Which organelle is like the brain cell?
a) vacuole
b) endoplasmic reticulum
c) cytoplasm
d) nucleus

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Joan writes four numbers on the board in standard form, and then she writes their scientific notation