Answer:
1.75 moles of copper are needed to react with 3.50 moles of AgNO₃.
Explanation:
Given data:
Moles of copper needed = ?
Moles of AgNO₃ = 3.50 mol
Solution:
Chemical equation:
Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag
Now we will compare the moles of copper and AgNO₃.
AgNO₃ : Cu
2 : 1
3.50 : 1/2×3.50 = 1.75 mol
So 1.75 moles of copper are needed to react with 3.50 moles of AgNO₃.
To find the number of moles of Cu needed to react with 3.50 moles of AgNO3, we can use a proportion from the balanced equation. The number of moles of Cu needed is 1.75 moles.
The balanced equation shows that 1 mole of Cu reacts with 2 moles of AgNO3. Therefore, we can set up a proportion to find the number of moles of Cu needed to react with 3.50 moles of AgNO3 as follows:
Moles of Cu / 1 = 3.50 moles of AgNO3 / 2
By cross-multiplying and solving for the unknown variable, we find that the number of moles of Cu needed is 1.75 moles.
#SPJ3
Answer:
According to Brittanica, "Internal energy [is] the property or state function that defines the energy of a substance in the absence of effects due to capillarity and external electric, magnetic, and other fields."
B. Surface tension
C. Adhesion
D. Capillary action
9.75 x 10^5
A number in scientific notation has the form a x 10^b where
• a is the coefficient
• b is the exponent
Here are the steps to convert a number greater than 1 to scientific notation.
a) Find the coefficient
Put the decimal point after the first digit and drop the trailing zeroes
9.75 000
The coefficient is 9.75.
b) Find the exponent
Count the number of digits after the first digit.
In 975 000 there are five digits after the 9. Therefore, the exponent is 5.
c) Write the number
We write 975 000 as 9.75 x 10^5.
Answer:
Yes, you are correct
Explanation:
Nice job :)