I think it’s 45g because
the maximum amount of sugar in a 100ml water is 180 and 25% of 180 is 45
Answer: Ba, Ca, Be, F
Explanation: Size of atom increases when moving down on same group
and decreases when moving on same period from left to right
Answer:
A. A physical change took place during this experiment
Explanation:
A physical change is one of the changes that occurs in a reaction. It is a kind of change characterized by no change to the chemical composition of the substances involved. It involves reactions such as melting, change of state, freezing, boiling etc.
According to this question, Lydia added 50 grams of sugar to 200 milliliters of water, then, stirred the mixture, until the sugar eventually dissolved into the water and couldn’t be seen. This change involved no change in color, odor, or temperature. Hence, Lydia's experiment represents a PHYSICAL CHANGE because only DISSOLUTION occured.
In an experiment, Lydia added 50 grams of sugar to 200 milliliters of water. She stirred the mixture, and the sugar eventually dissolved into the water and couldn’t be seen. The volume of the solution increased, but there was no noticeable change in color, odor, or temperature. Which statement best describes what happened in Lydia’s experiment? A. A physical change took place during this experiment. B. A chemical change took place during this experiment. C. A compound was formed during this experiment. D. A heterogeneous mixture was
The larger and heavier the box, the more force you must use when pushing.
Answer:
14 mol
Explanation:
CH4(g) + 2O2(g) -------» CO2(g) + 2H2O(g)
from reaction 1 mol 2 mol
given 7 mol x mol
x = (7*2)/1 = 14 mol
