Answer:
A.)neutral
because their ions have equal and opposite charges whose resultant charge is zero
A 2.5-liter sample of a gas has 0.30 mole of the gas. If 0.15 mole of the gas is added, what is the final volume of the gas? Temperature and pressure remain constant.
Answer:
1.125
Explanation:
I think it is his because if you add 0.30 and 0.15 it adds up to 0.45 so you just multiply 0.45 and 2.5 and then it gives you 1.125. HOPE IT HELPS.
. If 30.0 grams of copper (II) chloride reacts with 40.0 grams of sodium nitrate, what is the limiting reactant?
Answer:
The limiting reactant is copper (II) chloride
Explanation:
here you go
A scientist is adding oxygen to iron in a chemical reaction to create rust. At what point during
this reaction will the oxygen and iron quit making rust?
Answer: What type of chemical reaction is rusting of iron?
Rust is formed when iron reacts with oxygen in moist air. The following chemical equation represents the reaction: 4Fe + 3O2 → 2Fe2O3. Water is necessary for the oxidation reaction to occur and to facilitate transport of the electrons.
The first asteroid to be discovered is Ceres. It is the largest and most massive asteroid is
our solar system’s asteroid belt, having an estimated mass of 3.0 x 1021 kg and an orbital
speed of 17900 m/s. Determine the amount of kinetic energy possessed by Ceres.
Answer:
kinetic energy possessed by Ceres = 4.806 × 10^(29) J
Explanation:
We are given;
Estimated mass; m = 3 × 10^(21) kg
Orbital speed; v = 17900 m/s
Formula for kinetic energy is;
K.E = ½mv²
K.E = ½ × 3 × 10^(21) × 17900²
K.E = 4.806 × 10^(29) J
Thus;
kinetic energy possessed by Ceres = 4.806 × 10^(29) J
Compare and contrast a driver of a car and truck, and list defensive driving no links
Answer:
These defensive driving skills can help you avoid the dangers caused by other ... being aware of the cars around you, checking your mirrors — the list goes on. ... It's not just teen drivers who are at fault: People who have been driving for a while ... car and a slow-moving truck in the same lane, it's a pretty sure bet the driver ...
Explanation:
How many grams in 4.50 moles of NaNO3?
Answer:
382.5 grams
Explanation:
Find the molar mass of NaNO₃ and then multiply the number of moles by that molar mass :)
Which is not a physical state of matter?
A. Solid
B. Liquid
C. Plasma
D. Gas
Answer: Plasma
Explanation:
Answer: Plasma
Explanation:
what is one way that fish interact with a coral reef
Answer:
The second answer. Fish hide within the coral. Hope this helps!!!!
Describe the skier function of the law of conservation of energy
Answer:
Energy can't be created nor destroyed but it can be transformed
Explanation:
WILL GIVE THE BRAINLIEST
in the reaction 2CO(g) +O2(g)------> 2CO2(g) vwhat is the ratio of moles of CO used to moles O2 used?
Answer:
Oxygen: Carbon Dioxide
O2:2CO2
1:2
Si desea preparar 300 gramos de una solución de azúcar en agua que tenga una concentración de 20% m/m en cuanto gramos de soluto de azúcar se necesita?
Answer:
[tex]m_{soluto}=60g[/tex]
Explanation:
¡Hola!
En este caso, al considerar la unidad de concentración de porcentaje masa/masa, podemos escribir su fórmula como:
[tex]\%m/m=\frac{m_{soluto}}{m_{solucion}}*100\%[/tex]
Podemos identificar la masa de soluto (azúcar) como la incógnita, y resolverla como se muestra a continuación:
[tex]m_{soluto}=\frac{\%m/m*m_{solucion}}{100\%}\\\\m_{soluto}=\frac{20\%*300g}{100\%}\\\\m_{soluto}=60g[/tex]
¡Saludos!
An element is BEST described as a substance that:
is made of atoms
Cannot be broken down into other substances
Contains water
Is a metal used in kettles
Answer:
Cannot be broken down into other substances
Explanation:
Balance the following:
Answer:
[tex]Na_3PO_4+Al(OH)_3\rightarrow3NaOH+AlPO_4[/tex]
An object in space (or moon) that orbits a planet or minor planet. *
Answer:
A minor-planet moon is an astronomical object that orbits a minor planet as its natural satellite.
Explanation:
An object in an orbit is called a satellite. A satellite can be natural, like Earth or the moon. Many planets have moons that orbit them. A satellite can also be man-made, like the International Space Station.
Lower the Room temp. to -10.0 °C, wait until all the water has frozen, and then wait a little while more. What happens to the ice temperature after all the water is frozen?
No link or Files Plzz
Answer:
the ice becomes -20 degrees celcius colder
Explanation:
Harold’s car has a fuel efficiency of 35 miles per gallon. Frank’s car has a fuel efficiency of 12 kilometers per liter. Who gets better gas milage, Harold or Frank?
