20g of sugar is stirred into a beaker containing 100 g of water. After the sugar has completely dissolved, the solution is put on the scale. What is the mass of the solution ? help A) 20g B) 80g C) 100g D) 120g

Answers

Answer 1
Answer:

The correct answer is: Option (D) 120g

Explanation:

We are given the following:

Mass of sugar = 20 g

Mass of water = 100 g


When sugar is completely dissolved into water, the mass of the solution will get:


mass-of-solution = mass-of-sugar + mass-of-water

mass-of-solution = 20 + 100

mass-of-solution = 120 g (Option D)

Answer 2
Answer: Its D I Think because mass cant really disappear

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'why is a slanted paper tube considered a ramp?'

Answers

The incline could help things go up the incline plane therefore you can say it is an inclined plane. Hope this helped

What would be the best way to measure Carbon Dioxide in a Soft Drink can?And yes, we were going to do it by taste.

Answers

Read the nutritional facts which says what percent of CO2 there is. If the serving size is there, the calculate accordingly
I sort of know how carbonated beverages are carbonated: a lot of CO2CO2 gets pushed into the liquid, and the container is sealed. There are at least two things I don't know. First, how much carbon dioxide is actually dissolved in the liquid? Second, what is the resulitng partial pressure of CO2CO2 in the headspace and the total pressure in the headspace? I'm interested in cans, plastic bottles, and glass bottles. I know from experience that there is some variation among manufacturers even for the same beverage, so I will be happy with general numbers or a good estimate.

What should be done if a chemical is poured from an original container into another container not intended for immediate use?

Answers

Answer:

Label

Explanation:

You need to search if the chemical need a glass or plastic container. Also if the chemical need to be in a clear or dark container that can protect it from light. Also if need to be a certain temperature, for example, if need to be in the fridge or can be at room temperature.

Most important is that you need to label with the name, formula, date, and if you have the number of lot and the expiration date.

When an atom of the unstable isotope Na-24 decays, it becomes an atom of Mg-24 because the Na-24 atom spontaneously releases:(1) an alpha particle
(2) a beta particle
(3) a neutron
(4) a positron

Answers

A sodium-24 (Na-24) atom has atomic number 11 and mass 24, while a magnesium (Mg) atom has atomic number 12 and mass 24. Therefore the only change is that a particle with (-1) atomic number and (0) mass must have been released by Na-24 to get Mg-24.
This description fits a beta particle, which has a (-1) atomic number and (0) mass.
(2) a beta particle, because and atom "moves up" one place in periodic table, and such thing happens when beta decay occurs.

A solution has a uniform composition and is able to be separated by physical means

has a heterogeneous composition and is able to be separated by physical means

has a heterogeneous composition and is able to be separated by chemical means

has a uniform composition and is only able to be separated by chemical means

Answers

A solution has a uniform composition and is only able to be separated by chemical means.

If you were asked to describe metals and magnetism you could say. A. non–paired electrons spin in opposite directions in all metals, creating a magnetic field. B. metals are magnets because they have more electrons than non–magnetic materials. C. metals can become magnetic if they have many spinning electrons that create magnetic fields. D. the electrons in some metals pair up to create a magnetic field.

Answers

Answer : Option D) the electrons in some metals pair up to create a magnetic field.


Explanation : Most of the metalsare magnetic in nature including some exceptions. When the unpaired electrons get aligned with the magnetic field they posses magnetism. Also there are some paired electrons in metals which align themselves according to the magnetic field and create magnetism in them.

The correct answer is C;  Metals can become magnetic if they have many spinning electrons that create magnetic fields.

Further Explanation;

As long as there are many spinning electrons anything metal will become magnetic. Ferromagnetic is when there are only some certain types of metals that are attracted to magnetic. If you were to make an electromagnet, you would only need to take an insulated wire and wrap it around the metal that has ferromagnetic properties.

Learn more about magnetism at brainly.com/question/1228801

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