Which one of the following is a unit of mass? A) μL B) Mg C) cd D) mm2 E) in.

Q: 2. A solution of salt in water is a compound. heterogeneous mixture. a. b. homogeneous mixture. с.…

A: Homogeneous mixture : It is a mixture in which composition is uniform throughout the mixture.

Q: How does an atom differ from a molecule? In what ways are they similar?

A: Molecules composed of atoms bonded together by different kind of bonds. Atom is a sub-component of…

Q: Q1. The colour of silver and gold nanoparticles changes according to the particle's ....... OK

A: The color changes depending on the size/shape of the gold nanoparticles.

Q: Which of the following is not a chemical change? A. burning coal B. making bread rise using baking…

A: A chemical change is a change in which the initial compound is having different structure or formula…

Q: is a homogeneous mixture and not a compound. Explain 2. How could you tell when the milk mixture had…

A: Milk is a homogeneous colloid. Colloids are mixtures that consist of tiny, insoluble droplets…

Q: (b) A sampling plan is necessary to ensure that a laboratory sample is truly a representative of the…

A: Sampling plan is a term widely used in research studies that provide an outline on the basis of…

Q: Convert this unit into an si unit with the basic unit L (up to 3 significant number)

A: The volume of 28.32 L approximately equal to 1 ft3.

Q: A good example of a homogeneous mixture is(a) a cola drink in a tightly capped bottle(b) distilled…

A: A mixture is a blend of components where the constituent components retain their properties and…

Q: 1. What is a unit?

A: A unit of measurement is some specific quantity that has been chosen as the standard against which…

Q: A rock is placed on a balance and its mass is determined to be 20.140 g. When thesame rock is placed…

A: • The values provided in the question are:-  i) Mass of a rock, m = 20.140 g  ii) Initial volume of…

Q: What is the standard SI unit for mass?

A: Mass is a measure of the amount of matter in a substance. Mass measures the amount of matter…

Q: Why does knowing the mass of an object not help you identify what material the object is made from?

A: Mass is not always the same for objects made from same material.

Q: 1. Any sample of matter has mass and takes up space. The main reason for this is because: * a. All…

A:

Q: I am having a difficult time understanding mass versus density when it comes to chemistry. Can I get…

A: Mass and density are two physical properties of objects or any substance.Mass is actually the amount…

Q: Classifaction

A: All matter can be classified as mixture and pure substances. A pure substance is composed of same…

Q: How is an element different than a compound?

A: Definition- An element is a pure chemical substance made of same type of atom.   A compound contains…

Q: What type of matter is this ?

A: An element is that species that contain atoms of same type. A compound is formed by combination of…

Q: Vegetables is an example of  Element? Compound? Homogenerous mixture? Heterogenous mixture?

A: Vegetables are plant or part of plant that are cooked to consume in human body. They contain some…

Q: Which is of the following is an example of a physical property? A) lead forming lead oxide in the…

A:

Q: For each picture (A-E), list ALL descriptions that apply to the sample of matter. DESCRIPTION A B D…

A: A

Q: Which of the following statements is(are) true? a. A spoonful of sugar is a mixture.b. Only elements…

A: The statements, which are all true has to be given.

Q: Find the mass of 8.634 cm3 of an oil having a density of 0.7844 g/cm3

A: As density of oil is given 0.7844 g cm-3.The density of any substance is relationship between its…

Q: A sample of potassium (K on the periodic table) can be classified as what type of matter?…

A: Potassium is metal element and it's release one single electron very easily because after releasing…

Q: Fossils show that humans have existed

A: By studying the fossil record we can tell how long life has existed on Earth, and how different…

Q: C10, +L CI0, + Mg2+ Mg-

A: Concept: Oxidation: Increase in the oxidation number Reduction: Decrease in the oxidation number In…

Q: 19. The density of gold (Au) near room temperature is approximately 19.32 . How many mL micrograms…

A: Density is defined as the ratio of  mass and volume.  To find density in g/mL  mass should be…

Q: Given: Density @23°C = 0.99755 g / mL Total volume Mass of Mass flask Mass of True volume Correction…

A: The data given is,

Q: Brass is an alloy of copper and zinc. Varying the mass per-centages of the two metals produces…

A: Given:  The zinc by mass percentage=34%-37% Mass of yellow zinc=185g Mass of copper=46.5g

Q: 0.50 m = 1.00 g = 22.4 L= 345 g = 3.001 cg= mm _kg mL _kg mg 2.00 km = 01.00 cm = 5.00 g = 10.0 nm =…

A: Conversion factor is the ratio that provides the relation between distinct units of the same…

Q: 2. Homogeneous mixtures(s) A. distilled water B. gasoline C. sandy water D. copper turnings + iron…

A: A. distilled water is a pure substance, not a homogeneous mixture. B. gasoline is homogeneous…

Q: You are given a hammer, a battery, a bulb, wires and switch.(a) How could you use them to…

A:

Q: 22. Which of the following particulate illustrations represent pure substances and which represent…

A: (a)

Q: G. An irregularly-shaped sample of aluminum (- put on a balance and found to have a mass of 43 9.…

A: Volume of copper = Difference in the water levels…

Q: 32. Which of the following is a Physical Property of a substance? A) Burning of gasoline B) Cutting…

A: Physical property is measurable. Physical property doesn't change nature of substance. While…

Q: Q8. Write the names of these laboratory equipment (A,B and C) in the belo B C➡ A h

A: This apparatus is used in titration experiment.

Q: b) the mass of used acetylene in pounds 0.734 0.434 0.299

A: 40 inches long and 6 inches diameter a drum contains acetylene at a initial pressure of 250 psia…

Q: A sheet of Aluminum (Al) foil has a total area of 1.000 ft2. The mass of that Al foil is 3.636g. The…

A: Calculate the volume of aluminum foil:

Q: What is the classification of the substance in the figure? O A. compound O B. heterogeneous mixture…

A: Compound is the substance which is made by combining of two or more same or different elements.…

Q: description of an element at the particulate level

A: An element is a substance that has only one type of atoms. These atoms are not chemically connected…

Q: what is the current prevailing theory on the most basic unit of matter?

A:

Q: Part B Which of the following properties of a piece of wood are physical properties? Check all that…

A:

Q: 20 Match the picture on the left, with the correct classification on the right. 1 Compound…

A:

Q: Is the process of bananas ripening a chemical change or a physical change? Explain.

A: A Physical change is defined as a change that results in a change in the physical appearance of the…

Q: 1. Metal Ore a. element b.compound c. mixture   2.  Grinding dried leaves into a fine powder…

A: We have to classify metal ore and type of change occuring on grinding leaves.

Q: The density of lead is 11.34 g/mL and the approximate density of water is 1 g/mL. If given 1 Kg of…

A: Given: Density of lead: 11.34 g/mL, mass of lead: 1 kg Density of water: 1 g/mL, mass of water: 1 kg…

Q: You have two objects made mass of 246.5 g. You measur 3.17 cm. Object 2 is a sphere sphere using…

A: According to the question, we have two objects made of the same substances. Object 1 is a cube and…

Q: Matter that has a uniform and unchanging composition is know as a... a. compound b.mixture c.…

A: We can separate everything we see into two different parts:- Substances and Mixtures Substance is…

Q: 1.23 Which separation method is better suited for separating asolution of sugar and water into pure…

A: We know that the given solution mixture that is solution of sugar and water  is a homogenous…