quiz good luck <3
Chromium has four naturally occurring isotopes. cr-50 (mass of 49.946 amu and 4.35% abundance); cr-52 (mass of 51.941 amu and 83.79% abundance); cr-53 (mass of 52.941 amu and 9.50% abundance); and cr-54 (mass of 53.939 amu and 2.36% adundance). calculate the average atomic mass of chromium to 3 decimal points. average atomic mass=(mass a)(%a) (mass b)(%b) (mass c)(%c) (mass d)(%d) 100
The average atomic mass of chromium to 3 decimal points is 52. 055 g. mol.
What is the average atomic mass?"The weighted average mass of the atoms in a naturally occurring sample of an element is the average atomic mass, also known as atomic weight."
Given the different isotopes of chromium.
The four isotopes of chromium are cr-50, cr-52, cr-53 cr-54.
The average atomic mass will be
Let us take the weighted average of your isotopes:
50 × 0.0434 + 52 × 0.8379 + 53 × 0.095 + 54 × 0.0237 = 52. 055 g.
Thus, the average atomic mass of chromium is 52. 055 g.
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Which of the following best describes a meridian of longitude?
A line that is drawn horizontally around the earth and is parallel to the Prime Meridian.
A line that is drawn vertically down the earth and is parallel to the equator.
A line that is drawn vertically down the earth but is NOT parallel to the Prime Meridian.
A line that is drawn horizontally around the earth and is parallel to the equator.
Answer:
A line that is drawn vertically down the earth but is not parallel to the prime Meridian.
Explanation:
A line that is drawn vertically down the earth but is NOT parallel to the Prime Meridian, best describes the meridian of longitude.
What is prime meridian?Prime Meridian is an imaginary line which divides the earth into eastern and western hemispheres
What do you mean by meridian of longitude?Meridian of longitude is an imaginary semicircle that runs from north to south direction and joins the two poles. All meridians are of the same length and meet at the poles.
Hence, option 3 is the answer.
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A child on a high dive has a mass of 40 kilograms. If the high dive is 10 meters in the air, what is the potential energy?
3920 Joules
400 Joules
4 Joules
Answer:
3920 JoulesExplanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
From the question we have
PE = 40 × 9.8 × 10
We have the final answer as
3920 JHope this helps you
H2 + O2 -> 2H2O
balanced or unbalanced pls help
Answer:
Unbalanced
Explanation:
The reaction equation is given as:
H₂ + O₂ → 2H₂O
The given reaction flouts the law of conservation of mass and it is not balanced. To know a reaction that is balanced, the number of atoms on both sides of the expression must be the same;
Number of moles
Reactants Products
Hydrogen 2 4
Oxygen 2 2
We see that the hydrogen atoms are not balanced.
Which has more thermal energy: 5 grams of water at 50 °C or 500 grams of water at 50 °C?
Explain your answer.
Answer:
500 grams
Explanation:
its because it has more water. The amount of thermal energy available in a substance is proportional to the mass of the substance.
please help! Chemistry is not my subject! Thanks
Answer:
the answer is B
Al(s) ⇒ Al3+(aq) + 3e-
and Au+(aq) + e- ⇒ Au(s)
What type of bond is Si and S
In a double bond, two atoms share a total of _____ electrons. a two b three c four d six
Answer:
C: 4
Explanation:
In every single covalent bond, each atom shares one electron. 1 + 1 = 2. A double bond is just two bonds so, 2 x 2 = 4.
Why does a pair of jeans look blue?
A. It reflects blue light.
O B. It transmits blue light.
O C. It absorbs blue light.
O D. It reflects all colors of light except blue.
Answer:
A
Explanation:
I believe the answer is A. An object is every color except the color we see, or the color that bounces off of said object. Therefore if a carpet is yellow, the carpet is every color but yellow. Yellow is the color that it rejects, bounces off of it, and the one we see.
To solve this we must be knowing each and every concept related to reflections. Therefore, a pair of jeans look blue because it reflects blue light.
What is reflection?In physics, reflection usually described as a change in the orientation of a waveform at the interface of two distinct media, bouncing the waveform back onto the original medium.
