It is found that 250. mL of a gas at 0°C and a pressure of 1 atm (STP) has a mass of 0.677

g. What is the molar mass?

An empty 3.00 l bottle weighs 1.70 kg. filled with a certain wine, it weighs 4.72 kg. the wine contains 11.5% ethyl alcohol by mass. how many grams of ethyl alcohol are there in 250.0 ml of this wine?

Zachary adds 26.45 g to 2.55 g. How many significant figures should his answer have? twothreefourfive

A weak acid is a dilute acid that is not very powerful a. True b. False

Element X has the following valence electron configuration: [core]ns2np5. Element M has the following valence electron configuration: [core]ns2. What ionic compound would most likely result from the reaction between ions of M and X?

What does H2O mean? What two chemical do you mix to make an exsplosion

You see rainforests a is far as the eye can see It rains every day and the humidity is fiercel Where might you be? Polar climate Tropical climate Subtropical climate Temperate climate

2. A balloon is dunked into a tank of cold water. How will this affect the size of the balloon?

Which of the following correctly describes a compound?

If the [H+] of a solution is 1.0 x 10 to the power of - 2 mol/L the pH is: (pH = - log (H+] 1 12 -2 2 chemistry

Change 5.20 moles of c3h6o2to grams