Work = Force x Distance, calculate the amount of work done on an object
when a 300 N force acts on an object for a distance of 10 meters.
Please help and show work thanks
Answer:
3000 Joules
Explanation:
as you mentioned, w=fd
where w is the work done, in this scenario in the unit of Joules
the force, or f, is given to be 300N
the distance, or d, is given to be 10m
because joules is simplified to Newtons times Meters, all we need to do in this case is plug the givens into the equation.
so, 300 Newtons x 10 Meters = 3000 Joules
All of the following are empirical formulas EXCEPT
a) Fe(OH)3
b) Na2SO4
c) N204
d) Sn3(PO4)2
PLEASEEEEE HELP ME ON QUESTION 8 ASAP!!!!!!!!!!!!!!!!!!! GIVING 20 POINTS
Answer:
I am pretty sure the correct answer is a reproductive system
What kind of reaction is this?
Na + AgNO3 --> NaNO3 + Ag
Answer:
oxidation-reduction reaction
Explanation:
na was oxidized and ag was reduced
ag^1 +1e = ag
na= na^1 +1e
How many moles of NaCl can be made from 16 moles of Na?
is lemon juice a asid base or neutral?
plzz help mee
Answer:
Acid
Explanation:
The pH level is below 7
You have 1 1/2 moles of 1 kg bottles of O2. What is the mass of O2 that you have? A. 9.033x10^23 kg B. 9.033x10^23 atoms C. 1.80x10^27 kg D. 1.806x10^24 moles
Answer:
b
Explanation:
trust
Answer:
B
Explanation:
5.23×7
estimate this product
Answer:
200
Explanation:
23 rounds down to 20
7 rounds up to 10
20 times 10 equals 200
Which atom has the lowest(smallest) ionization energy?
A. Na
B.K
C. Me
D. Ca
Which of these statements is NOT true of the biosphere? *
A. It includes living things only.
B. It includes all of Earth's ecosystems.
.
C. It includes the parts of Earth in which organisms live.
Answer:
A is not true.
The biosphere contains living and nonliving things.
Let me know if this helps!
1. How does erosion affect Earth's surface?
Answer:
By washing away the top soil and damages the echo system. It also destroys animal habitats.
A student measures the volume of a rock, and then repeats the measurement two times. For the three measurements to be very precise, what must be true about them?
A. The measurements must be very close to the true volume of the rock.
B. The measurements must be very close to one another.
C. At least one of the measurements must be equal to the true volume of the rock.
D. The three measurements must be reported in whole numbers, not decimals.
Answer:
i think b
Explanation:
A student measures the volume of a rock and then repeats the measurement two times. For the three measurements to be very precise the measurements must be very close to one another for rock. Option B is correct.
What is precise?While measuring something is the measured value is close to each other then the result measurement is said to be precise and the phenomena are called precision.
In the measurement of rock, the measured values must be close to each other and do not vary much then only the measurement of students can be precise.
Therefore, Option B is correct, the measurements must be very close to one another for the rock student measures the volume of a rock and then repeat the measurement two times. For the three measurements to be very precise.
Learn more about precise, here:
https://brainly.com/question/1311561
#SPJ2
How many atoms can be found in 6.7 moles of Bromine (Br)
Question 7 options:
4.03 x 10^24
9.13 x 10^-24
8.99 x 10^22
3.31 x 10^24
Answer:
The first one is correct, 4.03 x 10^24.
Compound name for C3F8
Answer:
Perflutren
Explanation:
Perflutren is a fluorinated hydrocarbon and gaseous substance used as an imaging contrast agent.
Fluidity is maximum in
a. Solid
b. Liquid
c. Gas
d. Liquid and gas
True or False. Single covalent bonds are stronger than triple covalent
bonds
Answer:
False
Explanation:
Triple covalent bonds are much more stronger than single covalent bonds. In single bond, 2 electrons are shared, in double bond four electrons are shared and in triple bond six electrons are shared. Thus, triple bond is difficult to break since it is the strongest bond. Between the two atoms, stronger the bond, more stable the molecule. Thus, triple bond is more stable.
A salesman traveled at an average speed of 75 km/h for 2 hours. How far did he travel?
Answer: 150 km
Explanation:
75 × 2 = 150 km
Answer:
74km per hour can be put in fraction form, 75 (km)/ 1 hour
We need to know how man miles in 2 hours so our fraction will be x (km)/ 2 hours
75/1 = x/2
x= 150 km
Explanation:
Which best illustrates the way in which radiation? Giving brainy.
Answer:
I dont really understand your question. but maybe this might help.
https://quizlet.com/283377931/radiation-flash-cards/
Explanation:
is the maximum population that a given area can support.
Carrying capacity
Population growth
Limiting factor
Immigration rate
The carrying capacity is the maximum number of individuals of a species that an environment can support. Population size decreases above carrying capacity due to a range of factors depending on the species concerned, but can include insufficient space, food supply, or sunlight.
In what type of reaction will an acid and a base react with each other?
oxidation-reduction
decomposition
combustion
neutralization
Answer:
answer is D
Explanation:
neutralization
Answer: Neutralization reaction
Explanation: lets look at it this way Since acids have pH below 7 ie pH 2 and bases have pH above 7 ie 13 so to "neutralize" the pH we add them together and thats how neutralization takes place !
What is the molar mass of KAISiO4
(with work)
Answer: hmmmmmmmm ldk
Explanation:
heelp plzzzzzzzz anyyyyyone
Answer: C
Explanation:
particles in a gas can______.
