a data is a grouping of patient data or cues that point to the existence of a patient health problem.

Answer:

They´re pretty reactive whit wather forming hidroxydes, they have the same metal brigthness as well the same electrons valence

Explanation:

This can be for the ubications of the protons to the nucleoid of athom

Answer:

# of protons is 95

# of neutrons is 147

Hope this helps!

Explanation:

Answer:

Protons: 95

Neutrons: 148

- Protons and electrons are equal

- To find the amount of neutrons, subtract the amount of protons/electrons from the atomic number

A saturated fatty acid contains zero double bonds between carbons in the chain. In a saturated fatty acid, all carbon atoms are connected by single bonds, allowing each carbon to be fully saturated with hydrogen atoms.

In unsaturated fatty acids, all the carbon atoms are not saturated by the number of hydrogen atoms and therefore they make double or triple bonds with other carbon atoms. Therefore, unsaturated fatty acids may contain carbon atoms with double or triple bonds with adjacent carbon atoms.

Some common examples of saturated fatty acids are- butter, meat fat, tropical oils, etc.

Some common examples of unsaturated fatty acids are- palmitoleic acid, oleic acid, myristoleic acid, etc.

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Answer:

true?

Explanation:

Answer:

i believe it is strong acids, strong bases, and salts.

Explanation:

Hope this helps : )

To draw the alkenes cis-1,2-dichloroethene, trans-1,2-dichloroethene, and 1,1-dichloroethene, we need to understand the concept of alkenes and their structural formulas.

Alkenes are unsaturated hydrocarbons that contain a carbon-carbon double bond. The general formula for an alkene is CnH2n. In this case, we are dealing with alkenes that contain chlorine atoms.

Let's start by drawing cis-1,2-dichloroethene. In this compound, the two chlorine atoms are on the same side of the double bond. The structural formula can be represented as follows:

```
   Cl
    |
H3C=C(Cl)
```

Now, let's move on to trans-1,2-dichloroethene. In this compound, the two chlorine atoms are on opposite sides of the double bond. The structural formula can be represented as follows:

```
   Cl     Cl
    |     |
H3C=C=CH2
```

Lastly, let's draw 1,1-dichloroethene. In this compound, there is only one carbon atom, and both hydrogen atoms are replaced by chlorine atoms. The structural formula can be represented as follows:

```
   Cl     Cl
    |     |
   C=C
```

In these structural formulas, each line represents a single bond, and each corner and end of a line represents a carbon atom. Hydrogen atoms are not explicitly shown, but we assume that each carbon atom is bonded to the appropriate number of hydrogen atoms to satisfy the valence requirements.

It's important to note that these structural formulas represent a 2D representation of the compounds. In reality, molecules are three-dimensional, and the spatial arrangement of atoms can affect the properties and reactivity of the compound. Additionally, there can be different ways to draw the same compound while maintaining the same connectivity of atoms. However, the structural formulas provided above are the most common representations for these alkenes.

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The chemicals found at the crime scene although not mentioned must be Sodium zincate.

Discussion:

An interesting demonstration to show plating and alloys is the conversion of copper coins to silver look-alike coins.

A 'copper' coin when dipped into a solution of sodium zincate in contact with zinc. The coin is plated with zinc and appears silver in colour.

This is a common chemistry classroom trick.

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Answer:

The rain containing excess of acid I called acid rain

Answer:

acid rain

Explanation:

Thats literally what its called

Divide the mass of oxalic acid by the molar mass of oxalic acid. The molar mass of oxalic acid is 90.03 g/mol.

Let's take an example. Suppose you used 1.5 grams of oxalic acid in trial 1. To find the moles of oxalic acid, you would divide 1.5 grams by 90.03 g/mol, which gives you 0.0167 moles. You would then record this value in the table for trial 1. Similarly, you would perform this calculation for all the other trials and record the values in the table.
In Part 3, Step 1, you are asked to calculate the moles of oxalic acid used in each trial. To do this, divide the mass of oxalic acid by its molar mass. Molar mass is the mass of one mole of a substance, and for oxalic acid (H2C2O4), it is approximately 90.03 g/mol. In your table, for each trial, record the mass of oxalic acid used and divide it by the molar mass (90.03 g/mol) to find the moles.

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Since we are given pressure and volume, this tells us that we will be using Boyle's Law.

1) List what you have and what you need.

P₁ = 101.3 kPa

V₁ = 20.0 L

P₂ = 88.4 kPa

V₂ = ?

2) Rearrange your formula and input your values.

\(P_{1}V_{1}=P_{2}V_{2}\\ V_{2}=\frac{P_{1}V_{1}}{P_{2}} \\ V_{2}=\frac{(101.3 kPa)(20.0L)}{(88.4kPa)} \\ V_{2}=22.91855204\\ \)

V₂ = 22.9 L

There really isn't much to explain. All you need to do is use the formula and rearrange it so that the variable that you want is isolated and then plug those numbers in the calculator and you have your answer.

To kinda make sure you're doing this right, using the relationship between variables will help you out. You should know that pressure and volume has an inverse relationship so when pressure goes down, you should expect your volume to go up and vice versa. This is the case since the pressure decreased from 101.3 kPa to 88.4 kPa so it makes that the volume will increase.

Answer:

Vinegar consists of acetic acid (CH3COOH), water and trace amounts of other chemicals, which may include flavorings. The concentration of the acetic acid is variable. Distilled vinegar contains 5-8% acetic acid. Spirit of vinegar is a stronger form of vinegar that contains 5-20% acetic acid.Jun 4, 2019

Explanation:does this answer your question?

The oxidation number and electronegativity are two different concepts in chemistry.

The oxidation number is a number assigned to an element in a chemical compound to indicate the degree of oxidation or reduction of the element. It reflects the charge an element would have if the compound were completely ionic.

Electronegativity is a measure of the ability of an atom in a molecule to attract electrons towards itself. It reflects the strength of an atom's hold on electrons in a covalent bond.

There is a correlation between oxidation number and electronegativity in the sense that elements with high electronegativity tend to have high oxidation numbers. For example, in a compound with a positive oxidation number, the more electronegative element will typically have a higher oxidation number than the less electronegative element. However, this is not a strict rule, as other factors such as the size of the element and the nature of the chemical bond also play a role.

In summary, while there is a relationship between oxidation number and electronegativity, they are two distinct concepts in chemistry with different definitions and applications.

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Answer:

Oxygen is denser

Explanation:

Oxygen is denser than both air and nitrogen, at all temperatures and pressures, but only slightly. Since they don't separate from each other, we generally don't worry which is lighter or heavier. The difference in the density of nitrogen and oxygen gas comes from their molecular weight, which is small (4 g/mol)

Answer:

Oxygen is denser than air.

Explanation:

This is because oxygen gas comes from its molecular weight. Also air is mainly made up of nitrogen and nitrogen is lighter than oxygen.

Answer:

11.5 okkkkkkkkkkkkkkkkkkkkkkkkkkkk chutita

the real concentration of the 0.3 M hydrogen peroxide solution is 6.0 M. To find the real concentration of the 0.3 M hydrogen peroxide solution, we need to use the equation: M1V1 = M2V2

where M1 is the initial concentration of the solution, V1 is the initial volume of the solution, M2 is the real concentration of the solution, and V2 is the volume of the solution used.
Substituting the given values, we get:
0.3 M x V1 = M2 x 5.0 mL
We don't know the initial volume of the solution (V1), so we need to rearrange the equation to solve for M2:
M2 = (0.3 M x V1) / 5.0 mL
Let's assume that the initial volume of the solution was 100 mL. Substituting this value, we get:
M2 = (0.3 M x 100 mL) / 5.0 mL
M2 = 6.0 M
Therefore, the real concentration of the 0.3 M hydrogen peroxide solution is 6.0 M.

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A 0.026 M KOH solution has \([OH-] = 0.026 M, [H3O+] = 10^(-13) M\), and a pH of 12.97.

A potassium hydroxide (KOH) solution is a strong base and dissociates completely in water to produce hydroxide ions (OH-). The molar concentration of KOH can be used to calculate the concentration of hydroxide ions.

[OH-] = 0.026 M

The hydroxide ions will react with water to produce hydronium ions (H3O+), according to the equation:

\(OH- + H2O - > H3O+ + OH-\)

The concentration of hydronium ions can be calculated using the equation:

\([H3O+] = Kw/[OH-] = 10^(-14)/[OH-] = 10^(-14)/0.026 = 10^(-13) M\)

The pH of the solution can be calculated using the equation:

\(pH = -log[H3O+] = -log(10^(-13)) = 13.\)

Therefore, the pH of the 0.026 M KOH solution is 12.97.

