All categories

3 years ago

A student is worried about determining if a chemical is radioactive. Which

Chemistry

1 answer:

Mamont248 [21]3 years ago

8 0

Answer:

Hazards Identification

Explanation:

A safety data sheet, SDS, is an informational document provided by the manufacturer or importer of a hazardous chemical detailing the chemical, physical, health, and environmental health hazards associated with the chemical as well as safety precautions in handling the chemical.

Some of the sections in the SDS include:

Product Information: It identifies the chemical as well as its recommended uses. The contact information of the manufacturer is also provided.

Fire fighting methods: It gives measures and guidelines necessary for fighting a fire caused by the chemical.

Physical and chemical properties: states the physical and chemical properties of the chemical substance such as: appearance, odor, pH, melting/freezing point, boiling point and boiling range, flammability, etc.

Hazards identification: states the hazards of the chemical and the necessary warnings regarding the hazards. Some of the information provided include: hazard classification of the chemical (for example flammable liquid, oxidizing gases,explosives, etc), signal word, hazard statement (for example radioactive), pictograms, precautionary statements, etc.

<em>From the above information provided, the student should refer to the hazards identification section.</em>

You might be interested in

What statement accurately describes dark matter

Alexxandr [17]

The statement that accurately describes dark matter is that It is invisible and It does not emit electromagnetic radiation.

<h3>What is dark matter?</h3>

Dark matter is defined as the particles that makes up most of the mass of galaxies and galaxy clusters. They are also responsible for the way galaxies are organized on grand scales.

The features or characteristics of dark matter is that they are invisible and they do not emit electromagnetic radiation.

Learn more about electromagnetic radiation here:

brainly.com/question/1408043

#SPJ1

6 0

1 year ago

What is the density of a gas with a molar mass of 28.26 grams per mole at 3.510 ATM in 237 Kelvin

Vikki [24]

<h3><u>Answer;</u></h3>

= 5.1 g/L

<h3><u>Explanation;</u></h3>

Using the equation;

PV = nRT , where P is the pressure,. V is the volume, n is the number of moles and T is the temperature and R is the gas constant, 0.08206 L. atm. mol−1.

Number of moles is 1 since one mole has a mass equivalent to the molar mass.

Therefore; We can find the volume and thus get the density.

<em>V = nRT/P</em>

<em> = (1 × 0.08206 × 237)/3.510</em>

<em> = 5.5408 L</em>

<em>Hence; Density = mass/volume </em>

<em> = 28.26 g/5.5408 L</em>

<em> = 5.1 g/L</em>

<em>The Density is 5.1 g/L or 0.005 g/cm³</em>

6 0

3 years ago

Consider four beakers labeled a, b, c, and d, each containing an aqueous solution and a solid piece of metal. identity the beake

puteri [66]

To identify in what beakers will a reaction occur, we need to know what aqueous solution is in the four beakers. Then, we also need to know what metals are placed inside those beakers. Now, we can analyze which metals might or will react to the solution in the beakers.

4 0

3 years ago

Please need help..

bogdanovich [222]

Answer:

1. The empirical formula => C₆H₁₀OS₂

2. Molecular formula => C₃₆H₆₀O₆S₁₂

Explanation:

1. Determination of the empirical formula.

Carbon (C) = 2.96 g

Hydrogen (H) = 0.414 g

Oxygen (O) = 0.675 g

Sulphur (S) = 2.96 g

Divide by their molar mass

C = 2.96 / 12 = 0.247

H = 0.414 / 1 = 0.414

O = 0.675 / 16 = 0.042

S = 2.96 / 32 = 0.0925

Divide by the smallest

C = 0.247 / 0.042 = 6

H = 0.414 / 0.042 = 10

O = 0.042 / 0.042 = 1

S = 0.0925 /0.042 = 2

Therefore, the empirical formula is

C₆H₁₀OS₂

2. Determination of the molecular formula.

Molar mass of compound = 972 g/mol

Empirical formula => C₆H₁₀OS₂

Molecular formula =>?

Molecular formula = [C₆H₁₀OS₂]ₙ

Molecular formula = molar mass of compound

Thus,

[C₆H₁₀OS₂]ₙ = 972

[(12×6) + (10×1) + 16 + (32×2)]n = 972

[72 + 10 + 16 + 64]n = 32

162n = 972

Divide both side by 162

n = 972 / 162

n = 6

Molecular formula = [C₆H₁₀OS₂]ₙ

Molecular formula = [C₆H₁₀OS₂]₆

Molecular formula = C₃₆H₆₀O₆S₁₂

3 0

2 years ago

How do you do this problem?

olchik [2.2K]

There are not too many things that are more insoluble than AgCl. When you actually do this experiment, virtually all of the AgCl sinks to the bottom of the test tube (or whatever container you are doing it in). The CuCl2 is very soluble. It is a gorgeous Forest Green with a very slightly blue tinge so you can tell that you are successful.

CuCl2 is very soluble.

That makes A incorrect.

AgCl is really insoluble

Looks like B is the answer.

C is just wrong. No complex is formed. The equation is a double replacement.

AgNO3 + HCl ====> AgCl(s) + HNO3 Not a good example but it is correct.

Cu(NO3)2 + 2HCl ===> CuCl2 + 2HNO3

D is not true. Ag will react with the HCl That's how you get AgCl going to the bottom.

E A double replacement need not transfer electrons. In this case it does not. E is incorrect.

3 0

3 years ago