Answer:
350.64g
Explanation:
So first you must know that M is mol/L
Next solve the problem using dimensional analysis
2L NaCl (3 mol/L) = 6 mol NaCl
After you got the number of moles you should look at your periodic table to find the molar mass
I see that it's 58.44g/mol
Use dimensional analysis again!
6 mol (58.44g/mol) = 350.64g
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HELP NOW PLEASE NO LINKS HELP ASAP RIGHT NOW.
Write a formula that you can use in order to calculate the number of neutrons in an atom:
Number of Neutrons=____________________________
Answer:
number of neutrons = mass number - number of protons
¿Qué es una fuente de luz secundaria?
Answer:
Las fuentes secundarias son testimonios de segunda mano elaborados con posterioridad a los hechos ocurridos y basados en la información de las fuentes primarias, por ejemplo: libros y revistas, películas, video-documentales, series televisivas, textos escolares y mapas temáticos.
Answer:
Las fuentes de luz secundarias son aquellas que reflejan la luz que produce otra fuente. Por ejemplo: la luz de la luna (refleja la luz que produce el Sol), un espejo.
Explanation:
I need this ASAP
A young scientist wants to focus on drug creation. What is one of the first
things he should do?
O A. Look into trends of various diseases and their effects on society.
B. Research available drugs for treating illnesses such as cancer and
heart disease, as well as the side effects of these drugs.
C. Test a composite material in the lab to see how it can be
improved
D. Make a plan for how to conquer a disease with drugs.
Answer:
A :))
Explanation:
They should look into the different types of diseases and their effects on society before anything else so they know what type of drugs he should look into.
What is one benefit that nuclear power plants currently provide for our environment? O A. They provide energy while increasing natural gas pollution. B. They provide energy while increasing biomass by-products. OC. They provide energy without increasing carbon dioxide emissions. OD. They provide energy without increasing nuclear waste.
Calculate the specific heat capacity of the unknown metal given the
following information; the mass of the metal is 225 g, the temperature
raises by 13C and the energy absorbed was 1363 joules.
A. 0.466 j/gC
B.1.02j/gC
C.0.96 j/gC
D.2.14 j/gC
Answer: The specific heat capacity of the unknown metal given is [tex]0.466 J/g^{o}C[/tex].
Explanation:
Given: Mass = 225 g
Change in temperature = [tex]13^{o}C[/tex]
Heat energy = 1363 J
The formula used to calculate specific heat is as follows.
[tex]q = m \times C \times \Delta T[/tex]
where,
q = heat energy
m = mass of substance
C = specific heat
[tex]\Delta T[/tex] = change in temperature
Substitute the values into above formula as follows.
[tex]q = m \times C \times \Delta T\\1363 J = 225 g \times C \times 13^{o}C\\C = \frac{1363 J}{225 g \times 13^{o}C}\\= 0.466 J/g^{o}C[/tex]
Thus, we can conclude that the specific heat capacity of the unknown metal given is [tex]0.466 J/g^{o}C[/tex].
¿Cómo se llama el proceso en donde se transforma el oxígeno en dióxido de carbono
Answer:
respiración
Explanation:
A dog runs 6 km in 30 minutes. What is the dog’s average speed in km/h?
here's your solution
==> distance covered = 6 km
==> time taken = 30 min
==> time in hour = 30/60 = 1/2hr
= speed = distance/time
==> speed = (6)/(1/2)
==> speed = 12 km/hr
hope it helps
When a dog run 6 km in 30 minutes then dogs average speed will be 12 km/h.
What is average speed?The average speed of something is computed by dividing the number distance travelled by the total time it took to travel that distance. Average speed can be determined by the formula:
V=d/T
where, V is average speed , d is distance and T is time.
It is given that , d= 6 km and T= 30 minutes(0.5 h).
Calculation of average speed is show below:
Now, puts the value of given data in average speed formula.
Average speed(V )= 6/ 0.5 = 12 km/h
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whats the molar volume (of a solution)?
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
Answer:
Molarity can be used to calculate the volume of solvent or the amount of solute. The relationship between two solutions with the same amount of moles of solute can be represented by the formula c1V1 = c2V2, where c is concentration and V is volume.
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
4) When solid sodium nitrate is heated, solid sodium nitrite and oxygen gas
(02) are produced. Write the balanced chemical equation for this chemical
reaction using the correct chemical formulas and include conditions (s, l, g, or
aq). Put your answer in the box below.
Write the balanced chemical equation and state what type of chemical reaction this is.
Answer: The balanced chemical equation is [tex]2NaNO_{3}(s) + Heat \rightarrow 2NaNO_{2}(s) + O_{2}(g)[/tex] and it is a decomposition chemical reaction.
Explanation:
A chemical reaction in which single compound is decomposed into two or more species is called a decomposition reaction.
For example, [tex]NaNO_{3}(s) + Heat \rightarrow NaNO_{2}(s) + O_{2}(g)[/tex]
As the compound [tex]NaNO_{3}[/tex] is decomposing to given two different substances. So, it is a decomposition reaction.
Here, the number of atoms on reactant side are as follows.
Na = 1N = 1O = 3The number of atoms on product side are as follows.
Na = 1N = 1O = 4To balance this equation, multiply [tex]NaNO_{3}[/tex] by 2 on reactant side and multiply [tex]NaNO_{2}[/tex] by 2 on product side. Therefore, the equation will be rewritten as follows.
[tex]2NaNO_{3}(s) + Heat \rightarrow 2NaNO_{2}(s) + O_{2}(g)[/tex]
Here, number of atoms on reactant side are as follows.
Na = 2N = 2O = 6The number of atoms on product side are as follows.
Na = 2N = 2O = 6Hence, this equation is balanced.
Thus, we can conclude that the balanced chemical equation is [tex]2NaNO_{3}(s) + Heat \rightarrow 2NaNO_{2}(s) + O_{2}(g)[/tex] and it is a decomposition chemical reaction.
What is the sum of the coefficients for the balanced chemical equation below ?
Answer:
9
[tex]4X \: + \: 3Y _{2} \: → \: 2X _{2} Y _{3}[/tex]
Sum = 4+3+2
=9
Which term is used to describe a natural change in the sequence of an organism’s DNA?
What is the mass of oxygen gas (O2) needed when 8.75 x 1070 molecules of methane (CH4) combust to form carbon dioxide (CO2)? (Choose closest answer)
CH4 + 2O2 -> CO2(g) + 2H2O
A.
8.43 x 1093 grams
B.
9.299 x 1048 grams
C.
2.32 x 103 grams
D.
9.08 grams
E.
my mom
Calculate the number of moles of Al2O3 that are produced when 1.2 mol of FeO is used in the following reaction.
2Al(s) + 3FeO(s) -> 3Fe(s) + Al2O3(s)
A.
3.6 mol Al2O3
B.
3.6 mol Fe
C.
0.40 mol Fe
D.
0.40 mol Al2O3
E.
0.60 mol Al2O3
F.
2.4 mol Al2O3
Answer:
D
Explanation:
how many moles are there in 302 grams of Ca2N2
Answer:
2.0371352212585085
Explanation:
(SCIENCE)Which conditions are needed for a hurricane to form?
A.
warm, dry air rising over warm areas on the land
B.
warm, dry air rising over warm areas in the ocean
C.
warm, moist air rising over warm areas on the land
D.
warm, moist air rising over warm areas in the ocean
Answer:
I think the answer is D, but if I'm wrong PLEASE TELL ME!
Explanation:
For one hurricane to form, there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air as creating the clouds of the storm. As it rises, the air in a hurricane rotates.
The equation below is balanced. H2(g) + Cl2(g) → 2 HCl(g)
What is the total number of moles of HCl(g) produced when 3 moles of H2(g) is completely
consumed?
2 moles
6 moles
3 moles
5 moles
What is the mass number of an atom that has 12 neutrons and 11 protons?
24
12
11
23
Answer:
23
Explanation:
What may cause a species to become less genetically diverse?
A. Isolation from members of its species
B. Low population numbers
C. Both isolation and low population numbers
D. None of these
"science"
Answer:
b i think im not fully sure
Explanation:
Answer:
C- Both isolation and low population
Explanation:
90 percent sure
What do greenhouse gases do in our atmosphere?
