4. Select all that is considered spontaneous a. Cleaning your room b. A piece of bread molding after being left out in the sun c. A bomb exploding d. Pushing a ball up a ramp e. Ice melting f. Frying an egg g. Putting together a puzzle

Q: Suppose a teaspoon of magnesium filling and a teaspoon of powdered sulfur are placed together in a…

A: MIXTURE : Mixture is defined as the physical combination of two or more different substances such…

Q: hy was it important to perform several tests on the unknown solid? Opifferent tests allow you to…

A: A question based on the properties of solids. From the 4 given options, the most appropriate option…

Q: - At which temperature does water have its greatest density?

A:

Q: 5. In which separation method are mixtures spun in a circle? A) filtration B) centrifugation C)…

A: Separation methods are techniques used to isolate and purify different substances in a mixture.…

Q: Classify these substances. More than one answer may apply in each case. N2 solution O homogeneous…

A: Element - It is a pure substance made up of only a single atom.  Compound - It is a pure substance…

Q: A soda contains 48 grams of sugar in 342 grams of water. What is the mass percent of the sugar in…

A: mass of sugar = 48 g mass of water = 342 g mass percent of sugar in the water = ?

Q: When measuring water or water-based liquids in a graduated cylinder or other liquid measuring…

A: This due to the surface tension, cohesive force and adhesive force. Surface tension is the tendency…

Q: :C: ل - - Na

A: There are 2 steps in the mechanism that lead to the formation of ester as the product.

Q: A salt water solution is classified as what type of matter? O homogeneous mixture O heterogencous…

A: Homogeneous Mixture: A homogeneous mixture is a mixture in which the composition is uniform…

Q: If one unknown liquid has a volume of 25mL and the other one has a volume of 35mL, are they the same…

A: Given that, an unknown liquid gas a volume of 25 mL. Also, given that another one liquid has a…

Q: If it says to add 64oz to 250 gallons, hiw many ounces would you add to 30 gallons?

A:

Q: A sample is said to be homogeneous if 1. OThe sample has a different composition in different parts…

A: Correct answer is (2.) The sample is completely mixed up. Homogenous mixture has uniform mixture and…

Q: What unknown solid sample has a melting point range between 119 degrees celsius to 122 degrees…

A: Benzoic acid is a white crystalline solid with a melting point of 122oC. So if the range of melting…

Q: Which phase of matter is the most ordered? O Solid O Gas O Liquid

A: There are three phases of a matter. By varying the temperature and pressure the phase of the matter…

Q: Convert 346 K to °F:

A: Given : The temperature in kelvin=346 K To determine : The temperature in  °F=?

Q: Select the properties that are good differentiating characteristics of substances: i) Multiple…

A: Given, Properties that are good differentiating characteristics of a substances :  a. Volume b.…

Q: How many Calories are in 4406 J? Round to two decimal places.

A: The magnitude of a quantity in one unit can be converted to the other unit by addition, subtraction,…

Q: A 540.3 mL sample of carbon dioxide was heated to 307 K. If the volume of the carbon dioxide sample…

A: Given: Initial Volume V1 = 540.3 mL = 0.5403 L Initial Volume V1 = 789.6 mL = 0.7896 L.  Final…

Q: What volume (in L) would 375 g of sunflower oil occupy

A: volume is not a fundamental unit , it is derived unit .

Q: A quantity of substance that can be seen would be considered the A level.

A: The complete sentence is: "A quantity of substance that can be seen would be considered the…