What are four ways you can separate mixture?

Which needs two less valence electrons to complete an octet, X+2? Ne C N Ca

How many grams are in 3.45 moles of co

Which statement about hydrogen bonding is true? Select one: a. Hydrogen bonding is the intermolecular attractive forces between two hydrogen atoms in solution. b.

Are most volcanoes formed on land

Two substances, x and y, are to be identified. substance x cannot be broken down by a chemical change. substance y can be broken down by a chemical change. what can be concluded about these substances?

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.