Answer: Harold car has better mileage
Explanation: US gallon is 3.785 litres and one mile is 1.6 km.
35 · 1.6 km/ 3.785 l = 14.8 km/l
The Harold's car has a fuel efficiency of 35 miles per gallon and has better gas mileage.
What is efficiency?The efficiency is defined as the peak level of performance that uses the least amount inputs to achieve the highest amount of output.
Effectiveness is the ability to produce a better result, one that delivers more value or achieves a better outcome.
Efficiency is expressed as
Efficiency = output / input
The mileage of Harold's can be calculated as:
US gallon has 3.785 liters and 1 mile is 1.6 km
Thus mileage = 35 x 1.6 km / 3.785 l
= 14.8 km/l
Mileage of Frank's car = 12 x 1.6 km / 3.785 l
= 5.07 km/l
Thus, the Harold's car has a fuel efficiency of 35 miles per gallon and has better gas mileage.
To learn more about efficiency, refer to the link below:
https://brainly.com/question/13828557
#SPJ2
Which of the following statements describes the elements in group 16 of the periodic table?
No links!
Answer:
C.
Explanation:
someone help plz!
what is a Hydrogel?
Answer:
Hydrogels can be defined as systems comprising of three-dimensional, physically or chemically bonded polymer networks entrapping water in intermolecular space.
Explanation:
2Al(S)+1.5O2(S)→Al2O3(s) H= -1676.0 KJ
2Fe + 1.5O2 (S) →Fe2O3(S)
Then the enthalpy change for the following equation is _______KJ
2Al + Fe2 O3(S) → 2Fe +Al2O3(s)
pls i dont have time
Answer:
[tex]∆H = - 1676.0 - 0 \\ = - 1676.0 \\ heat \: gained \: in \: reaction \: of \: iron \: and \: oxygen \: is \: zero \: because \: it \: is \: not \: given[/tex]
Really need help with the rest of them, please it's due in 20 minutes
Answer:
chlorine is for pool
Explanation:
hope is help
what is a dehydrate in chemistry?
Answer:
hydrate agen
Answer:
In chemistry, a dehydration reaction is a conversion that involves the loss of water from the reacting molecule or ion.
Dehydration reactions are common processes, the reverse of a hydration reaction.
Common dehydrating agents used in organic synthesis include sulfuric acid and alumina.
Explanation:
good luck
How many ammonia molecules can be made with 1 N2 and 3 H2? Please explain.
Answer:
You have described a scenario where nitrogen is the limiting reagent since:
2 N2 + 6 H2 → 4 NH3
You could make four molecules of ammonia and have four molecules of hydrogen left over.
so if there is 16 protons and 16 neutrons what would be the charge right now?
Answer:
16
Explanation:
Protons have a positive net charge,
Neutrons being neutral don't have a net charge.
Each proton is one extra net charge if you have 16 of them and the neutrons don't affect your net charge you will have 16.
What is a solution?
a
a homogeneous mixture with particles between .01 and 1 nm
b
a homogeneous mixture with particles smaller than .01nm
c
a heterogeneous mixture with particles between .01 and 1 nm
d
a heterogeneous mixture with particles smaller than .01nm
What is the speed of a wave on a guitar string with a mass of
0.5 kg, if it takes 0.2 seconds for the wave to travel down the
0.9 m string.
Answer: 4.5
Explanation:
The ability of a match to burn is an example of a physical property.
Answer:
true
Explanation:
Please help!! I have 10 minutes left!!
Answer:
I believe it is hydrogen for the first and methane for the second.
Explanation:
Answer to 8: The most dangerous or harmful gas to humans in the atmosphere would be carbon dioxide. But reserchers have found that methane levels in ancient air samples and found that scientists have been vastly underestimating the amount of methane humans are emitting into the atmosphere via fossil fuels.
Answer to 7: The type of gases present are as critical to density as elevation and gravity, and all are interrelated. Certain atmospheric gases will create thick atmospheres. For example, atmospheres with abundant hydrogen tend to be thicker as gases will combine with hydrogen for greater mass.
Hope this helps!
2NaCl ---> 2Na + Cl2
What are the atoms of the products
Answer: ...
Explanation:
Sodium, chlorine
Answer:
2Na = 2 Sodium [has 2 atoms]
Cl2 = Dichlorine (Chlorine) [has 2 atoms]
Is this what you wanted?? I'm not entirely sure if this is the answer you were looking for.
NEED HELP!! What types of waves are transmitted from the H-E-L-P device ?
Answer:
What do you mean need more details
Explanation:
Since a help device is a a communication gadget, we know that the help device will make use of radio waves.
What is a help device?A help device refers to a device that can be used for emergency communication. They are basically communication gadgets.
We must note that our communication gadgets such as television, radio, cell phone etc all make use of radio waves. Hence a help device would make use of radio waves.
Learn more about radio waves: https://brainly.com/question/3393755?
are you chemistry because you just blew up my heart
Answer:
i needed that lol
thank you
Explanation:
