Answer: One mol of NaCl (6.02 x1023 formulas) has a mass of 58.44 g.
To go from grams to moles, divide the grams by the molar mass. 600 g58.443 g/mol = 10.27 mol of NaCl.
HOPE THIS HELPS HAVE A AWESOME DAY❤️✨Explanation:
Which is an example of a physical change?
gasoline combusting
cake baking
salt dissolving
iron rusting
Answer:
salt dissolving
Explanation:
Hope this helps!
Which students propose a conservation strategy that represents reducing the use of
natural resources?
A Students W and Z
B Students W and X
C Students X and Y
D Students Y and Z
Answer:
student A
Explanation:
PLEASE HELP DUE IN 52 MINUTES
Answer:
ionic are; 3, 6, 7, 8
covalent are; 1, 2, 4, 5
Explanation:
There is a gas pressure in a container that is 123kPa what is the pressure in atmospheres ?
Answer:
In strict SI units (highly recommended), express n in moles, R is the universal gas constant R=8.314Jmol−K , T is the temperature in Kelvins, and the volume V is in m3 . The resulting pressure P will be in Pa. R=0.082054L−atmmol−K , in which case the pressure is calculated in atm.
Which type of prevailing wind would carry more water vapor (humidity)? (Choose one)
a. A global wind moving over the ocean
b. A global wind moving over land
Answer:
a. A global wind moving over the ocean
Explanation:
The surface water both north as well as
south of the equator do experience
upwelling. There is a rise of the nutrients to the surface . Ocean surface currents occur as a result of global wind as well as the shape of ocean basin and Coriolis effect
11.
The characteristics of a group of elements are listed in the table.
Characteristics of a group of Elements
• Solid at room temperature
• Good conductor of electricity
• Atoms have one valence electron
Which of these elements is in this group?
A. Sodium
B. Phosphorus
C. Bromine
D. Neon
Answer:
Sodium
Explanation:
I dont know but its a wild guess
Answer:
sodium
Explanation:
its solid at room temp, most metals are good conductor of electricity and also its in group 1A so it has one valence electron
What happens during a chemical reaction?
The reactants’ bonds form, and bonds of the products break.
The bonds of both the reactants and the products form.
The reactants’ bonds break, and bonds of the products form.
The bonds of both the reactants and the products break.
Answer:
The reactants’ bonds break, and bonds of the products form.
Explanation:
True or False: if chemicals behave in a similar way they are grouped together on the periodic table
Answer:
Explanation: it is true
Please help me with this.
And show all work as well ASAP!!
Answer: The partial pressure of oxygen is 187 torr.
Explanation:
According to Raoult's law, the partial pressure of a component at a given temperature is equal to the mole fraction of that component multiplied by the total pressure.
[tex]p_1=x_1p_{total}[/tex]
where, x = mole fraction
[tex]p_{total}[/tex] = total pressure
[tex]x_{oxygen}=\frac{\text {moles of oxygen}}{\text {total moles}}[/tex],
[tex]x_{oxygen}=\frac{3.0}{12.33}=0.243[/tex],
[tex]p_{oxygen}=0.243\times 770torr=187torr[/tex]
Thus the partial pressure of oxygen is 187 torr.
Why is gold considered matter?
O A. Gold takes up space and has mass.
B. Gold can be used to make different products.
C. Gold is very valuable.
O D. Gold can be heated and cooled.
Answer:
A
Explanation:
Anything which takes up space and has mass is considered matter.
Please mark Brainliest if this was helpful!
Which of the following is not a stimulus?
A hearing a loud noise
B. sneezing
C. touching a hot object
D. tasting a lemon
Answer:
B. sneezing
Explanation:
Because every other one is an action resulting in stimulation.
4) Calculate the net force *
3 N
10-7= 3
the arrows are opposing each other.
Answer:
The net or resultant force depende on the direction we can easily understood the directions are opposite .Force is vector so if vectors are opposite we difference the two vectors.
10N-7N=3N
When heating a liquid in a test tube, which of the following safety precautions should you take?
A.
Wear latex gloves.
B.
Heat the test tube on an open flame if possible.
C.
Put a tight lid on the test tube.
D.
Angle the test tube away from yourself and others.
Answer:
D
Explanation:
so that incase the liquid being heated splashes it doesn't land on anyone's skin
I need help, please answer
Answer:
it explodes
Explanation:
Answer:
Mrs girl I'm sorry I don't know
I just need the points
A tall stack of books is sitting on a table. One of the reasons the book stay where they are is because-
Choices:
A: The chair is helping to hold the table up.
B: The table is exerting a balanced force on the books.
C: The books are exerting an unbalanced force on the table.
D: The books keep shifting enough to keep the stack balanced.
Please help me!
Photosynthesis and cellular respiration have a unique relationship in that the products of one process are the reactants of the other. For example the products of photosynthesis are reactants of cellular respiration.
Select ALL of the molecules that are produced in photosynthesis and then used in cellular respiration.
A) ATP
B) water
C) oxygen
D) glucose
E)carbon dioxide
Answer:
the answer is c) oxygen and D) glucose. Read the question correctly. it says what is *produced* in photosynthesis and *used* in cellular respiration.
Explanation:
photosynthesis produced oxygen and glucose to which cellular respiration uses (glucose and oxygen) to produce carbon dioxide and water. so carbon dioxide and water ARE NOT the answer to this.
also I took the test so yeah
The molecules that are produced in photosynthesis and then used in cellular respiration include the following: oxygen and glucose.
PHOTOSYNTHESIS:
Photosynthesis is the process whereby green plants obtain their own food using energy from sunlight. Photosynthesis generally combines carbon dioxide and water molecules to produce glucose and oxygen as products. 6CO2 + 6H2O → C6H12O6 + 6O2CELLULAR RESPIRATION:
Cellular respiration is the process whereby living organisms obtain energy by breaking down food molecules. Cellular respiration uses the products of photosynthesis, which are glucose and oxygen, to synthesize energy and giving off carbon dioxide and water as products. C6H12O6 + 6O2 → 6CO2 + 6H2OTherefore, molecules that are produced in photosynthesis and then used in cellular respiration include the following: oxygen and glucose.Learn more at: https://brainly.com/question/1388366?referrer=searchResults
Are humans more similar to trees or bacteria? How do you know?(1 point)
A
Humans are more similar to bacteria because trees cannot move around their environment.
B
Humans are more similar to trees because bacteria are too small to see.
C
Humans are not similar to trees or bacteria. Humans are a special species that is not related to any other species on Earth.
D
Humans are more similar to trees because all plants and animals are part of the same domain.
Answer:
a
Explanation:
Answer:
Option D
Explanation:
A and B both make sense to some level.
For option A,trees can only move while bacteria and humans can both move and locomote so there's that similarity
For option B,humans and plants are not micro organisms but bacteria are so there's that similarity
Option C is just not true
Option D is the right answer thus both humans and animals are eukaryotes
what is the uncertian digit in 0.054 g
Answer:
5.4g
Explanation:
Which of the following describes the middle layers of the earth
Which mutation in a fruit fly could be passed on to its offspring
The process of sediment being dropped off in a new location is called ____________?
Deposition, because it is the dropping of eroded material
Which of the following gas samples would contain the same amount of gas as 200 mL of helium, He(g), at 25° C and 1 atm?
Select one:
a. all the above
b. 200 mL of neon, Ne (g), at 25° C and 1 atm
c. 40 mL of methane, CH4 (g), at 25° C and 1 atm
d. 400 mL of hydrogen, H2 (g), at 25° C and 1 atm
Need done asap! Will give 5 stars!
Answer:
[tex]200\; \rm mL[/tex] of neon [tex]\rm Ne\, (g)[/tex] at [tex]25^{\circ} \rm C[/tex] and [tex]1\; \rm atm[/tex] (the second choice) would contain an equal number of gas particles as [tex]200\; \rm mL\![/tex] of [tex]\rm He \, (g)[/tex] at [tex]25^{\circ} \rm C\![/tex] and [tex]1\; \rm atm\![/tex] (assuming that all four gas samples behave like ideal gases.)
Explanation:
By Avogadro's Law, if the temperature and pressure of two ideal gases is the same, the number of gas particles in each gas would be proportional to the volume of that gas.
All four gas samples in this question share the same temperature and pressure. Hence, if all these gases are ideal gases, the number of gas particles in each sample would be proportional to the volume of that sample. Two of these samples would contain the same number of gas particles if and only if the volume of the two samples is equal to one another.
