Answer: The answer is Net Forces.
Net force is the vector sum of forces acting on a particle or body.
Have a great day!
Answer:
it is unbalanced force
Explanation:
hope this helps u stay safe
how many number of electrons are in aluminium and nitrogen in their free state?
Answer:
MRCORRECT has answered the question
Explanation:
13 electrons
So... for the element of ALUMINUM, you already know that the atomic number tells you the number of electrons. That means there are 13 electrons in a aluminum atom. you can see there are two electrons in shell one, eight in shell two, and three in shell three.
7 electrons
So... for the element of NITROGEN, you already know that the atomic number tells you the number of electrons. That means there are 7 electrons in a nitrogen atom. Looking at the picture, you can see there are two electrons in shell one and five in shell two.
what happens to the ammonia and hydrogen gases generated in common zinc carbon dry cell..?
Answer:
A zinc- carbon battery dry cell primary that delivers about 1.5 volts of direct current.
Explanation:
hydrogen gas escapes while retaining the aqueous electrotype.
what is the compound of scI2
Answer:
sulfur dichloride
Explanation:
SCl2 is the chemical formula for sulfur dichloride. This compound is made of only two elements, so it is a binary compound.
You are given the reaction Cu + HNO3 Cu(NO3)2 + NO + H2O complete the final balanced equation based on half-reactions
The balanced equation based on half-reactions is 2Cu + 8HNO3 + 6H+ -> 2Cu(NO3)2 + 2NO + 4H2O.
How to determine the balanced equation based on half-reactionsTo complete the balanced equation for the given reaction Cu + HNO3 -> Cu(NO3)2 + NO + H2O using half-reactions, we need to break down the overall reaction into separate oxidation and reduction half-reactions.
1. Oxidation Half-Reaction:
Cu -> Cu2+ + 2e-
In this step, copper (Cu) is oxidized, losing two electrons to form copper(II) ions (Cu2+).
2. Reduction Half-Reaction:
HNO3 + 3H+ + 2e- -> NO + 2H2O
In this step, nitric acid (HNO3) is reduced, gaining two electrons to form nitric oxide (NO) and water (H2O).
Now, to balance the half-reactions, we need to make sure that the number of electrons gained in the reduction half-reaction is equal to the number of electrons lost in the oxidation half-reaction. In this case, we can achieve this by multiplying the oxidation half-reaction by two.
Balanced Half-Reactions:
Oxidation: 2Cu -> 2Cu2+ + 4e-
Reduction: HNO3 + 3H+ + 2e- -> NO + 2H2O
Finally, we can combine the balanced half-reactions to obtain the balanced equation for the overall reaction:
2Cu + 8HNO3 + 6H+ -> 2Cu(NO3)2 + 2NO + 4H2O
Therefore, the balanced equation based on half-reactions is 2Cu + 8HNO3 + 6H+ -> 2Cu(NO3)2 + 2NO + 4H2O.
Learn more about oxidation at https://brainly.com/question/25551544
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do all objects emit electromagnetic waves?
Answer:
no, not all objects emit electromagnet waves.
Explanation: because lets say the object is carpet it has no magnetic waves in it so not all objects do.
What is the overall reduction potential for the reaction Agt (aq) + Cu(s)——>Ag(s) + Cu2+ (aq)?
-0.46 V
+0.46 V
+0.57 v
+1.14V
Answer:
it should be +0.46 :)
Explanation:
I just took the test and got it right.
Answer:
I think it's +1.14 V, but don't take my word for it..
A balloon containing N2 has 1.70 moles and occupies 3.80L. What will the volume be if the number of moles is increased to 2.60moles?
Help me please
Answer:
5.81L
Explanation:
N1 = 1.70 moles
V1 = 3.80L
V2 = ?
N2 = 2.60 moles
Mole - volume relationship,
N1 / V1 = N2 / V2
V2 = (N2 × V1) / N1
V2 = (2.60 × 3.80) / 1.70
V2 = 9.88 / 1.70
V2 = 5.81 L
The volume of the gas is 5.81L
How do American cities now protect their water resources
Answer:
They can use man made materials or they can also have designed areas that people can’t go into
Explanation:
Which one is it? Please help
Answer:
Chemical properties can be tested without changing the substance
Explanation:
Stoichiometry is based on the _______________________________
Answer:
Explanation:
Stoichiometry is based on the conservation of mass.
if the [H+] = 0.01 M, what is the pH of the solution, and is the solution a strong acid, weak acid, strong base, or weak base?
