sugar dissolving in water was a good example of what kind of change? A. physical B. chemical C. Electical

Does the chemical symbol for iron come from its English name? Explain

How can gravity's role in tectonic plate motion be described

Nitrogen gas and hydrogen gas are combined in a reaction to produce ammonia. If 3.0 moles of N2 and 12.0 moles of H2 are present in the mixture, which is the limiting reactant?

Which of the following describes volume? A. The number of particles or amount of matter B. Amount of mass contained in a certain space C. How fast the particles of matter are moving D. The amount of space that matter occupies

Which of the following statements explain what is currently known about Earth's oceans? Select all that apply. The ocean is rich in natural resources. Less is known of Earth's oceans than outer space.

Explain, in terms of electrons, why the radius of a calcium ion is smaller than the radius of a calcium atom.

The silkworm feeds on what

For the reaction? Fe+? H2o ⇀↽? Fe3o4+? H2, a maximum of how many grams of fe3o4 could be formed from 354 g of fe and 839 g of h2o? Answer in units of g

Quicklime (CaO) is produced by the thermal decomposition of calcium carbonate (CaCO3). Calculate the volume of CO2 at STP produced from the decomposition of 152 g CaCO3 by the reaction. CaCO3 - > CaO + CO2

What is the nearest star in Gemini