18. How are ionic compounds formed?

A) Atoms share electrons.

B) Elements change into different elements.

C) Atoms gain/lose electrons and are held together by electrostatic forces.

D) Atoms share protons.

4g of sugar is dissolved in 46 g of water calculate the concentration as percent by mass

M&M balance equations

Give the number of atoms of each type of sodium carbonate

What is the reason behind the high surface tension of water?

Explain why an object when thrown in the air or slid across the ground doesn't travel forever

A college student driving to classes produces 8000 kg of carbon dioxide (CO2) in a year, contributing to global warming. What volume of CO2 is produced? (The density of carbon dioxide is 2.0 g/L.)

For the first five steps of glycolysis, the appropriate sequence of enzymes is: A. phosphofructokinase-1 (PFK-1). B. hexokinase / glucokinase. C. fructose bisphosphate aldolase. D. Phosphoglucoisomerase. E. triose phosphate isomerase (TPI). a.

2NO + O2 → 2NO2 What type of chemical reaction is shown above? a combustion reaction b double displacement C synthesis d decomposition e single displacement

Why did Bromophenal solutions change from yellow to blue (what chemical reaction happended) ?

How many milliliters of calcium, with a density of 1.55 g/mL, are needed to produce 85.8 grams of calcium fluoride in the single replacement reaction below? Show all steps of your calculation as well as the final answer.