Which organisms provide energy to all other organisms in this food web?

When the reaction xC + yO2 zCO is balanced, what should the coefficients be? (Hint: x, y, and z represent the coefficients.) A. x = 1, y = 1, z = 2 B. x = 2, y = 1, z = 2 C. x = 2, y = 1, z = 1 D. x = 4, y = 1, z = 1

What are index fossils and how are they used to determine the absolute age of sedi mentary rocks

A heating curve has two flat lines, or plateaus. What does the plateau at the higher temperature represent? 1. Boiling of a liquid 2. Melting of a solid 3. Increase in temperature of a substance 4. Decrease of a substance

Becca was trying to figure out which detergent got the most field stains out of a baseball uniform. Which part of her experiment would be the independent variable?

What functions are similar in both eukaryotic and prokaryotic cells

What is the concentration, in mass percent (m/m), of a solution prepared from 50.0 g nacl and 150.0 g of water?

K + H2O - -> KOH + H2 1. How many grams of KOH are produced if 224 g of H2O are used? 2. How many moles of K are used if 20 moles of H2O react? 3. How many grams of H2O are used if 3678 grams of H2 are produced?

The density of a liquid is 1.09 g/ml. what is the volume, in ml, of 27.3 g of this liquid?

Example of ammonia contains 9 grams of hydrogen 42 grams of nitrogen another sample of compound contains 12 grams of hydrogen. calculate the amount of nitrogen in the second sample of ammonia. express you answer with the appropriate units

How many moles of water will be generated during the combustion of 0.38 moles of methyl alcohol (CH3OH) ? 2CH3OH + 3O2 2CO2 + 4H2O