How many kilojoules are equivalent to 10 joules?
Answers
?? --------------- 10 J
10 x 1 / 1000 => 0.01 Kj
Related Questions
This is the equation for the combustion of propane.C3H8 + 5O2 → 3CO2 + 4H2O + heatWhich are the reactants and the products in this reaction?A.The reactants are C3H8 (propane) and H2O (water). The products are O2 (oxygen) and CO2 (carbon dioxide).B.The reactants are C3H8 (propane) and O2 ( oxygen). The products are CO2 (carbon dioxide) and H2O (water).C.The reactants are CO2 (carbon dioxide) and H2O (water). The products are C3H8 (propane) and O2 ( oxygen).D.The reactants are O2 (oxygen) and CO2 (carbon dioxide). The products are C3H8 (propane) and H2O (water).
The nuclear symbol for uranium-235 should be written asO U-235.22592 U233143UOU
What volume will 20.0g of Argon occupy at STP?
After being thoroughly stirred at 10.°C, which mixture is heterogenous?(1) 25.0 g of KCl and 100. g of H2O(2) 25.0 g of KNO3 and 100. g of H2O(3) 25.0 g of NaCl and 100. g of H2O(4) 25.0 g of NaNO3 and 100. g of H2O
Answers
Answer: 4.12
Explanation:
we know that the given mol is 8.23 mol and they are 2NaI and I2 so we will write the equation like this.
8.23mol NaI x 1mol of I2 ÷ 2molNaI = 4.115≅ 4.12 mol of I2
we placed NaI at the bottom to cancel out with the 8.23 mol of NaI
Answers
the answer is lavoiser
Final answer:
Antoine-Laurent de Lavoisier, a French chemist, organized elements into four groups based on their properties: gases, nonmetals, metals, and earths. This was a monumental contribution to the field of Chemistry.
Explanation:
The person you're referring to who organized elements into four groups based on their properties is the French chemist Antoine-Laurent de Lavoisier. Lavoisier is commonly known as the 'Father of Modern Chemistry' and his work contributed significantly to the development of this field. In the late 18th century, he sorted 33 elements into four categories: gases, nonmetals, metals, and earths, by recognizing their similar properties. This was a significant step at the time, further paving the way for the modern periodic table.
Learn more about Organization of Elements here:
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Answers
Ans: Volume of stock H2SO4 required = 6.94 ml
Given:
Concentration of stock H2SO4 solution M1 = 18.0 M
Concentration of the final H2SO4 solution needed M2 = 2.50 M
Final volume of H2SO4 needed, V2 = 50.0 ml
To determine:
Volume of stock needed, V1
Explanation:
Use the dilution relation:
Hello!
In a school’s laboratory, students require 50.0 mL of 2.50 M H2SO4 for an experiment, but the only available stock solution of the acid has a concentration of 18.0 M. What volume of the stock solution would they use to make the required solution?
We have the following data:
M1 (initial molarity) = 2.50 M (or mol/L)
V1 (initial volume) = 50.0 mL → 0.05 L
M2 (final molarity) = 18.0 M (or mol/L)
V2 (final volume) = ? (in mL)
Let's use the formula of dilution and molarity, so we have:
Answer:
The volume is approximately 6.94 mL
_______________________________
Answers
Understanding the model of the atom helps predict how elements will react with each other.
For example, the ball-and-stick model is a molecular model of a chemical substance which is to display both the three-dimensional position of the atoms and the bonds between them.
The atoms are represented by spheres, connected by rods which represent the bonds.
Every ball represent one atom in one molecule and they have different colors for different atoms (for example, carbon is black, hydrogen is white, nitrogen is blue).
There also other models: skeletal models, polyhedral models, composite models, computer-based models.
It is a strong base and a very poor conductor of electric current.
B.
It is a strong acid and a very good conductor of electric current.
C.
It is a weak base and a very good conductor of electric current.
D.
It is a weak acid and a poor conductor of electric current.
Answers
Substance A is mixed with water and donates 0.4% of its H⁺ ions, therefore given substance is a weak acid & show poor conduction of electric current.
What are acids?
According to the Arrhenius theory of acids and bases, acids are those species which gives H⁺ ion to the solution.
In the question it is given that, substance A is mixed with water and it donates H⁺ ion, from this it is clear that given substance is acid. It is also mention that it donates only 0.4% of its H⁺ ion means partial dissociation is observed, so we conclude that this acid is weak in nature. And due to weak dissociation and less number of available H⁺ ion it did not conduct electricity effectively.
Hence, option (D) is correct i.e. it is weak acid and a poor conductor of electric current.
To know more about acids, visit the below link:
Answer:
D
Explanation:
Question:
What is the balanced chemical equation for the reaction used to calculate ΔH∘f of BaCO3(s)?If fractional coefficients are required, enter them as a fraction (i.e. 1/3). Indicate the physical states using the abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Use (aq) for aqueous solution.
EXPRESS ANSWER AS A CHEMICAL EQUATION. Please explain for me too!!!
Answers
Burn hydrogen to obtain water:
Combine them:
Now react it with Ba:
To sum up, the reaction is
Answer:
You will get at first carbon dioxide by burning C:
C+O_2=CO_2
Burn hydrogen to obtain water:
H_2+\frac{1}{2}O_2=H_2O
Combine them:
CO_2+H_2O=H_2CO_3
Now react it with Ba:
Ba+H_2CO_3=BaCO_3+H_2
To sum up, the reaction is Ba+C+\frac{3}{2}O_2=BaCO_3, using hydrogen as a catalyst.
Explanation: