Answer:
Option D would be correct: The mass of the products is equal to the mass of the reactants
Explanation:
For example, in chemical reactions, <u>the mass of the chemical components before the reaction is equal to the mass of the components after the reaction</u>.
hope this helps :)
Answer:
True......................had to do this because we need atleast 20 letters
Answer:
Physical properties of matter are properties that can be measured or observed without matter changing to an entirely different substance.
Additional examples of physical properties include:
odor
boiling point
ability to conduct heat
ability to conduct electricity
ability to dissolve in other substances
<u>Answer:</u>
"Precision agriculture" is a farm management methodology that uses information and technology to manage variability in a field with the goal of generating optimum profits.
<u>Explanation:</u>
Precision farming (PA), also referred to as "prescription farming" or "variable rate agriculture," is a collection of methods that can be applied in many agricultural science areas.Spatial planning may result in the more efficient use of resources that support the firm's productivity and the management of valuable resources.
PA can be described as a current management technique for the regulation of agricultural practices based on georeferenced data. It is focused on describing the georeferenced details by applying surveillance procedures and incorporating soil, plant, and environment morphology.
Answer:
Using my (not very precise) periodic table, I get the mass of Ag as 107.87
Explanation:
This must be a combination of these two isotopes. So the % of the other isotope must be 48.16%.
To work with these percentages in an equation I'll use them as decimals.
So now I can start putting them into an equation:
107.87 = (
106.905
⋅
0.5184
) + (
x
⋅
0.4816
)
Because both of the isotope masses, multiplied by their percentage, would give us the overall average mass.
107.87 = 55.419552 ⋅ ( x ⋅ 0.4816
)
Worked out the brackets that we can work out, and then rearrange to give:
107.87 − 55.419552 = ( x ⋅ 0.4816 )
Again rearrange:
52.450448 = ( x ⋅ 0.4816 )
And final rearranging:
x = 52.450448 - 0.4816
x
=
108.909
(using same sig figs as given in question)
You probably want to work through that again using your periodic table value for Ag.