Answer:
c
Explanation:
Two people are playing tug of war. One person pulls to the right with 32 N of force. The other person pulls to the left with 37 N of force. How strong is the net force and in which direction?
Answer:
The net force is 5 N and to the left.
Explanation:
37 N - 32 N = 5 N and since there is a stronger pull from the rope moves towards the left so the direction of motion is left.
what is acid sulfuric's function ?
Answer:
The answer is below
Explanation:
Sulfuric acid is used for various purposes, some of which include the following:
1. It is used in the production of various manufactured goods.
2. It is used in the manufacturing of chemicals
3. It is also used in the making of fertilizer
4. It is used in the refining process of petroleum products
5. It is used in the processing of metals
An equimolar mixture of X (g) and Y (g) is placed inside a rigid container at constant temperature. The particle diagram above represents the changes that occur over time. Based on the particle
diagram, which of the following best predicts whether or not the system has reached equilibrium by 300 s?
a. It is not possible to determine that the system has reached equilibrium by 300 s because the stoichiometry of the reaction is not known.
b. it is not possible to determine that the system has reached equilibrium by 300 s because the amounts of X, Y, and XY have continued to change
c. The system has reached equilibrium by 300 s because the rate of formation of XY is constant
d. The system has reached equilibrium by 300 s because the rates of consumption of X and Y are equal
Answer:
B
Explanation:
t= 300s has more XY than t=200s, which means that it continues to change
*i think
The system has been predicted to be not possible to reach equilibrium as changing X and Y concentration. Thus, option B is correct.
Equilibrium has been described as the condition in the reaction mixture, when the concentration of the product and the reactant are equal.
The given reaction has been represented as:
[tex]\rm X+Y\rightarrow\;XY[/tex]
Reaction mixture at 300 sThe given reaction has been represented as, with the increase in time, there has been the consumption of the reactant and the formation of product.
The concentration has been continuously changing with time. Thus, the determination of the equilibrium has been difficult with changing X and Y concentration.
Thus, option B is correct.
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In your lab group you combined vinegar and water and observed the results shown in the picture. Choose ALL of the evidence that
supports that a chemical change has occurred.
A gas is produced.
B)The color changed.
c) Bubbling occurred.
D) The baking soda dissolved.
E) There is a change in the composition of the reactants.
ANOTHER HELP OVER HEREEEEEE PLSSSSSSS
The declaration made in the image's results indicates that a chemical shift has taken place. There occurs the creation of gas.
What occurred when you put vinegar in the water?This occurs as a result of vinegar's composition of acetic acid and water. Acetic acid and water molecules create robust connections. These bonds cause the molecules inside the solution to move more slowly than those in pure water, hastening the freezing of the solution.
Briefing:A cup of vinegar and a cup of warm water are the basic components of the vinegar cleaning solution. Grease as well as hard water stains are easier to remove with warm water. It may be best to combine the vinegar and distilled water rather than tap water when filling a spray container that will be used often.
To create a chemical reaction, what can you combine with vinegar?A chemical reaction between vinegar (acetic acid) and baking soda (sodium bicarbonate) results in the production of salt (sodium acetate), water, and carbon dioxide gas.
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the substance that can not be further decomposed by ordinary chemical means is
A.water
B.gold
C.sugar
D.air
The electron has a negative charge.
True
False
Answer:
true :)
Explanation:
have a great day!!
The answers are in the picture. this us the question, An increase in carbon dioxide production has led to an increase in global temperatures, which is causing glaciers to melt faster. If this trend continues, how will animals living in the polar regions be affected?
Answer:
D
Explanation:
because if there is no land for them they wont survive in only water
The increase in global temperature melts the ice in polar regions. This worsely affects the animals living there. Hence, they will migrate to other areas but this is in fact not possible for their adaptation in other areas and they may subject to extinction.
What is global warming ?Global warming is the rise of temperature of earth surface all over the world. The significant reason for global warming is green house effect. Gases like carbon dioxide, methane gas etc. are intensely absorbing temperature that is radiating back from earth.
Hence, these gases are increasing the atmospheric temperature in earth. Global warming have very serious impacts that going up to the major discussion to solve nowadays.
The melting of polar icebergs and rising of sea level definitely leads to the extinction of animals living in polar region. They cant be adopted to other regions and migrating to other areas does not save them. Hence, they will extinct from earth. Therefore, option d is correct.
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Cuales son las Desventajas de la radioactividad en la industria?Ayudarme porfa no encuentro nada importante
Answer:
Ver explicacion
Explanation:
Una desventaja del uso de la industria de la energía nuclear es la posible exposición de los trabajadores a una dosis letal de radiación.
Este tipo de exposición es muy perjudicial para las personas.
En segundo lugar, el hecho de que la fuente de energía nuclear esté siempre encendida significa que debe ser atendida regularmente por personal competente.
Elements in the same period have the same number of
Which one ?
1.valence electrons
2.protons
3.Neutrons
4.orbits
Answer: Protons
Explanation:
If I add a proton to an atom, which of the following will change? (select all that apply) a)the type of element b)The mass of the atom c)The charge of the atom d)The number of neutrons)
Can you help with this thanks
Answer:
Steam escapes from a teapot. Is a chemical reaction occurring? No, because liquid to gas would be a physical change, not a chemical change
Explanation:
Help please
What is the equation for density?
O D= m
OD=
m
m
D=
>le Els -
OD=ž
= { mu?
Answer:
It is this below
Explanation:
P = m/v
A bottle contains 158.1 grams of lead (II) sulfate (PbSO4), used for car batteries. How many moles does it contain?
Number of moles =0.52 moles
The number of moles is defined as the ratio between given mass and molar mass.
Given:
Mass of PbSO₄ = 158.1 grams
To find:
Number of moles=?
Molar mass of PbSO₄ = 303.26 g/mol
[tex]\text{Number of moles}= \frac{\text{Given mass}}{\text{Molar mass}}\\\\\text{Number of moles}= \frac{158.1}{303.26}\\\\ \text{Number of moles}= 0.52\text{ moles}[/tex]
Thus, the number of moles it contain will be 0.52.
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I'm lyrics texting my crush and want to know what song i should do
Answer: mine by bazzie
jus' gonna tell you how i feel (look)
you so focking precious when you smile (heh,yeah)
hit it from the back and drive you wild, oh yeah
girl/boy, lose myself in those eyess
i just had to let you know you're mineee
Cellular respiration occurs mostly in plants nucleus. True or false
Answer: true
Explanation:
How would an apple, potato, and onion all taste the same?
Answer:
If you were to plug your nose, it would block out more than 80% of taste, causing all three items to have no taste- therefore making them taste the same.
Explanation:
Check Your Progress
You have returned home from practice and there is a note on the fridge that says:
“There’s pizza in the fridge, reheat in the microwave if you’re hungry.”
You put the pizza in the microwave and pour yourself a glass of lemonade while you wait. The microwave beeps, and you pull the hot pizza out and set it on the counter. As you set the pizza down, you accidently knock your lemonade over. It takes you a few minutes to clean up the mess, so when you finally come back to the pizza, it is cool.
Draw a molecular model of the pizza as it cools. Include a written explanation.
Be sure to include in your model:
An arrow showing overall (macroscopic) energy movement
Air molecules with motion arrows
Pizza molecules with motion arrows
Collisions between the two molecule types
In your explanation, include the following words: collision(s), temperature, energy
Answer:
.
Explanation:
.
6.0x10^26 molecules of sodium hydroxide
Answer:
6E26
Explanation:
need help on 1-10. for chemistry
Answer:
guhhh
Explanation:
Match the following pls
Answer:
1 d
2 c
3 b
4 e
5 a
if I have a +2 oxidation number do I give up or accept electrons?
Answer:
I will give up the electrons
Explanation:
Consider the following rules:
1. An atom loses electrons if its oxidation number is positive.
2. An atom gains electrons if its oxidation number is negative.
3. An atom neither gains nor loses electrons if its atomic number is zero.
As I have an oxidation number [tex]+2[/tex] that is oxidation number is positive, so, I will give up electrons.
Put the following elements in order of increasing first ionization energy (lowest to highest): S, Ca, Mg,
CI
Answer: Ca, Mg, S, Cl
Explanation: general trends are IE increases as the number of electrons in the outermost shell, and decreases as the number of shells (and shielding effect) increases.
S outer 6, shells 3
Ca outer 2, shells 4
Mg outer 2, shells 3
Cl outer 7, shells 3
Ca has 2 outer, 4 shells —> lowest
others have 3shells
Mg 2outer, S 6, Cl 7
What do you think will happen if you put it above the tube that is over the hot soil?
Answer:
what is "it"
Explanation:
if it's a liquid it will boil
if it's a chemical it could burn or catch on fire
The wavelengths humans can see are known as ______.
UV light
Infrared
Visible light
All of the above
Answer:
visible light spectrum
Explanation:
HELLPPPPPP!
Why does the freezing of water, exothermic process,become spontaneous at temperatures below 0° C even though the entropy of liquid water decreases during the phase change?
Answer:
Because the melting of ice as a spontaneous process (or reaction).
Explanation:
Here is an example:
Take a ice on a plate and leave it for half an hour (conditions). After half an hour, we notice water instead of ice.
This process took place without any intervention from your side. Heat absorbed by the ice from surrounding is due to set of conditions not due to your intervention.
So, we can consider melting of ice as a spontaneous process (or reaction).
Select some particular plant or animal and find out how it has been improved because of the study of genetics. The following examples are given, but you may select some other topic if you like. Be sure that you have the topic and the method (written or oral) of reporting approved before you do your research. If you choose an oral report, it should be at least 3 minutes in length. If you choose a written report it should be at least 500 words in length.
Answer:
Try going onto essaytyper.com
If you roll a bowling ball and a marble at the same
speed, which one has more Kinetic Energy?
Answer:
The marble
Explanation:
Even though they both have kinetic energy, the marble has more since the weight of the bowling ball is heavier, leaving it to stop faster than the marble itself.
2.What are the 3 effects of acid rain..?
Answer:
1) Damages soil and trees.
2) Makes holes in statues and buildings.
3) Pollutes rivers and lakes.
Answer:
It can harm animals underwater and on land
It has an effects on trees, freshwaters, and soils destroy insects and aquatic life-forms, and weathering stone buildings and sculptures, as well as impacts on human health.
Explanation:
I got it from a video. Hopefully, this helps.
HELP PLEASEEE!!!
If new information about the behavior of atoms is discovered and verified, then revisions will need to be made to the current _______.
Answer:
Atomic theory is. A
Explanation:
Subject to change if new information is discovered. B. A solution to the problem of differing isotopes. C. Unchanged able D. A descriptive table that lists all of the element
I hope this answered your question.
b) Why is aluminium extracted using electrolysis and not carbon?
Answer:
Aluminum is more reactive than carbon so it must be extracted from its compounds using electrolysis.
Explanation:
Even though aluminum is more abundant than iron in the Earth's crust, aluminum is more expensive than iron. This is mainly because of the large amounts of electrical energy used in the extraction process.