Question

5 elección múltiple 1 punto which phase of matter has particles that vibrate in fixed positions? liquid gas solid 6 respuestas múltiples 1 punto which phase(s) of matter have particles arranged in a regular pattern? solid gas liquid 7 completar el espacio en blanco 1 punto round 0.199 moles to 2 significant figures. ingrese su respuesta_ moles 8 elección múltiple 1 punto which phase of matter has the highest density? solid gas liquid

Explanation:

Question 5

In solids, particles are closely packed and vibrate in fixed positions due to strong intermolecular forces.

Solids have particles arranged in a regular, repeating pattern because of the strong intermolecular bonds that hold them in place.

Step1: Identify significant - figure rules

For a number less than 1, non - zero digits are significant. We want 2 significant figures.

Step2: Round the number

0.199 rounded to 2 significant figures is 0.20.

Answer:

Solid

Question 6