HELP QUICK An unknown substance is a liquid and is red in color.
How can you determine if the unknown is a mixture or a pure substance?

Answer:

This is because sodium chloride has electrostatic forces of attraction and thus this tends to hold the the sodium and chloride ions very strongly and thus responsible for the high melting point. Sodium chloride is very soluble in water than naphthalene.

Explanation:

This is because sodium chloride electrostatic forces of attraction ad thus this tend to hold the sodium and chlorine ions very strongly thus it is responsible for the high melting point.

[tex]\\ \bull\sf\longmapsto 2:2=3:x[/tex]

[tex]\\ \bull\sf\longmapsto \dfrac{2}{2}=\dfrac{3}{x}[/tex]

[tex]\\ \bull\sf\longmapsto \dfrac{3}{x}=1[/tex]

[tex]\\ \bull\sf\longmapsto x=3mol[/tex]

Answer: if doing it on ck-12 the answer is 40.1

Explanation:

There are produced 40.1 grams of ammonium chloride (NH₄Cl) in the reaction between 17.0 g of ammonia (NH₃) and 26.6 g of chlorine gas (Cl₂).

The reaction between ammonia and chlorine gas is the following:

8NH₃ + 3Cl₂ → 6NH₄Cl + N₂        

Initially, we have:

According to the conservation of mass, matter cannot be created or destroyed, only can be transformed, so the mass of the reactants must be equal to the mass of the products.  

The mass of ammonium chloride produced is:

[tex] m_{r} = m_{p} [/tex]

[tex] m_{NH_{3}} + m_{Cl_{2}} = m_{NH_{4}Cl} + m_{N_{2}} [/tex]

[tex] 17.0 g + 26.6 g = m_{NH_{4}Cl} + 3.50 g [/tex]

[tex] m_{NH_{4}Cl} = 17.0 g + 26.6 g - 3.50 g = 40.1 g [/tex]

Therefore, 40.1 grams of ammonium chloride are produced in the reaction.

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Answer:

it would gain three electrons

Explanation:

have a nice day

Answer: It would gain THREE electrons

Explanation:

took the assessment got 100% hope you get the same

Answer:

small i think

Explanation:

Answer:

just do it

Explanation:

However, there are also many people with the opposite problem of being too skinny (2Trusted Source).

This is a concern, as being underweight can be just as bad for your health as being obese.

Additionally, many people who are not clinically underweight still want to gain some muscle.

Whether you’re clinically underweight or simply struggling to gain muscle weight, the main principles are the same.

This article outlines a simple strategy to quickly gain weight — the healthy way.

Answer:

Eat more than what calories you burn, eat food with nutrients and eat more frequently. Exercise so you can gain muscle.

Answer:

The answer is D. Due to the rotation of earth being a cause is true.

Explanation:

Answer:

40

Explanation:

300÷15=20

20×2=40

hope this helps

Answer:

300(2)

Explanation:

given:

2 sticks of butter

how much butter if 300

multiply it

Answer:

A. they work together with the environment.

Explanation:

Because work together is what keep the environments clean and tidy.

in case you mean greenhouse gases they are increasing due to the result of human activities in relation to fossil fuels. the concentration of greenhouse gases also increases due to deforestation. the concentration increases as more is entering the atmosphere than it is being removed.

Answer:An atom is a particle of matter that uniquely defines a chemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. Each electron is negatively charged. The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.

Explanation:

Answer:

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describe atom in your own words​

The atom is the smallest unit of an element that retains the properties of that element.

Explanation:

Therefore, I hope this helps!

The answer is:

Because they have 1 more or less electron in there last orbit, so they are very active to form compounds which make them stable.

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Answer:

the answer is flowering plant.

Explanation:

i hope it helps. later.

Answer:

The size of the atom closest to 30 to 300 pm

Explanation:

Explanation:

weight/volume percentage concentration = (mass in g  ÷  volume) × 100

                                                                      =  (0.850 g ÷ 20 ml) × 100

                                                                      = 4.25 g/ml %

∴ the weight/volume percentage concentration of the sucrose solution is 4.25 g/ml %.

Answer:

Diffusion :  

the spreading of something more widely.

-AND-

Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth. Motion energy is energy stored in the movement of objects.

Explanation:

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Answer:

wouldn't it be (D)

Explanation:

Igneous, Sedimentary & Metamorphic, because those are the type of rocks?

Answer:

D

Explanation:

The equation of the electrolysis of water is as follows; 2H2O(l) ----> 2H2(g) + O2(g).

Electrolysis is the break down of a compound owing to the passage of direct current through the compound. The electrolysis of water yields the compounds hydrogen and oxygen in a ratio of 2:1.

The equation of the electrolysis of water is as follows; 2H2O(l) ----> 2H2(g) + O2(g).

Learn  more about electrolysis: https://brainly.com/question/12054569

Answer:

Molar mass CaCO3 = 100 g/mol

Explanation:

So if we have 75 four or 5 g of the sample And there is 25.8 Percent calcium carbonate by mass. That's 25.8 g of calcium carbonate In 100 g of the sample. I'll do the most application at the end. Um And then if we know the grams of calcium carbonate, well, just reverse the conversion factor. Yeah, 100 g of the sample contains 25 0.8 grams of calcium carbonate. And when we do this, multiplication division, for part a 75.45 Times 25.8, divided by a 1000 Uh 23 significant figures is 1.9 five g of calcium carbonate. Mhm. And then for part B 18.8 times 100 Divided by 25.8 is 2. 3 significant figures 72 0.9 grams. Mhm of the sample. Yeah.

Answer:

Water and sanitation services contribute to greenhouse gas emissions. Choice of wastewater treatment technologies, improved pumping efficiency, use of renewable sources of energy, and within-system generation of energy offer potential for reducing emissions.

Explanation:

Answer:

mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

Explanation:

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Answer:

i thank its 4)

Explanation:

becuse if they have reactino or no reatino will it 4) becuse i did this

Answer:

physical has a fundamental explanation and chemical properties has reversibility explanation with their three examples of discussion,reversibilitation and differences.

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Answer:

!!!!!!!!!!!!!!!!!

Explanation:

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Answer:

Ca(OH)2 + CO2 --> CaCO3 + H2O

Explanation: