Answers
Answer:
d
Explanation:
Answer:
Its d
Explanation:
Ik you already know this, I just wanted the points tbh
Related Questions
Help?
What happens in the redox reaction below? Select all that apply.
Na + F + NaF
A- Fluorine loses an electron.
B- Sodium loses an electron.
C- Sodium gains an electron.
D- Fluorine gains an electron.
E- Sodium is oxidized.
Answers
which two geologic events occur very slowly as a result of tectonic forces and movement.
A. Destruction of forests
B. Seafloor spreading
C. Glacier formation
D. Mountain range formation
PLZZ HELPP!!!
Answers
Answer:
mountain range formation, and seafloor spreading
Explanation:
I TOOK THE TEST!!
and it was right
Ram has power of 550 watt.What does it mean?
Answers
Answer:
for electricity, watts as in back to the future "1.21 jigga watts"!
Explanation:
how many molecules of HCI would react with 1 mol of MgO?
Answers
Answer:
C.
Explanation:
MoleculesHcl = (1 molMgO/1)(2molHCL/1molMGO)(6.02x10^23/1molHCL) = 1.204x10^24
what type of reaction is 2 Al2O3(s) → 4 Al(s) + 3 O2(g)
Answers
Answer:
Decomposition or cracking
Explanation:
Given reaction:
2Al₂SO₃ → 4Al + 3O₂
This reaction is a decomposition or cracking reaction.
In such a reaction, two or more products are formed from a single reactant; e.g;
A → B + C
The breakdown of a compound into component individual elements or other compounds falls into this type of reaction.
If you 0.123 moles of CO2 is placed at 300.1 K and 2.91 atm pressure. Determine its volume.
show with work
Answers
Answer:
1.04 L
Explanation:
why saturated fatty acid can’t create kink ?
Answers
Student places the ends of the wires The piece of iron shown in the picture which Physical property of iron is being tested in this picture
A. Thermal conductivity
B. Ductility
C. Electrical conductivity
D. Magnetism
Answers
Answer: C
Explanation:
Electrical conductivity
How many moles are there in 256 g of silicon
Answers
Pls pls pls pls pls pls help
Answers
A 350 mL air sample collected at 308 K has a pressure of 73 kPa. What
will be the pressure of the sample if it is allowed to expand to 425 mL at
333K?
Answers
Answer:
65 kPa
Explanation:
Step 1: Given data
Initial pressure (P₁): 73 kPaInitial volume (V₁): 350 mLInitial temperature (T₁): 308 KFinal pressure (P₂): ?Final volume (V₂): 425 mLFinal temperature (T₂): 333 KStep 2: Calculate the final pressure of the air sample
If we assume an ideal gas behavior, we can calculate the final pressure of the air sample using the combined gas law.
P₁ × V₁/T₁ = P₂ × V₂/T₂
P₂ = P₁ × V₁ × T₂/T₁ × V₂
P₂ = 73 kPa × 350 mL × 333 K/308 K × 425 mL
P₂ = 65 kPa
How many grams of heptane are needed to completely react with 106 g of O2?
Answers
Answer:
21.9g
Explanation:
The balanced reaction for the combustion of heptane is;
C7H16 + 11 O2 ------> 7 CO2 + 8 H2O
from the balanced reaction,
1 mole of heptane = 11 moles of O2
converting to mass
100g of Heptane = 484g of O2
xg of Heptane = 106g of O2
x = 106×100/484
x = 21.9g
Therefore, 21.9g of heptane is needed to completely react with 106 g of O2
please don't forget to mark brainliest if helpful
Which event is fast change that occurs as a result of plate tectonics?
A. Hurricane
B. Volcanic eruption
C. Formation of an ocean basin
D. Convection current
Answers
Answer: B. Volcanic eruption
Explanation:
A volcano is firmed when molten rocks is formed to the surface of the Earth. Volcanoes release molten rocks, ash, and gases to the Earth's surface.
Volcanoes are agents of change as the eruptions lead to the formation of new landforms and also destroy several things that they come in contact with.
Volcanic eruptions also occurs due to plate tectonics. Other events that happen due to plate tectonics also include earthquakes, and tsunamis.
Answer:B
Explanation:
substance in which two or more atoms are bonded together.
Answers
molecule(s)
two or more atoms touching means they are connected as molecules which also make up compounds
How many atoms is 59.6 Liters of He gas at STP?
Answers
59.6L/22.4L 1 molHe 1 mol He x 6.02x10^23 atoms He
Answer 1.60x10^24 atoms He
Sonya is studying a nonmetal element. She learns that the element is like other elements in its group because it can bond to form a salt or an acid. She also learns that the element is the most reactive element in its group. Which element is Sonya most likely studying?
-----
sulfur (S)
neon (Ne)
fluorine (F)
iodine (I)
Answers
Answer:
I don't know much about chemistry but fluorine us the most reactive halogen and element
Describe how simple distillation is used to separate water from an aqueous solution of sodium
sulfate.
Answers
Answer:
hbyiy
Explanation:
formal charge of hcooh
Answers
Answer:
What is the question?
What are two ways to make a sugar cube dissolves faster in water
A. Chill the water after adding the sugar cube
B. Add Several sugar cubed instead of water
C. Warm the water before adding the sugar cube
D. Break The sugar cube in a smaller pieces
Answers
Answer:
c.warm water before adding the sugar cube
Answer:
C.Warm the warm the water before adding the sugar cube D. Break the sugar cube into smaller pieces
Explanation:
Heating. Speeds up particles causing them to bump and break, further exposing them to the solvent.
Increasing surface area. By crushing or breaking the solid, you are exposing it to more contact with the solute.
10 The rate of the reaction between hemoglobin (Hb)
and carbon monoxide (CO) was studied at 20°C.
The following data were collected with all
concentration units in u mol/L. (A hemoglobin
concentration of 2.21 u mol/L is equal to
2.21 x 10 mol/L.)
[Hblo [CO),
Initial Rate
(u mol/L) (u mol/L) (u mol/Ls)
2.21
1.00
0.619
4.42
1.00
1.24
4.42
3.00
3.71
(a) Determine the orders of this reaction with
respect to Hb and CO.
(b) Determine the rate law.
(c) Calculate the value of the rate constant.
(d) What would be the initial rate for an
experiment with [Hb]o =3.36 u mol/L
[CO] =2.40 4 mol/L?
Answers
Answer:cookie
Explanation:
What is some of the evidence used by Galileo to support Copernicus’s model and disprove Aristotle and Ptolemy’s?
Each planet spins in an epicycle.
Planets appear to move backward.
Jupiter has moons orbiting it.
The religious and cultural beliefs supported this model.
Answers
Answer:
Hey sorry if i took too long but I believe it is A
Explanation: sorry if im wrong
hope this helps
Answer:
It is A
UW
Explanation:
A beverage manufacturer wants to increase The solunility of carbon dioxide in its carbonated drinks as beverages produced which action will increase the solubility of CO2 gas the most
A. Decreasing the pressure on it
B. Increasing stirring
C. Decreasing its temperature
D. Increasing its temperature
Answers
Answer: C
Explanation:
What happens in a chemical reaction?
a. Atoms are destroyed.
b. Atoms are created.
c. Molecules are created.
d. Atoms are rearranged.
Please select the best answer from the choices provided
A
B
С
D
Pls help please :((
Answers
Answer:
During the reaction, chemical bonds break in the reactants and new chemical bonds form in the products.
Answer:
d. Atoms are rearranged.
Explanation:
How many grams of Fe can be produced when 6.50 g of Fe2O3 reacts?
Answers
Answer:
Mass of Fe produced = 4.468 g
Explanation:
Given data:
Mass of Fe produced = ?
Mass of Fe₂O₃ react = 6.50 g
Solution:
Chemical equation:
2Fe₂O₃ → 4Fe + 3O₂
Number of moles of Fe₂O₃ ;
Number of moles = mass/molar mass
Number of moles = 6.50 g/159.69 g/mol
Number of moles = 0.04 mol
Now we will compare the moles of iron and ironoxide.
Fe₂O₃ : Fe
2 : 4
0.04 : 4/2×0.04 = 0.08 mol
Mass of iron produced:
Mass = number of moles × molar mass
Mass = 0.08 mol × 55.85 g/mol
Mass = 4.468 g
Is this right I will give brainiest
Answers
Answer:
Yes, you are correct.
Explanation:
I used Google.
What are two ways to make a sugar cube dissolves faster in water
Answers
Answer:
put it in a warm water or you put it in an ordinary water
what can chemically be broken down into a simpler substance
Answers
Answer: ea sports
Explanation:
A compound is a substance that contains two or more elements chemically combined in a fixed proportion. However, it is not an element because it can be broken down into simpler substances – carbon and hydrogen. ... Recall that the components of a mixture can be separated from one another by physical means.
Which of the following can be changed in a chemical reaction?
O Type of atoms
O Type of molecules
O Coefficients
O Subscripts
whoever answers will get the branliest !
Answers
Answer:
Type of molecules
Explanation:
got it right
What type of compound is disulfur dichloride?
a. organic compound
b. acid (ionic compound)
c. covalent compound
d. ionic compound
Answers
Answer:
Covalent compound
Explanation:
It is formed by covalent bonds, in which the atoms share a pair of valence electrons
A mystery element "X” has two stable isotopes X-50 which occurs 40% of the time
and X-60 which occurs 60% of the time. What is the average mass of element "X"?
A-50 amu
B-54 amu
C-56 amu
D-60 amu
Answers
Answer:
probaly C
Explanation:
I'm not sure on this one...
