Based on the behaviors of acids and bases, identify which procedures you would have used to examine an unknown acid that would also be applicable to examining an unknown base.
Check ALL THAT APPLY.
**determining the molar mass
**measuring the pH
**diluting the sample solutions to characterize as a weak or strong base
**isolating a sodium salt of the weak base
**determining the equilibrium constant

Answer:

I think cotton

Explanation:

Because in the kitchen ,there is heat that makes us sweat as cotton is a good absorber of water, it will keep us cool in hot atmosphere of the kitchen.

Sorry but please recheck it again this is my analysis

Answer:bromine , neon , helium , argon , lithium , beryllium

Explanation:

Elements can be divided into three state that are solid, liquid and gas depending the intermolecular forces of attraction, distance between the particles etc. Lithium, beryllium, boron, carbon, sodium, magnesium, iron, copper, etc. are solid at room temperature.

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.

Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Elements can be solid liquid or gas at room temperature.

Therefore,  Lithium, beryllium, boron, carbon, sodium, magnesium, iron, copper, etc. are solid at room temperature.

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Answer:

Explanation:

Which of the following is most likely to be ductile?

a. Metal
b. Nonmetal
c. Metalloid
d. Gas

Answer: a. MetalMetal

The amount of heat energy absorbed when 200 grams of water are heated from 20 C to 60 C is 33,440 Joules.

To find the amount of heat energy absorbed when 200 grams of water are heated from 20 C to 60 C, we can use the equation Q = mcAT.
First, we need to find the value of m, which is the mass of the water in grams. In this case, it is given as 200 grams.
Next, we need to find the value of AT, which is the change in temperature in degrees Celsius.

This can be calculated by subtracting the initial temperature from the final temperature, which gives us 60 C - 20 C = 40 C.
The specific heat capacity of water, C, is given as 4.18 Joules per gram per degree Celsius.
Now we can plug in the values into the equation:
Q = mcAT
Q = (200 g) x (4.18 J/g°C) x (40°C)
Q = 33,440 J
Therefore, the amount of heat energy absorbed when 200 grams of water are heated from 20 C to 60 C is 33,440 Joules.

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We could obtain the number of years that it would  take to decay completely  from the number of half lives that are possible for the sample.

The half life of carbon-14 is the time that it takes for only half of the number of the radioactive atoms to remain. We know that carbon 14 is present in all the living things and its level only begins tp diminish in an organism when the organism dies.

Thus, given that the half life of carbon-14 is 5730 years, we could obtain the number of years that it would  take to decay completely  from the number of half lives that are possible for the sample.

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The total mass of the balloon and its content is 1521.17 g, the number of moles of CO₂ in the balloon is 34.15 mol, and the number of CO₂ molecules in the balloon is 2.06 x 10²⁵ molecules.

a) The molar mass of CO₂ is 44.01 g/mol. To find the total mass of the balloon and its content, we need to add the mass of the balloon (20g) to the mass of the CO₂ inside the balloon.

Mass of CO₂ = number of moles of CO₂ x molar mass of CO₂

Since the balloon is at STP (standard temperature and pressure), we can use the molar volume of a gas at STP (22.4 L/mol) to find the number of moles of CO₂ in the balloon:

Volume of CO₂ = Volume of balloon = 765 L (at STP)

Number of moles of CO₂ = volume of CO₂ / molar volume of a gas at STP

                                          = 765 L / 22.4 L/mol

                                          = 34.15 mol

Mass of CO₂ = 34.15 mol x 44.01 g/mol

                       = 1501.17 g

Total mass of balloon and its content = 20 g + 1501.17 g

                                                               = 1521.17 g

b) Number of moles of CO₂ in the balloon is 34.15 mol

c) To find the number of CO₂ molecules in the balloon, we need to use Avogadro's number (6.02 x 10²³ molecules/mol).

Number of CO₂ molecules = number of moles of CO₂ x Avogadro's number

                                           = 34.15 mol x 6.02 x 10²³ molecules/mol

                                           = 2.06 x 10²⁵ molecules

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The given electron configuration 1s² 2s² 2p⁶ 3s² 3p⁴ denotes the elements helium (He), beryllium (Be), carbon (C), magnesium (Mg), and sulfur (S).

