Answer:
See explanation
Explanation:
Double displacement reaction is a reaction in which the cations in the reactants side exchange partners on the product side
The molecular equation here is;
CaI2(aq) + K2C2O4(aq) --------->CaC2O4(s) + 2KI(aq)
General ionic equation;
Ca^2+(aq) + 2I^-(aq) + 2K^+(aq) + C2O4^2-(aq) -------> CaC2O4(s) + 2I^-(aq) +
2K^+(aq)
Net ionic equation;
Ca^2+(aq) + C2O4^2-(aq) ------> CaC2O4(s)
I need help fast!! Djdndndndndndnnds
Answer:
1st one: carbon dioxide
2nd: Glucose
3rd: Oxygen
4th: Energy
Sorry if this is wrong because I don't see the options!
Hope this helps!
What environmental condition is likely to increase the frequency of brightly colored, highly scented flowers in a plant species over many generations?
o Increased shade
o Intense rainfall
o Higher levels of soil nutrients
o Insect pollinators available
Answer:
the answer is the 3rd one, though I'm not 100% sure on it, sorry
what reagents can be used to test for unsaturation of hydrocarbons?
Answer:
Bromine test is used to test the unsaturation of hydrocarbons.
Explanation:
FeO + C -----> Fe + CO2 balanced help
Answer:
2FeO + C ---> 2Fe +CO2
Explanation:
How do temperature, humidity, and pressure vary within an air mass?
A.Temperature and humidity vary, but pressure does not.
B.Humidity makes the pressure in an air mass increase.
C.Temperature, humidity, and pressure are basically the same all through an air mass.
D.Temperature at the border of an air mass is always higher than in the middle.
Make sure to give me an explanation so I don't get dirt about me cheating. I just really need to know this simple question. Please, be so helpful.
Answer:
C
Explanation:
Temperature, humidity, and pressure are all the same through an air mass.
Help me on this question, will give brainliest.
What happens when a base dissolves?
O A. It increases the concentration of OH in solution.
O B. It increases the concentration of Hi in solution.
O C. It is no longer dangerous.
O D. It adds oxygen to the solution.
Answer:
A. It increases the concentration of OH in solution.
Explanation:
Answer:
B. It increases the concentration of Hi in solution.
Explanation:
A.p.e.x
All organisms have the same number of cells
A. true
B. false
3. How can a community help implement Ecological Solid Waste Management.
4. As a student, how can this program help you in your school?
Answer:
It help cause we compost food scraps and other organic wastes. We also reuse and recycle materials to organize for government and industry to develop community recycling materials.
It depend on your opinion as a student.
Explanation:
Hope it helps
Organizing a community to collect waste and implementing ecological solid waste management greatly helps to reduce pollution and landfilling also creates ideas for recycling.
What is solid waste management ?In order to build and sustain an efficient waste management programme, community-based waste management are partnerships between non-governmental organizations, governmental organizations, and the affected communities.
Community based waste management helps to direct participation and accountability of community members monitoring the collection and reduction of trash waste separation at the homestead level
Similarly they are using priceless and reusable goods on-site , recycling organic trash as well as public collection service collects and transports garbage to a treatment facility.
Find more on waste management:
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The light energy captured during photosynthesis is stored as
water.
sugar.
carbon dioxide.
electrons.
Answer:
Sugar
Explanation:
This is because water and carbon dioxide are required during photosynthesis. Oxygen along with glucose, that is a type of sugar is produced. The oxygen is diffused out in to the air, while the sugars are stored in the leaf thus light energy captured during photosynthesis is stored as 'sugar'
Anions are formed when *
O atoms lose one electron
atoms gain one electron
atoms lose their valence shell electrons
atoms add electrons to fill their valence shell
#12. How are the volume and pressure of a gas at constant
temperature related?
Answer:
The volume of a given amount of gas is inversely proportional to its pressure when temperature is held constant (Boyle's law). Under the same conditions of temperature and pressure, equal volumes of all gases contain the same number of molecules (Avogadro's law).
Explanation:
Hope it helped :)
What is the molarity of a solution containing 72.9 grams of HCl in enough water to make
500 mL of solution?
Answer:
3.9mole/liter
Explanation:
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A tow truck does 10,000 J of work in 5 seconds. Calculate the power.
Answer:
power is work/time so 10,000j/5s=2000J/s
This rock is made up of the mineral calcite and it formed from the remains of organisms that lived in water. What type of rock is it?
Answer:
sedimentary rock
Explanation:
Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. And as you said "it formed from the remains of organisms that lived in water". And that makes it a sedimentary rock.
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Explain why this compound is not a hydrocarbon. *
(2 points)
Why doesn't the air pressure crush this tiny
flower?