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Answer:

protons 30

neutrons 35

electrons 30

A GC-MS produces muti data, including chromatograms for quantitative and qualitative analysis, mass spectra for confirming identity, identifying unknown analytes, and determining the structural and chemical properties of molecules.

The GCMS uses a standard, or a proportion of the component that has already been established and has also been measured on the GCMS, to quantify the concentration of each chemical in a sample.

On a chart known as a chromatogram, a peak for each substance that the GC separates is used to symbolize it. The number of peaks reflects the sample's concentration of separated components. Each peak's location reveals the retention time of the compound.

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There are three kinds of Hydrogen in  2-methyl-2-butene

The correct question is

How many kinds of  hydrogen atoms are present in 2-methyl-2-butene

Atom was discovered by Dalton's Atomic theory , he predicted that each element consist of large number of a very small thing known as atom.

In the structure of 2-methyl-2-butene there are 3 types oh Hydrogen

1. Attached to the Carbon atom connecting the methyl ion to the butene

2. Connected to the last Carbon atom

3. Connected to the Carbon bond having double bond.

Therefore there are three kinds of Hydrogen in  2-methyl-2-butene.

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Answer:

Molar mass of gas = 160 g/mol

Explanation:

Given data:

Mass of sample gas = 1.28 g

Temperature of sample gas = 127°C (127+273 = 400K)

Pressure of sample gas = 1 atm

Volume of sample gas = 0.250 L

Molar mass of gas = ?

Solution:

Formula:

PV = nRT

R = general gas constant = 0.0821 atm.L/ mol.K

Now we will put the values in formula.

1 atm × 0.250 L = n × 0.0821 atm.L/ mol.K ×400K

0.250 L.atm   = n ×32.84atm.L/ mol

n = 0.250 L.atm/32.84atm.L/ mol

n = 0.008 mol

Molar mass of gas:

Number of moles = Mass/molar mass

0.008 mol = 1.28 g / molar mass

Molar mass = 1.28 g / 0.008 mol

Molar mass = 160 g/mol

Answer:

seismic: relating to earthquakes or other vibrations of the earth and its crust.

Answer:

1st one

Explanation:

Answer:

B

Explanation:

chlorine 2×3= 6 not sure

The empirical formula for an ionic compound is typically written in the form of "AxBy," where "A" is the number of atoms of the "parent" element and "x" and "y" are the numbers of atoms of the "daughter" element.

The empirical formula for an ionic compound is a simplified formula that represents the simplest ratio of the number of atoms of each element in the compound. To determine the empirical formula for an ionic compound composed of calcium ions (Ca) and bromide ions (Br), you would need to know the molar mass of each ion and the ratio of the number of moles of calcium ions to the number of moles of bromide ions in the compound.

The molar mass of calcium (Ca) is 40.08 g/mol, and the molar mass of bromide (Br) is 79.9 g/mol. Therefore, the molar mass of the compound is the sum of the molar masses of the ions:

Molar mass of compound = molar mass of Ca + molar mass of Br-

= 40.08 g/mol + 79.9 g/mol

= 119.98 g/mol

To determine the empirical formula, you would need to know the ratio of the number of moles of calcium ions to the number of moles of bromide ions in the compound. For example, if there are 2 moles of calcium ions and 1 mole of bromide ions in the compound, the empirical formula would be "Ca, Br".

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The chemical formula of the ionic compound is XY₂.

During the formation of the ionic compound between an ion X that has a charge of 2+ and ion Y has a charge of 1-, two negatively charged ions of Y are required to form a neutral ionic ionic compound when they react with X.

The chemical the formula of the ionic compound they form is as follows;

X²⁺  + 2Y⁻ ---> XY₂

Therefore, the chemical formula of the ionic compound is XY₂.

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Answer:

4

Explanation:

Answer:

B.

Explanation:

I don't know much about this subject, but it seems that a wave is when the line is above the line in the middle.

3M

3M is the molarity of a koh solution if 200 ml of the solution contains 0. 6 moles KOH.

Molarity : Molarity is defined as the number of moles of solute present in one liter of solution.

We know that,

Molarity = \(\frac{n*1000}{v}\)

where,

n = moles of solute of KOH = 0.6

V= volume of solution in ml= 200 ml

Now on substituting the values in the molarity formula,

molarity = \(\frac{0.6*1000}{200}\) = 3M/L

Therefore, molarity = 3M

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