The color we perceive is primarily determined by how things interact with lighting as well as finally reflect or transfer it to our eyes. The color we perceive is primarily determined by how things interact with lighting as well as finally reflect or transfer it to our eyes. A pair of jeans look blue because it reflects blue light.
Therefore, a pair of jeans look blue because it reflects blue light.
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What does the chemical formula CaCl2 show about the compound it represents? It is made up of one element. It is made up of two elements. It is made up of three elements. It is made up of four elements.
Answer:
2
Explanation:
not 100%sure hehe
The compound calcium chloride with the formula CaCl₂ has two elements namely, calcium and chlorine. Hence, option b is correct, the compound is made of 2 elements.
What is a compound ?A compound is a chemical substance which is made by the combination of atoms of two or more elements. The bonding type of this elements differ from compound to compound.
Calcium chloride is an ionic compound formed by the electron transfer from calcium to chlorine. The two electrons of the valence shell of Ca is donated to each chlorine atoms.
The number of elements in this compound is thus 2, which are calcium and chlorine. There are three atoms in one calcium chloride molecule. One of calcium and two atoms of chlorine. Hence, option b is correct.
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At 273°K and 1 atm (STP), the volume of a gas is 1000ml. If the temperature changes to
298° K and the pressure is doubled, what is the new volume of the gas?
Answer:
V₂ = 545.79 mL
Explanation:
Given data:
Initial volume = 1000 mL
Initial pressure = 1 atm
Initial temperature = 273 K
Final temperature = 298 K
Final volume = ?
Final pressure = 2 atm
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
V₂ = P₁V₁ T₂/ T₁ P₂
V₂ = 1 atm × 1000 mL × 298 K / 273 K × 2 atm
V₂ = 298000 atm .mL. K / 546 K.atm
V₂ = 545.79 mL
Need help with these.
According to Kepler’s 3rd law of motion, which planet will have the shortest orbital period?
A). Jupiter
B). Mercury
C). Earth
D). Saturn
Answer:
B: Mercury
Explanation:
Yuh
true or false all cells are the same size
Answer:
False
Explanation:
Answer:
false
Explanation:
yes
Explain your observations on what organisms need to grow. Explain how human activity can impact an organism's ability to obtain the resources it needs to survive. State your opinion about how human activity can be changed to have less impact on the lives of other organisms.
Answer:
The human being sometimes exploits the resources that other living organisms need to survive. This is how competition for the environment increases and many species on this planet are at risk of extinction.
Explanation:
An example of this is how humans exploit mambu canes for commercial products, such as sweets and even toys, thus generating that the panda bear species does not have a food resource to survive.
based on the law of multiple proportions, how many grams of hydrogen would you expect 2.58 g of nitrogen to combine with to yield ammonia?
Based on the law of multiple proportions, there are 0.55 grams of hydrogen.
Law of multiple proportions or Dalton's Law said that the ratios of the masses of the second element which combine with a fixed mass of the first element will be ratios of small whole numbers.
In one molecule of the ammonia, there are three hydrogen atoms and one nitrogen atom
In a molecule of ammonia (NH3), proportion of the masses of nitrogen and hydrogen is:
m(N) : m(H) = 14 : (3·1) = 14 : 3
Mass of nitrogen is 2.58 grams
2.58 g : m(H) = 14 : 3
m(H) = 0.55 g; mass of hydrogen needed to react with nitrogen
Balanced chemical reaction: N₂ + 3H₂ ⇄ 2NH₃
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name different types of nutrients that our muscles need.
PLEASE ANSWER SOON ITS DUE IN A FEW MIN HELPPPP
Answer:
Biotin. ...
Iron. ...
Vitamin C. ...
Selenium. ...
Omega 3. ...
Vitamin D. ...
Vitamin B12.
Explanation:
Explanation:
They are:-
1. Vitamins
2. Minerals
3. Protein
4. water
5. Fats
6. Carbohydrates
The exchange of gases in lungs take place in alveoli. True or false
Answer:
True
Explanation:
At the end of each bronchiole is a cluster of little air sacs called alveoli. Alveoli are wrapped in tiny blood vessels called capillaries. The air you breathe in fills these air sacs with oxygen-rich air. This is where the exchange of gases occurs.
What is the charge of phosphate in AlPO4?
The charge of phosphate : 3-
Further explanationOxidation is an increase in oxidation number, while reduction is a reduction in oxidation number.
The formula for determining Oxidation Numbers in general:
1. Single element atomic oxidation number = 0.
Group IA (Li, Na, K, Rb, Cs, and Fr): +1
Group IIA (Be, Mg, Ca, Sr and Ba): +2
Group IIIA(Al, B) : +3
H in compound = +1, except metal hydride compounds (Hydrogen which binds to groups IA or IIA) oxidation number H = -1, for example, LiH, MgH₂, etc.
2. Oxidation number O in compound = -2, except OF2 = + 2 and in peroxide (Na₂O₂, BaO₂) = -1 and superoxide, for example KO₂ = -1/2.
3 The oxidation number in an uncharged compound = 0,
Total oxidation number in ion = ion charge, Example NO₃⁻ = -1
Compound AlPO₄ :
The oxidation number in an uncharged compound = 0
Since the charge of Al as group 3A (or group 13) is +3, while the AlPO₄ compound is a polyatomic compound (consisting of polyatomic ions PO₄ and Al), the PO₄ charge:
charge Al + charge PO₄ = 0
+ 3 + charge PO₄ = 0
charge PO₄ = -3
When aqueous solutions of Li3PO4 and MgSO4 are mixed, Mg3(PO4)2 is a precipitate
formed. What is the balanced net ionic equation?
Answer:
Li2SO4
Explanation:
Balance the reaction of Li3PO4 + MgSO4 = Li2SO4 + Mg3(PO4)2 using this chemical equation balancer!
How did mossely esablish a more accurate periodic table
Explanation:
arranged by their number of protons rather than their atomic mass
What did Scientist found that surprised them after making a map of the ocean floor?
a
Subduction
b
Pangea
c
Mid-Ocean ridge
d
Volcanoes
Answer:
C
Explanation:
In 1953 they made soundings and discovered the ocean ridges
Draw a number line that represent: it was 29 celculs and it drop down to 16 celculs
Let's take the drop in temperature is - x
expression-> 29-x=16
I have attached the line diagram below.
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how many electrons are in krypton
Answer: 36
Explanation:
A 60.0 g sample of chromium at 82.0°C (specific heat for chromium is 0.11 J/g°C) was placed in 80.0 g of water. Assume there is no loss of heat to the environment. What is the temperature of the water and the chromium? The water's initial temperature was 24.0°C.
The temperature of the water and the chromium : 25.122 ° C
Further explanationThe law of conservation of energy can be applied to heat changes, i.e. the heat received / absorbed is the same as the heat released
Q in(gained) = Q out (lost)
Heat can be calculated using the formula:
Q = mc∆T
Q = heat, J
m = mass, g
c = specific heat, joules / g ° C
∆T = temperature difference, ° C / K
Q Chromium= Q water
[tex]\tt 60\times 0.11\times (82-t)=80\times 4.18\times (t-24)\\\\541.2-6.6t=334.4t-8025.6\\\\341t=8566.8\\\\t=25.122^oC[/tex]
PLEASE HELP ASAP!!
Choose the reaction that would not lead to the production of hydrogen gas. a. Cu + HCl
b. Na + H2SO4
c. K + H2O
d. Zn + HCl
Answer:
the answer should be c.
Explanation:
I don't know how to transcribe the following DNA sequecne too rna
Answer:
There is only one change when transcribing from a DNA sequence to a RNA sequence.
Explanation:
The change when transcribing is that instead of thymine (T) in a DNA sequence, you have Uracil (U) in a RNA sequence. The rest will stay the same. So, DNA has ATCG, whereas RNA has UACG. There should be NO thymine (T) in your RNA sequence–– it should only include the four of the following: UACG.
[FORMAT]: DNA is to RNA
A is to U (IMPORTANT, NO "T") –– Think as Apples Under the Tree
T is to A –– Think as Trees have Apples
C is to G –– Think as Car in the Garage
G is to C –– Think as Inside the Garage are Cars