Answer:
because air pressure crushes masses and or grams that have a stronger gravitaional
pull
Which of the following is an example of a Lewis acid?
O A. NaOH
B. CaCO3
O C. BF3
D. NH3
Answer:
C. BF3
Explanation:
The boron in BF3 is electron poor and has an empty orbital, so it can accept a pair of electrons, making it a Lewis acid.
Among the following, an example of a Lewis acid is option C. BF₃ Hence the correct option is (C)
What is Lewis Acid ?A Lewis acid is a chemical species that contains an empty orbital which is capable of accepting an electron pair from a Lewis base to form a Lewis adduct.
The boron in BF₃ is electron poor and has an empty orbital, so it can accept a pair of electrons, making it a Lewis acid.
Boron trifluoride BF₃ behaves as Lewis acid because it is an electron-deficient species and it can accept electron pair.
Here we see Boron configuration is 1s²2s²2p¹ and vacant p-orbital exist, which indicates that mean BF₃ has the tendency to accept lone pair, hence BF₃ is lewis acid.
Therefore, Among the following, an example of a Lewis acid is option C. BF₃ Hence the correct option is (C)
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If the Sun continues its evolution according to theory, what will be its last stage?
A.As a black hole
B. As a white dwarf
C. As a red giant
D. As a planetary nebula
Pls help
A cat runs 27 meters in 2 seconds. What is the velocity of the cat? (answer with up to 2 decimal places)
Answer:
13.5 meters/seconds
Explanation:
v = displacement/time
v= 27 meters/2 seconds
v= 13.5 m/s
The last electron in an atom of oxygen is added to a ___ orbital.
a. 2p
b. 1p
c. 3p
d. 2s
Answer:
A
Explanation:
Where does heat come from
Answer:
All matter contains heat energy. Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects is called heat.
Explanation:
Can anybody help please
Answer:
Three hydrogen atoms
when do you consider that a typhoon will enter or effect the country
Answer:
sorry I don't understand this subject sorry
Explanation:
What is the name given to the process shown in the diagram
How many molecules are present in 0.336 mol of acetylene (C2H2)?
Answer:
The answer is 26.03728. We assume you are converting between grams C2H2 and mole. You can view more details on each measurement unit: molecular weight of C2H2 or mol This compound is also known as Acetylene. The SI base unit for amount of substance is the mole.
Explanation:
The solution is 26.03728. We assume you are converting between grams C2H2 and mole. You could view more information on each size unit: molecular weight of C2H2 or mol This compound is also called Acetylene. The SI base unit for the quantity of the substance is the mole.
Is C2H2 a molecule?The C2H2 molecule is product of sigma-bonds and pi-bonds, with a bond attitude of one hundred eighty ranges. This linear molecular geometry is similar to that of CO2 (Carbon dioxide), which is likewise a non-polar compound.
C2H2 has a linear molecular geometry because all the atoms are symmetrically aligned inside the same aircraft. Both Carbon atoms are inside the centre of the C2H2 Lewis structure due to the fact they may be much less electronegative than Hydrogen atoms.
The chemical formulation for acetylene is C2H2 and the chemical composition for carbon monoxide is CO. There are 2 carbon atoms in every acetylene molecule and 1 carbon atom in every carbon monoxide molecule. In each mol of any chemical substance, there are 6.022*10^23 molecules.
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Describe at least two different objects that you think are magnetic. Why do you think these objects are magnetic?
(That was a fake question). Real question is do you master,bate
Answer: yes but usally to Doujinshi
Explanation:cause it’s better then Real stuff I guess
Answer:
boy noooooo
Explanation:
What will most likely cause a sudden wind to start blowing?
Answer:
wind is just high and low pressure of air, when a high pressure comes and crashes into a low pressure air pocket than it can form a wind storm.
Explanation:
The Uneven heating of the Earth's surface. Earth's rotation and unequal heating of the Earth's surface. air pressure towards regions of lower air pressure. ... air moving from areas of high pressure to areas of low pressure.
This is what will most likely cause a sudden wind to start blowing.
Astatine, At, is below iodine in Group 17 of the Periodic Table. Which statement is most likely to be correct?
A AgAt(s) reacts with an excess of dilute aqueous ammonia to form a solution of a soluble complex.
B Astatine and KCl(aq) react to from KAt(aq) and chlorine.
C KAt(aq) and dilute sulfuric acid react to form HAt(g).
D NaAt(s) and concentrated sulfuric acid react to form astatine.
What is the percent of copper in CuS?
Answer:
Element Symbol Mass Percent
Cuprum Cu 66.464%
Sulfur S 33.537%
Explanation:
I got this out of my module, sorry if it's wrong but i am pretty sure 97% this is correct!