12, strong base
2, weak acid
12, weak base
2, strong acid
Answer:
2, strong acid
Explanation:
Data obtained from the question. This includes:
[H+] = 0.01 M
pH =?
pH of a solution can be obtained by using the following formula:
pH = –Log [H+]
pH = –Log 0.01
pH = 2
The pH of a solution ranging between 0 and 6 is declared to be an acid solution. The smaller the pH value, the stronger the acid.
Since the pH of the above solution is 2, it means the solution is a strong acid.
ipt Which of the following is true about semipermeable membranes?
A. A semipermeable membrane allows passage of solute particles but not solvent particles.
B. A semipermeable membrane allows passage of solvent particles but not solute particles.
C. A semipermeable membrane allows passage of both solvent and solute particles.
D. A semipermeable membrane does not allow passage of either solvent or solute particles.
According to one acid-base theory a molecule acts as an acid when the molecule
If the cost of electricity is 8 cents/kWh, how much will it cost to use the light for a whole year (365 days)?
Answer:
$13.8
Explanation:
Answer:
For a 100 watt bulb it would be around 700.8 USD, (648.53 Euros).
Explanation:
Since you did not specify the wattage of the bulb, this would be it. You could manipulate the wattage, and then do the same to the cost. E.G, a 50 watt bulb would be about 350.4 USD.
Which answer gives both a positive impact and a negative impact associated with the effects of nitrogen- and phosphorus-enhanced fertilizers?
A- increased algal blooms and damage to drinking water
B- increased plant growth and damage to drinking water
C- increase in denitrifying bacteria and increase in plant growth
D- increase in a limiting resource and increase in denitrifying bacteria
Answer:
The answer is B
Explanation:
Answer:
Which answer gives both a positive impact and a negative impact associated with the effects of nitrogen- and phosphorus-enhanced fertilizers?
1. increased algal blooms and damage to drinking water
Right Answer 2. increased plant growth and damage to drinking water
3. increase in denitrifying bacteria and increase in plant growth
4. increase in a limiting resource and increase in denitrifying bacteria
Explanation:
The balloon in this image was rubbed with a piece of wool material. Now, it is negatively charged. What force allows the charged balloon to "pick up" the small pieces of paper off of the table?
The negatively charged balloon is attracted to negative static charges in the paper..
The negatively charged balloon is attracted to the north pole of the paper pieces.
The negatively charged balloon is attracted to the south pole of the paper pieces.
The negatively charged balloon is attracted to the positive static charges in the paper.
What is the best explanation of electric current in a wire?
Electrons build up in the wire and create a charge.
Electrons flow because of electrical attraction and repulsion.
Protons are pushed along by electric forces.
Atoms move because of heat.
Why does the light bulb in a circuit turn on when you close the switch?
The switch absorbs the electrical energy.
The switch changes the direction of the flow of electrons.
Closing the switch completes the circuit, making it a closed circuit.
The switch changes the circuit from series to parallel.
Earth is dipolar, like a bar magnet.
What does this mean about its magnetic poles?
There is only a magnetic south pole.
There is only a magnetic north pole.
There are both magnetic north and south poles.
There are two magnetic north poles.
Which arrangement described below would result in magnetic poles that attract one another?
North Pole + South Pole
South Pole + West Pole
East Pole + North Pole
North Pole + North Pole
Why is an electromagnet a temporary magnet?
An electromagnet only attracts other permanent magnets.
An electromagnet becomes a magnet when a current flows through the wire. An electromagnet no longer acts as a magnet when the current flow stops.
An electromagnet cannot be turned on and off.
An electromagnet is a magnet when no current flows through the wire. The electromagnet no longer acts as a magnet when current flows through the wire.
What set of materials listed below could be used to create a complete electromagnet?
wires and battery
iron nail and battery
iron nail, magnet, and wire
battery, iron nail, copper wire
Where is a bar magnet's magnetic field the strongest?
red part of the magnet
longest part of the magnet
magnetic poles (N + S)
center of the magnet
A(n) ___________ is represented in the diagram it converts electrical energy into mechanical motion.
generator
electromagnet
parallel circuit
motor
Answer:
I actually have no idea
Explanation:
Sorry my man
Answer:
Explanation:
generator
does gravity affect the orbit of the international space
Answer:
yes
Explanation:gergrgregbfbwerbebw
What is the binding energy of a mole of nuclei with a mass defect of 0.00084
kg/mol?
Answer:
7.56 x 10^13 J/mol
Explanation:
Binding energy = (Mass defect) × (velocity of light)² = (84 × 10^-5) × (3 × 10^8)^2 = 756 × 10^11 J = 7.56 × 10^13 J/mol
Hope this helps -Paige
10. You can protect yourself from radiation by
going up to a higher elevation
increasing the time you are exposed
increasing your water intake
getting further away from the radiation source
Answer:
You can protect yourself from radiation by getting further away from the radiation source .