The second choice, [tex]200\; \rm mL[/tex] of neon [tex]\rm Ne\, (g)[/tex] at [tex]25^{\circ} \rm C[/tex] and [tex]1\; \rm atm[/tex], is the only choice where the volume of the sample is also [tex]200\; \rm mL \![/tex]. Hence, that choice would be the only one with as many gas particles as [tex]200\; \rm mL\![/tex] of [tex]\rm He \, (g)[/tex] at [tex]25^{\circ} \rm C\![/tex] and [tex]1\; \rm atm\![/tex].
If Captain America exerted a force of 50N and Iron Man exerted a force of 65N in the opposite direction, what would the outcome be? What is the net force? Who would be pushed backward?
What is the molarity of a solution made from dissolving 3.0 moles of Saline (NaCl) in 0.25 L of solution?
Answer:
D
Explanation:
all ya got to do is divide the moles from the solution... so 3.0 divided by 0.25. put it in a calculator
hope this helps
The molarity of a solution made from dissolving 3.0 moles of Saline (NaCl) in 0.25 L of solution is 12M.
What is Molarity?Molarity of a given solution is known as the total number of moles of solute per litre of the solution. A solution that is 1.00 molar (written 1.00 M) contains 1.00 mole of solute for every liter of solution.
Molarity = (No. of moles of solute ÷ Volume of solution in liters)
The unit of molarity is mol L⁻¹.
Molarity is temperature dependent because as temperature changes, volume of the solution also changes.
Given,
3.0 moles of Saline (NaCl)
Volume of solution = 0.25L
Molarity = (No. of moles of solute ÷ Volume of solution in liters)
Molarity = 3 ÷ 0.25 = 12 M
Therefore, The molarity of a solution made from dissolving 3.0 moles of Saline (NaCl) in 0.25 L of solution is 12M.
Learn more about molarity, here:
brainly.com/question/8732513
#SPJ2
Due tonight! Please help!
Please show your work and don’t spam or delete answers
I will mark Brainliest!
Calculate the concentration in grams per liter of a 450.0 mL solution containing
0.0762 moles of iodine gas (I2)
Answer:
42.98 g/L
Explanation:
When does an acid strength increase
A) increasing polarity and increasing bond strength
B)increasing polarity and decreasing bond strength C)decreasing polarity and increasing bond strength D)decreasing polarity and decreasing bond strength
Plz answer mee
Answer: A
Explanation: The increase in acid strength with increasing number of terminal oxygen atoms is due to both an inductive effect and increased stabilization of the conjugate base.
During a titration a student found that 20.0cm3 of sodium carbonate solution
neutralised 27.9 cm3 of 0.500 mol/dm3 nitric acid solution.
Calculate the concentration of the sodium carbonate solution in mol/dm3. Give
your answer to 3 significant figures.
Answer: The concentration of [tex]Na_2CO_3[/tex] required is [tex]0.349mol/dm^3[/tex]
Explanation:
According to the neutralization law,
[tex]n_1M_1V_1=n_2M_2V_2[/tex]
where,
[tex]n_1[/tex] = basicity of [tex]HNO_3[/tex] = 1
[tex]M_1[/tex] = molarity of [tex]HNO_3[/tex] solution = [tex]0.500 mol/dm^3[/tex]
[tex]V_1[/tex] = volume of [tex]HNO_3[/tex] solution = [tex]27.9cm^3[/tex]
[tex]n_2[/tex] = acidity of [tex]Na_2CO_3[/tex] = 2
[tex]M_1[/tex] = molarity of [tex]Na_2CO_3[/tex] solution =?
[tex]V_1[/tex] = volume of [tex]Na_2CO_3[/tex] solution = [tex]20.0cm^3[/tex]
Putting in the values we get:
[tex]1\times 0.500\times 27.9=2\times M_2\times 20.0[/tex]
[tex]M_2=0.349mol/dm^3[/tex]
Therefore, concentration of [tex]Na_2CO_3[/tex] required is [tex]0.349mol/dm^3[/tex]
True or False
All cells are the same on the inside
HELP ME!
which two statements describe events that help drive tectonic plate movement?
A. convection currents cause hotter magma to rise and cooler magma to sink.
B. Subducting plates cause cooling at convergent boundaries
C. Thermal energy from Earth's core is transferred outward to the mantle by conduction
D. Energy from the Sun heats magma beneath earth's surface
Answer:
D B
Explanation:
What is the mass of 1.55 x 10^24 molecules of chlorine?
Explanation:
Use the molecular formula to find the molar mass; to obtain the number of moles, divide the mass of compound by the molar mass of the compound expressed in grams.