HELP PLEASE true or false science questions and normal questions 1. true or false: A compound is a substance made of entirely of a single type of atom

2. true or false: fig is a mixture ogpf water droplets in air

3. draining the liquid from a mixture of a liquid and a solid after the particles of the solid substance have settled
^ ^
sifting
decanting
filtration

please write if its true or false and which of the words apply to qs 3 TvT

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Answer

What website is this question on?

Explanation:

1. true or false: A compound is a substance made of entirely of a single type of atom. true

2. true or false: fig is a mixture of water droplets in air. imma just say its false

Explanation:

3. draining the liquid from a mixture of a liquid and a solid after the particles of the solid substance have settled

^ ^

answer : filtration

sifting

decanting

filtration  

by the way ur teacher is a FiretrUCKING geek he/she looked this up on a quiz

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.