Balance the given equation
2Cu + _____ = CuO + _____
Answer:
2Cu+2H20=2CuO+2H2
Which of the following steps correctly converts 6 grams of fluorine to an equivalent number of moles of fluorine?
A. Divide 6 by the atomic mass of fluorine.
B. Divide the atomic mass of fluorine by 6.
C. Subtract 6 from the atomic mass of fluorine.
D. Multiply the atomic mass of fluorine by 6.
Answer:
A
Explanation:
mole=mass of the element ÷ atomic mass of the element.
mole=6÷atomic mass of flourine.
The step at A correctly converts 6 grams of fluorine to an equivalent number of moles of fluorine. That is "Divide 6 by the atomic mass of fluorine".
What is one mole of a substance?A mole is defined as the mass of the substance which consists of an equal quantity of basic units.One mole of any substance is equal to the value of 6.023 x [tex]10^2^3[/tex] (Avagadro number). It can be used to measure the products obtained from the chemical reaction. The unit is denoted by mol.The formula for the number of moles formula is expressed as the number of moles of the substance = mass of the substance/ mass of one mole of the substanceHow to calculate the number of moles of fluorine equivalent to 6 grams of fluorine?Given that,
The mass of fluorine = 6 grams
The atomic mass of one mole of fluorine = 18.99
So, the number of moles of 6 grams of fluorine= [tex]\frac{6}{18.99}[/tex]
Therefore, the step is given in option A: "Divide 6 by the atomic mass of fluorine" is the correct step that converts the 6 grams of fluorine to an equivalent number of moles of fluorine.
Learn more about the number of moles of a substance here:
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Make a generalization about the importance of tools to science.
Cells are mostly made of
Answer:
organic molecules: nucleic acids, proteins, carbohydrates, and lipids
Answer:
organelles
Explanation:
idrk if it right but it reminded me of a song my teacher would play
"cells, cells their made of organelles"
Answer this question and you’ll get 20 points Explain how energy is transfers using the major forms of energy in a circuit describe the energy source and form as energy is transformed throughout the circuit. Give at least 3 forms of energy. Including 2 transformations that occur. Make sure to provide the evidence that would indicate how we would know that the energy is complete within the circuit
Answer:
When the fuel is burnt, the hot gas rushes out of the rocket due to the great heat and pressure produced by the release of chemical energy in burning. Energy transfer is the movement of energy from one location to another. Energy transformation is when energy changes from one type to another.
Explanation:
Using the line graph below, find the independent and dependent variables.
Answer:
The independent variable in on the x-axis, and the dependent variable is on the y-axis.
Explanation:
The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line). The x and y axes cross at a point referred to as the origin, where the coordinates are (0,0).If you are confused, please check out this website talking more in-depth about graphing!
https://www2.nau.edu/lrm22/lessons/graph_tips/graph_tips.html#:~:text=The%20independent%20variable%20belongs%20on,are%20(0%2C0).