Astudent produces carbon dioxide gas by heating calcium carbonate in a flask. she collects the gas by bubbling it into a test tube inverted in water. after filling the test tube, the student measures the pressure of the test tube’s contents as 100.6 kpa at a temperature of 24.0°c. find the partial pressure of carbon dioxide in the test tube. the partial pressure of water vapor at 24.0°c is 2.98 kpa.

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Rank the following four acids in order of increasing bronsted acidity : h2f+ , ch3oh, (ch3)2oh+ , ch3sh2+

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.