I have peew weee brain help me pls
When you heat a sample of gas, what happens to the particles that make up the gas?
A) The particles move faster
B) The particles get bigger
C) The particles slow down
D) The particles get smaller
The particles of the gas move faster when you apply heat to a sample of gas.
WHAT IS A GAS?
A gas is one of the three states which matter can exist. A gas posseses no fixed shape or volume.
A gas is characterized by the ability to diffuse quickly through space because of the very weak attraction of its particles to one another.
WHAT DOES HEAT DO?
Heat (thermal energy) increases the kinetic energy i.e. energy due to motion of the particles, causing them to move faster. In the process, gas particles expands.
Therefore, when heat is applied to a sample of gas, the particles of the gas move faster.
Learn more: https://brainly.com/question/11973814
1.
a) If 1.08 g of sodium sulfate reacts with an excess of phosphoric acid, how much sulfuric acid is produced? (0.74577)
b) If 0.726 g of sulfuric acid is produced in the laboratory experiment, what is the percent yield of sulfuric acid? (97.3190)
2.
If 3.2 moles of sodium sulfate is used in the reaction, how many formula units of phosphoric acid is needed to completely react?
(1.28427×1024
Answer:
1. a) 0.745 g of H₂SO₄
b) 97.4%
2. 1.28×10²⁴ formula units
Explanation:
First of all, we determine the equations:
3Na₂SO₄ + 2H₃PO₄ → 3H₂SO₄ + 2Na₃PO₄
We determine, the moles of sodium sulfate. (As the acid is in excess, we work with the salt)
1.08 g . 1mol/ 142.04g = 0.00760 moles.
Ratio is 3:3. So 3 moles of salt can produce 3 moles of sulfuric acid,
Then, 0.00760 moles will produce the same amount of acid.
We convert the moles to mass → 0.00760 mol . 98 g/mol = 0.745 g
Percent yield = (Produced yield /Theoretical yield) . 100
(0.726 g / 0.745 g) . 100 = 97.4 %
2. 3 moles of sodium sulfate need 3 moles of phosphoric acid to react
Then, 3.2 moles of salt will react to (3.2 . 2)/3 = 2.13 moles
Let's count the formula units:
2.13 mol . 6.02×10²³ formula units /mol = 1.28×10²⁴ formula units.
describe un modelo matemático para representar lo que sucede en cada una de las reacciones químicas (incluye toda la simbología que puedas) y clasifícalas según consideres de acuerdo con lo abordado en el tema.
1. El hidrógeno molecular reacciona con el oxígeno molecular y produce agua
2. El Óxido de calcio reacciona con el agua y produce hidróxido de calcio
3. El sulfuro de hierro (II) se produce cuando reacciona el azufre y el hierro en su forma atómica
4. El ácido sulfuroso se descompone por la acción de calor en dióxido de azufre gaseoso y agua
5. El carbonato de calcio se descompone por la acción de calor en oxido de calcio y dióxido de carbono gaseoso.
6. El magnesio reacciona con el ácido clorhídrico y produce dióxido de magnesio e hidrógeno gaseoso.
AYUDAAAAA
Responder:
2H2 + O2 → 2H2O
CaO + H2O → Ca (OH) 2
Fe + S → FeS
H2SO3 → SO2 + H2O
CaCO3 → CaO + CO2
Explicación:
2H2 + O2 → 2H2O
2 moléculas de hidrógeno gaseoso reaccionan con oxigente para producir 2 moléculas de agua
CaO + H2O → Ca (OH) 2
El óxido de calcio reacciona con el agua para producir hidróxido de calcio.
Fe + S → FeS
El hierro reacciona con el azufre para producir sulfuro de hierro.
H2SO3 → SO2 + H2O
Por descomposición, el ácido sulfuroso se descompone para producir dióxido de azufre y agua.
CaCO3 → CaO + CO2
El carbonato de calcio se descompone para producir óxido de calcio y dióxido de carbono.
Name the three parts of the brain and one function of that part
cerebrum: interprets touch, vision, hearing, speech, etc.
cerebellum: coordinate muscle movements, posture, and balance
brainstem: connects cerebrum and cerebellum. performs automatic functions, breathing, body temperature, sneezing, etc.
Explain what a conjugate acid is and what a conjugate base is.
Answer:
A conjugate acid, within the Brønsted–Lowry acid–base theory, is a chemical compound formed when an acid donates a proton to a base—in other words, it is a base with a hydrogen ion added to it, as in the reverse reaction it loses a hydrogen ion
Explanation:
According to the A.P.E.X. glossary:
A conjugate acid is the form a base takes after it gains a hydrogen ion (or proton), and a conjugate base is the form an acid takes after it loses a hydrogen atom (or proton).
Which statement is true? a. Energy is capability of doing work b. A cup of water has kinetic energy c. Kinetic energy is stored energy in substances. d. Potential energy is enery in motion. e. Heat and electricity are different forms of energy
Answer:
Option A an E.
Explanation:
Energy can be described as the capability to do work. It is what has to be transferred to an object in order to get this object to do work. Energy can be in various forms such as heat energy, kinetic, potential, electrical, chemical, nuclear etc.
It takes energy to do quite a number of things, from cooking food to driving and also in engaging in exercises.
Sound Wave, Ripple in water, Guitar String, TV Signal, Which one does not belong? Why?
Answer:
The TV signal.
Explanation: Hope this is right! :)