2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.
3. c) iron and nickel.
Answer from: Quest
answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;
Answer from: Quest
Because you ate playdough
Another question on Chemistry
Chemistry, 22.06.2019 00:00
How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.
As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary