What is the mass of 15.0L of NH3 at 27ºC and 900 mmHg?

Which of the following numbers is correctly rounded to three significant figures, as shown in brackets? a. 12,556 [12,500] b. 4.5671 * 10^-9 [4.567 * 10^-9] c. 3.00072 [3.001] d. 0.006739 [0.00674] e. 5.4589 * 10^5 [5.459 * 10^5]

Describe how to combine unequal forces acting in opposite direction

When one moves from The electronegativity value beryllium to nitrogen. a Increases b Decreases C Remains the same d None of the above

What is the empirical formula of the compound? Zn As O

6. State the number of significant digits in each of the following measurements. (a) 1.00 cm

How does temperature affect molecules

The color of Benedictâs solution is blue. What color does it change to in high sugar concentration?

What functional groups of the emulsifying agent provide the hydrophilic character? Do these groups affect the pH?

Which element has atoms that can form single, double, and triplecovalent bonds with other atoms of the same element? (1) hydrogen (3) fluorine (2) oxygen (4) carbon

Which of the following statements best describes the basic structure of an atom? Electrons and protons are in motion around a nucleus that contains neutrons Neutrons are in motion around a nucleus that contains protons and electrons Protons are in