You use a 15.0 gram piece of aluminum foil to cover a pan in the oven. The specific heat for aluminum is c = 0.900 J/g o C. If the temperature is raised from 25 o C to 350 o C, how much heat was absorbed?
Answer:
Best regards.
Explanation:
Hello,
In this case, we relate the heat, mass, heat capacity and temperature when a thermal change is carried out as shown below:
[tex]Q=mCp(T_{final}-T_{initial})[/tex]
Now, for the given data, we compute the absorbed heat (due to the temperature increase) as follows:
[tex]Q=15.0g*0.900\frac{J}{g^oC}*(350^oC-25^oC) \\\\Q=4.39x10^3J=4.39kJ[/tex]
Best regards.
Answer:
4,387.5 J was absorbed
Explanation:
Calorimetry is the part of physics that is responsible for measuring the amount of heat generated or lost in certain physical or chemical processes.
In this way, there is a direct proportional relationship between heat and temperature. Thus, the amount of heat received or transferred by a body when it undergoes a temperature variation (Δt) without there being a change of physical state (solid, liquid or gaseous) is calculated using the following expression:
Q = c * m * ΔT
Where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.
In this case:
Q= ?c= 0.900 [tex]\frac{J}{g*C}[/tex]m= 15 gΔT=Tfinal - Tinicial= 350 °C - 25 °C= 325 °CReplacing:
Q= 0.900 [tex]\frac{J}{g*C}[/tex] *15 g * 325 °C
Q=4,387.5 J
4,387.5 J was absorbed
Na2CO3 is a/an ____________ compound where its electrons are _______. *
1.covalent, shared
2.covalent, gained/lost
3.ionic, gained/lost
4.ionic, shared
Answer:
Answer is 3 because NaCo3 because NaCo3 is ionic compound and electrons of ionic compound are gained / lost
Assuming a car (with a 70-L) gas tank can hold approximately 50,000 (5.00 * 10^4) g of octane(C8H18) or 50,000 (5.00 * 10^4) g of ethanol (C2H6O). How much carbon dioxide (CO2), in grams, is produced in one tank of gas from the combustion of each amount?
Answer:
- From octane: [tex]m_{CO_2}=1.54x10^5gCO_2[/tex]
- From ethanol: [tex]m_{CO_2}=9.57x10^4gCO_2[/tex]
Explanation:
Hello,
At first, for the combustion of octane, the following chemical reaction is carried out:
[tex]C_8H_{18}+\frac{25}{2} O_2\rightarrow 8CO_2+9H_2O[/tex]
Thus, the produced mass of carbon dioxide is:
[tex]m_{CO_2}=5.00x10^4gC_8H_{18}*\frac{1molC_8H_{18}}{114gC_8H_{18}}*\frac{8molCO_2}{1molC_8H_{18}}*\frac{44gCO_2}{1molCO_2} \\\\m_{CO_2}=1.54x10^5gCO_2[/tex]
Now, for ethanol:
[tex]C_2H_6O+3O_2\rightarrow 2CO_2+3H_2O[/tex]
[tex]m_{CO_2}=5.00x10^4gC_2H_6O*\frac{1molC_2H_6O}{46gC_2H_6O}*\frac{2molCO_2}{1molC_2H_6O}*\frac{44gCO_2}{1molCO_2} \\\\m_{CO_2}=9.57x10^4gCO_2[/tex]
Best regards.
What does the questions “how much?” and “how many?” have in common?
how is the sun classified
Answer: it is classified as a star
Explanation:
The sun is big source of energy but it is still a star
Answer:
the sun is the solar systems biggest star. a moderately large yellow dwarf
Determine whether these statements describe Geiger counters, scintillation counters, both, or neither. An amplifying device that indicates the presence of ionizing particles A device that permits determination of alpha and beta radiation emitted from a substance Film sensitive to radiation that is removed and developed to measure exposure A device used for monitoring individual cumulative exposure to ionizing radiation
Answer:
An amplifying device that indicates the presence of ionizing particles
GEIGER COUNTERS
A device that permits determination of alpha and beta radiation emitted from a substance
BOTH
Film sensitive to radiation that is removed and developed to measure exposure
NEITHER
A device used for monitoring individual cumulative exposure to ionizing radiation
NEITHER
Explanation:
1. Geiger counters and scintillation counters can be described by statements 1 and 2.
2. Statement 3 refers to film-based radiation detectors, not Geiger counters or scintillation counters.
3. Statement 4 refers to dosimeters, not Geiger counters or scintillation counters.
1. An amplifying device that indicates the presence of ionizing particles: This statement describes both Geiger counters and scintillation counters. Both types of counters use amplifying devices to detect and indicate the presence of ionizing particles.