The given electron configuration represents the electron distribution of an atom. Let's break it down and determine the elements denoted by each part:

1s²: This indicates that there are two electrons in the 1s orbital. The first electron shell (n = 1) can hold a maximum of two electrons. Therefore, the first element denoted by this configuration is helium (He).

2s²: This signifies that there are two electrons in the 2s orbital. The second electron shell (n = 2) can hold a maximum of eight electrons. The element with this configuration is beryllium (Be).

2p⁶: This indicates that there are six electrons in the 2p orbitals. The p orbitals are a set of three orbitals within the second electron shell. The element with this configuration is carbon (C).

3s²: This signifies that there are two electrons in the 3s orbital. The third electron shell (n = 3) can also hold a maximum of eight electrons. The element with this configuration is magnesium (Mg).

3p⁴: This indicates that there are four electrons in the 3p orbitals. The p orbitals in the third shell are also a set of three orbitals. The element with this configuration is sulfur (S).

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Thickness of the fail in millimeter is 0.051mm

Thickness is the quality or state of being thick

Here given data is

aluminum(Al) =  24cm by 31cm

Mass =10.35g

Density = 2.70gcm³

We have to find the thickness of the fail in millimeter = ?

So the formula is

thickness = Volume/surface area

So first we have to calculate volume

Volume = mass/density

Volume = 10.35g/ 2.70gcm³

Volume = 3.83

Then the area of foil is

Area = 24cm×31cm

Area = 744cm²

Thickness = volume/area

Thickness = 3.83/744cm²

Thickness = 0.0051cm = 0.051mm

Thickness of the fail in millimeter is 0.051mm

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78.2g is the mass in grams of potassium chloride is produced if 21.0g of potassium metal.

A body's mass is an inherent quality. Prior to the discoveries of the atom as well as particle physics, it was widely considered to be tied to the amount of matter within a physical body. It was discovered that, despite having the same quantity of matter in theory.

Different atoms and elementary particles have varied masses. There are various conceptions of mass in contemporary physics that are theoretically different but physically equivalent.

2K + Cl\(_2\) →2KCl

moles of K = 21.0/ 20=1.05 moles

according to stoichiometric ratio

moles of KCl = 1.05 moles

mass of KCl =  1.05×74.5

                    = 78.2g

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solid.................

Answer:

b solid

Explanation:

i know for a fact

Answer:

I know this was 2 weeks ago, but it was combining.

Explanation:

Answer:

Combining

Explanation

Answer:

Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth's surface.

Answer:

7.50×10¯² lbs = 7.50×10¯² lbs × 453.952 g / 1 lbs

7.50×10¯² lbs = 34.0464 g.

Explanation:

From the question given, the following data were obtained:

1 lbs = 453.952 g

7.50×10¯² lbs =.?

Thus, we can obtain convert 7.50×10¯² lbs to grams as follow:

1 lbs = 453.952 g

Therefore,

7.50×10¯² lbs = 7.50×10¯² lbs × 453.952 g / 1 lbs

7.50×10¯² lbs = 34.0464 g

Therefore, 7.50×10¯² lbs is equivalent to 34.0464 g.

Answer:

Inherited behaviors are behaviors that are passed down genetically. Our genes control things like our hair type and color, our eye color, and our height—but we don't usually think of them controlling our behavior

Explanation:

Answer:

It would take 15 sticks of butter

Explanation:

2 divided by 20 is 0.1

0.1 is how much butter for 1 so now we multiply that by 150

0.1 x 150 = 15

Therefore, you would need 15 sticks of butter for 150 cookies

Answer:

C6H12O6

Explanation:

C6H12O6

Answer:

C₈H₈O₃  

Explanation:

The empirical formula is the simplest whole-number ratio of atoms in a compound.

The ratio of atoms is the same as the ratio of moles.

So, our job is to calculate the molar ratio of C:H:O.

Assume 100 g of the compound.

1. Calculate the mass of each element.

Then we have 63.15 g C, 5.30 g H, and 31.55 g O.

2. Calculate the moles of each element

\(\text{Moles of C} = \text{63.15 g C} \times \dfrac{\text{1 mol C}}{\text{12.01 g C}} = \text{5.258 mol C}\\\\\text{Moles of H} = \text{5.30 g H} \times \dfrac{\text{1 mol H}}{\text{1.008 g H }} = \text{5.258 mol H}\\\\\text{Moles of O} = \text{31.55 g O} \times \dfrac{\text{1 mol O}}{\text{16.00 g O }} = \text{1.972 mol O}\)

3. Calculate the molar ratio of the elements

Divide each number by the smallest number of moles

C:H:O = 5.258:5.258:1.972 = 2.667:2.666:1

4. Multiply by a number to make each ratio close to an integer

Multiply the ratios by three.

2.667:2.666:1 = 8.000:8.000:3 ≈ 8:8:3

5. Write the empirical formula

EF = C₈H₈O₃

Answer:

im pretty sure its 2.7 gms

Explanation:

im not for sure tho

Answer:

Explanation:

The density of a substance can be found by using the formula

\(Density = \frac{mass}{volume} \)

From the question

mass of CCl4 = 3.16 g

volume of CCl4 = 2.0 mL

Substitute the values into the above formula and solve for the Density

That's

\(Density = \frac{3.16}{2} \)

We have the final answer as

Hope this helps you

Explanation:

Ag+(aq) + 2NH3 (aq) ⇄ Ag(NH3)2 (aq)

When it comes to question of this sort, the LeChatelier principle should come to mind. The LeChatelier principle states that changes in the temperature, pressure, volume, or concentration of a system will result in predictable and opposing changes in the system in order to achieve a new equilibrium state.

increasing the concentration of Ag+

This would lead to an increase in concentration of reactants, the system would annul or oppose this change by moving towrds the right, favouring the forward reaction.

decreasing the concentration of NH3

This would lead to a decrease in concentration of reactants, the system would annul this change by moving to the left, favourin the backward reaction.

increasing the concentration of Ag(NH3)2

This would lead to an increase in concnetration of products, the system would annul or oppose this change by moving towards the left, favouring the backward reaction.

b.9.38 ml.The volume of KOH required to neutralize the acetic acid is:9.38ml

The equation for the reaction between acetic acid (CH3COOH) and potassium hydroxide (KOH) is:

CH3COOH + KOH → CH3COO- + K+ + H2O

The titration of acetic acid with potassium hydroxide can be used to determine the concentration of the acetic acid solution. The volume of KOH required to neutralize the acetic acid can be calculated using the equation:

Volume (KOH) =\(\frac{ (Molarity of acetic acid) * (Volume of acetic acid) }{(Molarity of KOH)}\)

In this problem, the volume of KOH required to neutralize the acetic acid is:

Volume (KOH)

\(\frac{(0.400 M) * (15.0 mL) }{ (0.250 M)}\\= 9.38 mL\)

Therefore,It takes 9.38 ml of KOH to neutralise 1 g of acetic acid.

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Complete question:A 15.0 mL portion of a 0.400 M solution of acetic acid is to be titrated with a standarized 0.250 M solution of KOH. What is the expected volume of the KOH solution needed to reach the phenolphthalein end point?

a.22.50 ml

b.9.38 ml

c.6.00 ml

d.3.75 ml

e.24.00 ml

There are approximately 1.62 x 10^25 water molecules in the 499.8 mL bottle of water.

To determine the number of water molecules in the given volume of water, we need to use the relationship between mass, volume, and molar mass of water.

First, we need to find the mass of water in the bottle:

Mass = Density * Volume

Mass = 0.967 g/mL * 499.8 mL = 483.9 g

Next, we need to convert the mass of water to moles using the molar mass of water. The molar mass of water (H2O) is approximately 18.015 g/mol.

Moles = Mass / Molar mass

Moles = 483.9 g / 18.015 g/mol = 26.88 mol

Finally, we can calculate the number of water molecules using Avogadro's number, which is approximately 6.022 x 10^23 molecules/mol.

Number of molecules = Moles * Avogadro's number

Number of molecules = 26.88 mol * (6.022 x 10^23 molecules/mol) = 1.62 x 10^25 molecules

Therefore, there are approximately 1.62 x 10^25 water molecules in the 499.8 mL bottle of water.

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Answer:

no

Explanation:

if it hits the ocean it either floats or sinks depends what type of rock your tossing is it flat or is it not???

Answer:

B?

Explanation:

Answer:

Carbon and oxygen are chemically bonded in it.

Explanation:

The other answer choices do not apply for compounds, but rather for mixtures instead.

Answer:

A new substance forms.

Explanation:

Answer:

B

Explanation: