Answer:
Weight is mass times gravity
Explanation:
The mass is the weight gravity is the force of attraction and weight is the power pulled by the gravity or smthn like that
Answer:
I think it's Csl
I don't really know
but follow me and heart this
1- He reported that seven pounds of oxygen reacted with one pound of hydrogen to form water, but accurate modern experiments give eight pounds to one.
2- by determining the relative mass we will be able to determine for example that one element has twice the mass of a second element.
3- oxygen atoms were found to have a mass 16 times greater than the mass of hydrogen
Answer:
10.11 mL
Explanation:
Given that :
Total volume of decolorizer = 500 mL
A common recipe is equal parts 95% ethanol and acetone.
So;
The volume of 95% ethanol in the decolorizer = 500mL/2 = 250 mL
Let represent V(ml) for the 99% of ethanol needed to make 95% of the 250 mL of ethanol;
Therefore:
V(ml) × 0.99 = 250 × 0.95
V(ml) × 0.99 = 237.5
V(ml) = 237.5/0.99
V(ml) = 239.89 mL
Hence; the amount of water to be added to 95% of ethanol = ( 250 - 239.89 )mL = 10.11 mL
Definitely B. Chemicals are used to help clean difficulties items/objects
