Chemistry High School


You are decomposing 2.00 mol of baking soda according to the following equation:
2 NaHCO3 -> Na2CO3 + CO2 + H2O
If you only collected 0.750 mol of Na2CO3 after the reaction finished, what was the
percent yield?
75.0%
62.5%
37.5%
25.0%
Question 6 (1 point)
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You Are Decomposing 2.00 Mol Of Baking Soda According To The Following Equation:2 NaHCO3 -> Na2CO3

Answers

Answer 1
I’m not sure but I’m thinking 75.0% btw if you want an exact answer you need to offer more than 5 points

Related Questions

hi how do u determine the mass of NaCl [i'm not talking about the molar mass and also pls don't send links to this question]

Answers

The atomic mass you could find on the periodic table

The half-life of 3H (H-3) is 12 years. About how long does it take for 127/128 of a sample of that radionuclide to decay? (Hint: this means only 1/128 are left)
A: 7 years
B:11.9 years
C:84 years
D:12.1 years

Answers

Answer:

i do believe its 7

Explanation:

Answer:84

Explanation:

is an example of a solution that contains a dissolved substance

Answers

Answer:

An aqueous solution is water that contains one or more dissolved substances. The dissolved substances in an aqueous solution may be solids, gases, or other liquids.

is Tungsten carbide an elementary substance
or compound?

Answers

Answer:

Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms.

Answer:compound

Explanation:

The greater the difference in EN (electronegativity) between the intramolecular bonding of two atoms, the bond will experience more ionic behavior. A. True b. False​

Answers

true, electronegativity >1.7 is ionic

Write a nuclear equation for each description below.

Stronitum-84 combines with an alpha particle, creating sodium-25 and a daughter nucleus. 4 pts

Answers

Answer:

Sr-84 + He-2  -> Na-25 + Pm-61

Explanation:

calcium phosphate consists of two ions chemically bonded together. What are charges of each ion?

Answers

Answer: Ca^2+ and P^3-

Explanation:

type of ions do acids give off? hydroniumm hydrogen heliumhy dronium and hydrogen

Answers

Answer:

Substances that give H + 1 ion when dissolved in water are called acids

Explanation:

Can you build a fire on the moon? Why or why not?

Answers

Answer:

No.

Explanation:

We can't build a fire on the moon, because moon's atmosphere lacks oxygen.

[tex] \huge \pink{answer}[/tex]

No lightning of a fire on the surface of the moon is impossible..

[tex] \huge \green {reasons - }[/tex]

surface of the moon lacks oxygen which is important for the formation of fire.Surface of the moon doesn't have wind which disables the fire to burn rapidly.

How many atoms are needed to react with 50 grams of O2 gas

Answers

Answer:

3 moles

Explanation:

3 moles atoms are needed to react with 50 grams of O2 gas.

Heyy,
I hope that you're doing well today! :)

Can you help me please with my chemistry homework?
How are these two formulas called?

Thank youu​

Answers

These are structural formulas of constitutional isomers of hexene, an alkene.

Both are acyclic, six-carbon chains, and they differ only in the position of the double bond. As constitutional isomers, both structures have the same molecular formula.

The first structure is of hex-1-ene (or 1-hexene).

The second structure is of (3E)-hex-3-ene [or (3E)-3-hexene].

Both structures have the molecular formula C₆H₁₂.

I hope I answered your question. Please feel free to let me know otherwise.

How do you determine the Ka of an unknown acid using a titration curve?

Answers

The titration curve of an unknown weak acid with a strong base will be measured using a pH meter. From the titration curve, the equivalence point and the pKa of the acid will be found. The melting point of the solid acid will be found using a Meltemp.

What is the net ionic equation for the following reaction?
Rb2CrO4(aq) + 2AgClO(aq) --> 2RbClO(aq) + Ag2CrO4(s)

Group of answer choices

Rb+(aq) + ClO-(aq) --> RbClO (s)

2Rb+(aq) + CrO42+(aq) --> Rb2CrO4 (s)

Ag+(aq) + ClO-(aq) --> AgClO (s)

2Ag+(aq) + CrO42+(aq) --> Ag2CrO4 (s)

Answers

Ag + (aq) + CI- (aq)

If the sun output of solar radiation increased by 20% how would this impact the temperature of earth's mantle

Answers

Answer:

The temperature will not be affected directly

Explanation:

The solar radiation has a direct effect on the outer surface and inner part of the earth but  an increase by 20% of the solar radiation will not cause the temperature of the Earth's mantle to increase because the factors that heat up the Earth's mantle are : Friction between core materials that sink into the center of the planet and Heat from decay of radioactive materials

transmutation occurs during which type of radioactive decay

Answers

Explanation:

Transmutation, conversion of one chemical element into another. A transmutation entails a change in the structure of atomic nuclei and hence may be induced by a nuclear reaction (q.v.), such as neutron capture, or occur spontaneously by radioactive decay, such as alpha decay and beta decay (qq. v.).


A transmutation entails a change in the structure of atomic nuclei and hence may be induced by a nuclear reaction (q.v.), such as neutron capture, or occur spontaneously by radioactive decay, such as alpha decay and beta decay

A sample of gas has a volume of 12.0 L and a pressure of 2.00 ATM. If the pressure of gas is increased to6.00 ATM, what is the new volume of the gas

Answers

Answer:

4L

Explanation:

I NEED HELP ! ANYTHING WILL HELP!
Why are there few fossils
of sea slugs?

Why are you more likely to find a fossilized trilobite than a fossilized sea urchin?

Answers

Trilobites are more common than Sea urchins

Perform the following operation
and express the answer in
scientific notation.
3.60x10-12 + 3.60x10-11

Answers

Answer:

3.60X10^-12 is equal to 0.360X10^-11 (move decimal one place left)

 

Now you can add 3.60X10^-11 and 0.360X10^-11:

 

3.60X10^-11 + 0.360X10^-11 = 3.96X10^-11

 

You're really just adding 3.60 to 0.36 since the "X10^-11" is the same for both.

36-12+36-11
24+25
= 49

Calculate the calories of heat required to melt 35.0 g of ice.

Answers

Answer:

35.0g of ice at 0 degrees

Explanation:

i. Write the dissolution reaction of BaF2, including all states. (0.5 points)
BaF2←>Ba2+(aq)+2F-(aq)

ii. Write the expression for Ksp for BaF2. (0.5 points)

iii. Write the Ksp expression as an algebraic equation, using the variable x to represent concentrations. (1 point)

iv. Find the solubility of BaF2 by solving the equation you wrote in part iii. (0.5 points)

Answers

Answer:

See Explanation

Explanation:

i) The equation of the dissolution of BF2 is;

BaF2(s)⇄Ba2+(aq)+2F-(aq)

ii) Ksp =[Ba2+]  [2F-]^2

iii) Let the concentration/solubility of [Ba2+] and [2F-] be x

Ksp = [x] [2x]^2

Ksp = 4x^3

iv) x =∛Ksp/4

The urinary bladder is a muscular organ of the excretory system that collects urine excreted by the kidney. How does the nervous system help the urinary system in excretion?

Answers

Explanation:

it helps in when the kidney has used the needful nutrients been taken then the unwanted waste product it sends it to the nervous system then the nervous system passes the waste product to the bladder in form of urine

how many atoms are in 1.6g C? Answer in units of atoms.

(no answer choices were given)

Answers

Answer:

6.022  ×10(index 23) / 7.5 = 0.8293 ×10(index 23)

Explanation:

molar mass of C =  12gmol

therefore in 12g of C there is one mole or an amount of 6.022 ×10(index 23)

∴12g/6.02210(index 23) ×1.6g

Please help!!
The diagram shows the electron configuration of an atom of an element for the electrons in the s and p orbitals.
What is the group number of the element in the periodic table?

A) 1
B) 2
C) 13
D) 15

Answers

Answer:

15

Explanation:

because since the outer shell has 5 electron then add 5 and 10 to get 15

The ______ of the particles themselves is much less than the space in between those particles

Answers

plz write question properly. Its not understandable.

What is the mass in grams of 4.8 moles of Calcium Hydroxide?

Answers

Answer:

355.2 grams

Explanation:

m = M×n= (40 + 2(16+1))×4.8= 355.2 (g)

The answer is 74.093 g/mol

Science, please help and thank you!!

Answers

Swings hope this helps

Because the triple beam balance is zeroed before it is put into use, it measures
A.
volume
B.
weight
C.
the effects of gravity
D.
mass

Answers

Answer b weight....
Hope this helps

HELPP asap I’ll mark you as brainlister!!!!!!

Answers

3.50 atm

Total pressure is just the sum of partial pressures. If you have 2.07 atm of pressure in the cylinder and then add 1.43 atm, you just add the two pressure together to get the total.

The image shows the mouth of a Tasmanian devil. The Tasmanian devil has four distinctive long teeth near the front of its mouth. Based on their shape, what are these teeth mostly like used for?
A.
holding and tearing meat
B.
crunching and crushing bone
C.
grinding up plant material
D.
rooting in soil for worms

Answers

Answer:

same as the answer of her

Explanation:

hshsjsjsjsjskwsksjsjjsjwwjsnsjsjwjkwis

Calculate the Keq of the reaction CH4 + O2 ⇌ CO2 + 2H2O, given the following concentrations at equilibrium:
[CH4] = 0.37M [O2] = 0.25M [CO2] = 0.86M [H2O] = 0.44M

Answers

Answer is B but don’t take my word
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