Which statement describes ferns?

A. They have tall, exposed stems.

B. They only have a sporophyte stage.

C. They use spores to reproduce.

D. They are anchored by rhizoids.

When na2cro4 (aq) and agno3 (aq) are mixed, a red colored precipitate forms which is?

Which of the following statements is TRUE? Question 5 options: The emission spectrum of a particular element is always the same and can be used to identify the element.

How are the three phrases of agriculture (shifting, labor-intensive, mechanized monoculture) different in terms of description, restrictions, problems?

Propane has the formula c3h8. if a sample of propane contains 0.20 moles of c, how many moles of h are present?

Answer to page 22 of the investigating Chemistry, Introductory Chemistry from a Forensic Science Perspective.

What is the 3 types of matters

A sunflower turns its head toward sunlight. What triggers this behavior in a sunflower? gravity phototropism presence of nutrients presence of water

Enter your answer in the provided box. A sample of an unknown gas effuses in 14.5 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.42 min. What is the molar mass of the unknown gas

What volume will 0.710 moles of nitrogen gas occupy at STP?

4) Acompound has an empirical formula of Na2co3, and a molar mass of 3.18g/mol. Find its molecular formula.