Explanation:
Greenhouse gases are gases in Earth's atmosphere that trap heat. They let sunlight pass through the atmosphere, but they prevent the heat that the sunlight brings from leaving the atmosphere.
Which of the following would be a strong base?
HNO3
LiOH
NaNO3
KHSO4
Can someone pls tell what to put in 6 and 7 pls no links ???
Se tiene una solución de vinagre cuya masa es de 360 gramos y densidad 0,9 g/ml. Si el porcentaje en volumen de soluto es 8%, ¿cuál es el volumen del soluto (ácido acético)?
Answer:
a
Explanation:
What trait of a wave is described by its wavelength?
O
A. The speed and direction that the wave is traveling
B. The distance from one wave peak to the next wave peak
C. The distance from the peak to the bottom of a wave
ОО
D. The number of waves that pass a point in 1 second
Help plisss!!!
Answer:
The distance from one wave peak to the next wave peak
Explanation:
a pex
The trait of a wave that is described by its wavelength is the speed and direction that the wave is traveling. Therefore, the correct option is option A.
Energy is moved around the world in two main ways: mechanical waves as well as electromagnetic waves. Mechanical waves include air and water waves caused by sound. A disruption or vibration within matter, either solid, gas, liquid, and plasma, is what generates mechanical waves.
A medium is described as material through which waves are propagating. Sound waves are created by vibrations inside a gas, while water waves are created by vibrations inside a liquid (air). The trait of a wave that is described by its wavelength is the speed and direction that the wave is traveling.
Therefore, the correct option is option A.
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Which of the following is NOT true about sparks from electrostatic
discharge?
a) Sparks can cause explosions at grain elevators.
b) Sparks can damage sensitive electronics.
c) Sparks can ignite gases used for anesthesia in an operating room.
d) Sparks can damage heart pacemakers.
e) Sparks are not dangerous in any way.
Answer:
yes jrs true
Explanation:
In some ways, sparks are harmful. So, the statement e is not true.
What is meant by spark in electrostatics ?When an ionized, electrically conductive channel is formed through a typically insulating substance by a sufficiently strong electric field, it results in a sudden electrical discharge known as an electric spark.
Here,
Sparks are the sudden electric discharges; therefore, we can say that they are capable of causing damage to the sensitive electronic devices.
Also, a small, sudden ignition spark created in grain elevators can eventually cause mild explosions.
In an operating room, sparks can start an explosion of anesthetic gas.
Heart pacemakers can be harmed by sparks.
So we can say that sparks are capable of causing many types of damages. So, it is dangerous in someway.
Hence,
In some ways, sparks are harmful. So, the statement e is not true.
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A person walks 2 miles in 30 minutes. Figure out how many feet per second they traveled.
Answer:
5.8667 ft/s
Explanation:
Can someone tell me how to draw a atomic model for Cd
Explanation:
there you go you can just look up atomic model for CD and click images
What is the first stage of a lunar eclipse?
The first stage of a lunar eclipse:
Penumbral eclipse.
There are 7 stages of a total lunar eclipse. The first one is when the Penumbral eclipse begins. his begins when the penumbral part of Earth's shadow starts moving over the Moon. This phase is usually not feasible to be seen with the naked eye.
If a screwdriver was used to pry open a door, where would scratches/striations be found?
Answer: Most likely around the knob area or by the bolts that hold the door up.
Explanation:
If you attempted to pry open a locked window with a screwdriver, the screwdriver would leave a tool mark on the window and windowsill.
The impressions made by a tool when it comes in contact with an object are called as tool marks. These tool marks exhibit a variety of impressions depending upon the type of tool, its shape and its use. They are classified into different types depending upon the force with which they are made.
The study of tool marks is very useful in forensic science which includes information about the analysis of tool marks at the crime scene and in the laboratory, the interpretation and assessment of challenges for examination and interpretation and also the way in which tool mark evidence can be presented in a courtroom.
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Describethe role of trees and photosynthesis in the carbon cycle
Answer:
Tree's absorb so much carbon dioxide from the atmosphere and store the carbon in their biomass