2. A device that permits determination of alpha and beta radiation emitted from a substance: This statement describes both Geiger counters and scintillation counters. Both types of counters are capable of detecting alpha and beta radiation.
3. Film sensitive to radiation that is removed and developed to measure exposure: This statement describes neither Geiger counters nor scintillation counters. Instead, it refers to film-based radiation detectors, such as photographic film or thermoluminescent dosimeters (TLDs), which are used to measure radiation exposure.
4. A device used for monitoring individual cumulative exposure to ionizing radiation: This statement describes neither Geiger counters nor scintillation counters.
Know more about ionizing particles:
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What are the amplitude's for both waves A and B?
Answer:
Wave A= 20m
Wave B= 30m
Explanation:
The amplitude of a wave is the maximum displacement (or height) from its equillibrum position.
The equilibrium position is at 0 meters for both waves.
Thus, amplitude of wave A= 20m
Amplitude of wave B= 30m
50 POINTS!!!! Please Help I'm being timed and this would help so much! 50 POINTS!!!!
Calculate the hydrogen ion concentration [h+] for the aqueous solution in which [oh-] is 1 x 10^-2 mol/l. Is this solution acidic, basic, or neutral? Show your work.
Answer:
[H⁺] = 1.0 x 10⁻¹² M.
Explanation:
∵ [H⁺][OH⁻] = 10⁻¹⁴.
[OH⁻] = 1 x 10⁻² mol/L.
∴ [H⁺] = 10⁻¹⁴/[OH⁻] = (10⁻¹⁴)/(1 x 10⁻² mol/L) = 1.0 x 10⁻¹² M.
∵ pH = - log[H⁺] = - log(1.0 x 10⁻¹² M) = 12.0.
∴ The solution is basic, since pH id higher than 7 and also the [OH⁻] > [H⁺].
I think- IDK
PLEASE HELP ME ANY ANSWER THAT IS SAYING IDK OR SOMETHING LIKE THAT WILL BE REPORTED I NEED HELP OK FIRST TO ANSWER CORRECTLY GETS BRAINLIEST
(Match the term with the definition) In E = mc2,
1)mass
2)kilogram
3)energy
4)joules
5)meters/second
6)speed of light
a)What does E stand for?
b)What does m stand for?
c)What does c stand for?
d)What is the unit for E?
e)What is the unit for m?
f)What is the unit for c?
Answer:
a → 3
b → 1
c → 6
d → 4
e → 2
f → 5
Hope this helps!
Answer:
a → 3
b → 1
c → 6
d → 4
e → 2
f → 5
Explanation: hope it helps!!
if 31.6 g of KMnO4 is dissolved in enough water to give 160 mL of solution, what is the molarity?
AND
what mass of oxalic acid , H2C204, is required to make 300 mL of a .74 M solution?
Answer:
A. 1.25M
B. 19.98g
Explanation:
A. Data obtained from the question include the following:
Mass of KMnO4 = 31.6 g
Volume = 160 mL
Molarity =..?
We'll begin by calculating the number of mole KMnO4 in the solution. This is can be obtained as follow:
Mass of KMnO4 = 31.6 g
Molar mass of KMnO4 = 39 + 55 + (16x4) = 158g/mol
Number of mole of KMnO4 =..?
Mole = mass /Molar mass
Number of mole of KMnO4 = 31.6/158 = 0.2 mole
Now, we can obtain the molarity of the solution as follow:
Volume = 160 mL = 160/1000 = 0.16L
Mole of KMnO4 = 0.2 mole
Molarity = mole /Volume
Molarity = 0.2/0.16 = 1.25M
B. Data obtained from the question include the following:
Volume = 300mL
Molarity = 0.74 M
Mass of H2C2O4 =..?
First, we shall determine the number of mole H2C2O4. This is illustrated below:
Volume = 300mL = 300/1000 = 0.3L
Molarity = 0.74 M
Mole of H2C2O4 =?
Mole = Molarity x Volume
Mole of H2C2O4 = 0.74 x 0.3
Mole of H2C2O4 = 0.222 mole
Now, we can easily find the mass of H2C2O4 by converting 0.222 mole to grams as shown below:
Number of mole of H2C2O4 = 0.222 mole
Molar mass of H2C2O4 = (2x1) + (12x2) + (16x4) = 2 + 24 + 64 = 90g/mol
Mass of H2C2O4 =..?
Mass = mole x molar mass
Mass of H2C2O4 = 0.222 x 90
Mass of H2C2O4 = 19.98g
What is the name of C3H8?
Answer:
Propane
Explanation:
