Information from a Material Safety Data Sheet (MSDS) for hydrochloric
acid is provided below. Which section shown on the MSDS lists a physical
property of hydrochloric acid?
HCI: HYDROCHLORIC ACID
Description: Light yellow clear solution mixed with water. This acid
has a very low pH. It has a melting point of -46°C and a boiling point
of 85°C.
Hazards: Corrosive to skin and eyes. May be harmful when vapors
are inhaled, or when acid is ingested.
Reactivity: Highly reactive with metals to produce hydrogen gas.
Flammability: Not flammable
___________________________
•A. Description
* 5 points
OB. Hazards
OC. Reactivity
D. Flammability

Answer:

300 m

Explanation:

Answer:

300

Explanation:

20x15=300

i know that someone else already got this i just showed the work

Answer:

using a diffrent colored light with a higher frequency

Explanation:

Answer:

The solutions are most likely hydrogen peroxide since it is the compound of hydrogen and oxygen that has a ratio of Hydrogen to Oxygen ratio of 1 : 1.

Note:The question is not complete.

Explanation:

The empirical formula of the two compounds are determined

Solution in beaker A:

Mass of Hydrogen = 4.425 g

Moles of hydrogen = reacting mass/molar mass = 4.425 g / 1 g/mol = 4.425 moles

Mass of oxygen = 70.575 g

Moles of oxygen = reacting mass/molar mass = 70.575 g / 16 g/mol= 4.411 moles

Mole ratio of Hydrogen to Oxygen = 4.425 : 4.411

Simplest mole ratio = 1 : 1

Therefore, empirical formula of solution in A = H₁O₁

Solution in beaker B:

Mass of Hydrogen = 7.38 g

Moles of hydrogen = reacting mass/molar mass = 7.38 g / 1 g/mol = 7.38 moles

Mass of oxygen = 117.6 g

Moles of oxygen = reacting mass/molar mass = 117.6 g / 16 g/mol= 7.35 moles

Mole ratio of Hydrogen to Oxygen = 7.38 : 7.35

Simplest mole ratio = 1 : 1

Therefore, empirical formula of solution in B = H₁O₁

The solutions in beakers A and B have the same empirical formula. Their molecular masses are not given, so their molecular formula is not certain. However, the solutions are most likely hydrogen peroxide since it is the compound of hydrogen and oxygen that has a ratio of Hydrogen to Oxygen ratio of 1 : 1.

Explanation:

solution 1) homogeneous

2) do not scatter light

3) cannot be separated by filtration

Colloids 1) heterogeneous

2) scatter light

3) cannot be separated by filtration

suspension 1) heterogeneous

2) may either scatter light or be opaque

3) can be separated by filtration

when liquid water changes into solid ice, it increases in mass

Answer:

A There are the same number of atoms of oxygen and hydrogen in the reactants as there are in the products.

Explanation:

Matter is conserved in a chemical equation if there are no loss of atoms. That means, total number of atoms of elements must be the same as the total number of element on the product side. The correct option is;

A. There are the same number of atoms of oxygen and hydrogen in the reactants as there are in the products.

Answer:

its A. i just did dat

Answer:

1 × 10²⁴ atoms O

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

Step 1: Define

30 g O

Step 2: Identify Conversions

Avogadro's Number

Molar Mass of O - 16.00 g/mol

Step 3: Convert

[tex]30 \ g \ O(\frac{1 \ mol \ O}{16.00 \ g \ O} )(\frac{6.022 \cdot 10^{23} \ atoms \ O}{1 \ mol \ O} )[/tex] = 1.12913 × 10²⁴ atoms O

Step 4: Check

We are given 1 sig fig. Follow sig fig rules and round.

1.12913 × 10²⁴ atoms O ≈ 1 × 10²⁴ atoms O

Answer:

B

Explanation:

Because the mass of an object increases, then the acceleration will decrease

Answer:

Law of conservation of matter

Explanation:

"matter is neither created nor destroyed."

Answer:

I think that should help....

Answer:

33km due south

Explanation:

Morant Bay is 33km south of Port Antonio;

  Problem: displacement of Morant bay from Port Antonio;

Displacement is a vector quantity. It is the length of path between two position and the direction inclusive.

So, it has magnitude and must be specified with a direction.

The units for the mass of aluminium sulphide is g/mol.

Aluminium sulphide is a chemical compound with the formula Al2S3 and has the mass of 150.158 g/mol.

A unit is a standard that are used for making comparisons in measurements.

Unit conversions allow for measurements of a property that have been recorded using different units like centimetres to inches.

Hence, the units for the mass of aluminium sulphide is g/mol.

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Answer:

59.09%

Explanation:

13/22*100=59.09%

The environment is indispensable in the molding of humans from pre historic times.

The term environment has to do with the surroundings of man. It is the area that surrounds man. Man is shaped by his environment because it has a profound influence on how man reasons and behaves.

In Psychology, the nature - nurture controversy has been a big subject of debate. This theory holds that the environment in which a person was born has a profound influence on the attitudes and perceptions of the individual.

This has held true in so many instances for instance, the faiths that we profess for most of our lives is the result of the religious upbringing that we received in the earlier years of life.

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Answer:

b shale

Explanation:

Answer:

12 number of moles of carbon dioxide are used.

Explanation:

Given data:

Number of moles of oxygen produced = 12 mol

Number of moles of CO₂ used = ?

Solution:

Chemical equation:

6CO₂ + 6H₂O      →     C₆H₁₂O₆ + 6O₂

Now we will compare the moles of oxygen with carbon dioxide.

                     O₂            :          CO₂

                      6             :             6

                    12              :             12

Thus, 12 number of moles of carbon dioxide are used.

Answer:

Oo Japan. I love japan it’s so pretty and I wish I could go there, it’s my dream place to visit!

Explanation:

Answer:

A) They are both solid.

Answer:

Number of protons = 16

Number of neutrons = 16

Number of electrons = 18

Explanation:

The atom given is (32,16)S_2.

This simply Sulphur atom.

What (32,16)S_2 implies is that;

Atomic number = 16

Mass number = 32

Now atomic number means number of protons present in the atom

While mass number means number of sum of protons and neutrons present in the atom

Thus;

Number of protons = 16

Number of neutrons = 32 - 16 = 16

Now, for a neutral atom, number of protons is equal to number of electrons.

However, in this case it's not neutral but has a charge of -2.

Thus,

Number of electrons = 16 + 2 = 18 electrons

Answer:

Hydrogen bonding

Explanation:

Water is a compound found readily in nature. It is made up of interatomic forces of covalent bonds that connects the hydrogen and oxygen bonds together in a definite ratio.

Answer:

Answer is c....115°C

Explanation:

Gay-Lussacs law says that pressure of a gas is the same as temperature when the volume is kept the same

P / T = k

where P - pressure , T - temperature in kelvin and k - constant

parameters for the first time are on the left side of the equation and parameters for the second instance are on the right side of the equation

T1 - 25 °C + 273 = 298 K

substiuting the values in the equation

T2 = 388 K

temperature in celcius - 388 K - 273 = 115 °C

Based on the calculations, the new temperature of this ideal gas at constant volume is equal to: C. 115°C.

Given the following data:

In order to calculate the new temperature of this ideal gas at constant volume, we would apply Gay Lussac's law.

Mathematically, Gay Lussac's law is given by this formula;

P α T

P = kT

Where:

Substituting the given parameters into the formula, we have;

[tex]\frac{P_1}{T_1} =\frac{P_2}{T_2} \\\\\frac{0.96}{298} =\frac{1.25}{T_2} \\\\0.96T_2 =372.5[/tex]

T₂ = 372.5/0.96

New temperature = 388.0 K.

Conversion:

°C = K - 273

°C = 388.0 - 273

New temperature = 115°C.

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The mass of the nitrogen atoms in ammonia is 6.33 g.

We know that ammonia is made up of nitrogen and hydrogen and hydrogen. There is one mole of nitrogen and three moles of hydrogen in a mole of ammonia.

Since the ratio of the atoms of hydrogen to nitrogen is 3:1, the ratio of the masses of the atoms is; 1/3 = x/19

x = 6.33 g

The mass of the nitrogen atoms in ammonia is 6.33 g.

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The statement that is true about compounds is that

the compound formed is different both physically and chemically compared to the elements that formed it, Compounds require lots of energy to be formed and to be separated and Compounds are easy to identify by their chemical formula. That is option D.

Chemical compounds are chemical substances that are made up of elements which are chemically combined together.

The combination of these elements leads to the formation of new chemical bonds making the newly formed chemical compounds different from the elements that formed it.

During the formation of these chemical compounds, bonds are being broken while other bonds are being formed to make a different chemical compounds.

The energy that is always required to breaks the chemical bond is called the bond energy.

To be able to identify a chemical compound, a chemical formula is being used for example, C6H12O6 is the chemical formula for glucose chemical compound.

Therefore, the statement that is correct concerning a chemical compound include the following:

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Perfume molecules are in constant random motion

When a person wearing perfume enters the room it takes several minute for a smell to reach at the back of the room because the perfume molecules are in constant random motion they bump into each other causing some molecules to be occasionally sent hurtling out of the mass   the perfume is sprayed in corner of a room, it will be smelt soon after in the opposite corner and also the process called as diffusion means it travel the area of high concentration to low concentration that's why perfume molecules are in constant random motion that's why it take several minutes to reach at the back of the room

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Mass of Magnesium nitrate produced : 593.2 g

The reaction equation is the chemical formula of reagents and product substances

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

2HNO₃ + Mg(OH)₂ → Mg(NO₃)₂ + 2H₂0

mol HNO₃ = 8

From the equation, mol ratio of HNO₃ : Mg(NO₃)₂ = 2 : 1, so mol Mg(NO₃)₂ :

[tex]\tt \dfrac{1}{2}\times 8=4~moles[/tex]

Mass Mg(NO₃)₂(MW=148,3 g/mol) :

[tex]\tt mass=mol\times MW\\\\mass=4\times 148,3 g/mol\\\\mass=593.2~g[/tex]

Answer: is Cesium (Cs)

Empirical formula tells us the relative ratios of different atoms in a compound.

The chemical formula for a compound obtained by composition analysis is always the empirical formula.

How to calculate Empirical formula:

Linalyl acetate (bergamot oil):

              Carbon               Hydrogen                  Oxygen

                73.41 %                   10.29 %                  16.30 %

             73.41 / 12               10.29 / 1                   16.30 / 16

               6.11                          10.29                        1.01

            6.11 / 1.01                10.29 / 1.01                1.01 / 1.01

                 6                            10                                1

          Empirical formula : C₆H₁₀O

Thus we can conclude that empirical formula of linalyl acetate is  C₆H₁₀O

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The empirical formula for Linalyl acetate expresses the relative proportions of different atoms in a compound.

Linalyl acetate is a phytochemical found in a variety of flowers and spice plants. It is an important component of bergamot and lavender essential oils. It is the linalool acetate ester, and the two are frequently found together.

Hence, the empirical formula describes the relative proportions of different atoms in a compound. The chemical formula for a compound obtained through composition analysis is always the empirical formula.

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B is the limiting reactant in this equation.

The limiting reactant is the reactant that is present in the smallest amount in the system. The continuity of the reaction depends on the concentration of the limiting reactant.

It must also be said that the reactant that yields the least amount of product is the limiting reactant. We know that; A(g) + 5B(g) -----> 3C(g) + 4D(g).

We can see that;

1 mole of A gives 3 moles of C

5 moles of B gives 3 moles of C

1 mole of B gives 3/5 moles of C

Thus, B is the limiting reactant in this equation.

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Answer:

2.5 meter per second

Explanation:

momentum = mass multiplied by velocity

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