In this limiting reactant experiment, the accuracy of results depends on how well the students perform the various laboratory techniques.

from the list of steps and lab techniques below,

a- vacuum filtration
b - weighing aspirin crystals
c - measuring quantities of reactants and placing them in erlenmeyer flask
d - drying precipitate on the hotplate
e - heating of synthesis solution inside the hood
f - crystallizing aspirin in the ice bath
g - rinsing crystals with cold di water

arrange them in order

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.

11 players on a field that has a maximum of 11 players

put the answers   and i could answer.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.