Chemistry High School

Find the mass of a single one of the molecules or ionic compounds listed below. You must show your work in the correct format and include units in your answer to receive credit. Round your final answer to the nearest 0.1.

(YOU DONT HAVE TO CIRCLE WETHER ITS MM OR FM)

Find The Mass Of A Single One Of The Molecules Or Ionic Compounds Listed Below. You Must Show Your Work
Find The Mass Of A Single One Of The Molecules Or Ionic Compounds Listed Below. You Must Show Your Work

Answers

Answer 1
I don’t really know tho

Related Questions

Classify the following as a chemical or
physical property:
Aluminum is a shiny, silver color.
chemical
physical

Answers

Answer:

physical

Explanation:

Predict the products​

Answers

Answer:

1. No reaction.

2. ZnCl₂ + H₂

3. CaCl₂ + H₂

Explanation:

1. Cu + HCl —> ___

From the reactivity series of metals, H is higher that Cu in the series and so, Cu can not displace H from solution.

Therefore, no reaction will occur.

2. Zn + HCl —> ___

Zn is higher than H in the activity series so, it will displace H from acid solution to produce hydrogen gas, H₂.

The balanced equation is given below:

Zn + 2HCl —> ZnCl₂ + H₂

3. Ca + HCl —> ___

Ca is higher than H in the activity series so, it will displace H from acid solution to produce hydrogen gas, H₂.

The balanced equation is given below:

Ca + 2HCl —> CaCl₂ + H₂

McCray, Shy'Anne
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Nasha left a hot bowl of soup in a cool room. Her friend tells her that her soup will get cold if she forgets to eat it. How cold could it get?

Answers

Answer:

The temperature of soup will decrease.

The soup will get as cold as the room temperature.

The temperature of soup will decrease. The soup will get as cold as the room temperature.

What is room temperature?

Room temperature is a range of air temperatures that most people prefer for indoor settings.

Room temperature is defined differently in different places. It generally refers to a range somewhere between 68 and 74 degrees Fahrenheit.

The temperature of soup will decrease. The soup will get as cold as the room temperature.

Learn more about room temperature here:

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Describe a dinner you would like to eat that includes all the main nutrients, but is low in the nutrients that you should limit.

Answers

The only food that provides all the nutrients that humans need is human milk," Hattner said. "Mother's milk is a complete food. We may add some solid foods to an infant's diet in the first year of life to provide more iron and other nutrients, but there is a little bit of everything in human milk.

Dinner including grilled chicken,roasted brussels sprouts and cooked quinoa have all main nutrients and are low in carbohydrates.

What are carbohydrates?

A carbohydrate is defined as a bio-molecule which consists of carbon,hydrogen and oxygen atoms which are usually in the ratio of 2:1 with the empirical formula C[tex]_n[/tex](H₂O)[tex]_n[/tex].

This term is most commonly used in biochemistry as a synonym of saccharide which is a group of sugars, starch and cellulose.

They perform various functions in living organisms. They serve as an energy source and as well as structural components . They are a key component in providing nutrition and are found in wide variety of natural as well as processed foods.

Carbohydrates occur as cellulose in the cell walls of plants and is one of the components of insoluble dietary fibers.

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8. A sample of 16.0g of a metal oxide, MO, is reduced to 12.8g of the metal, M.
What is the relative atomic mass, Ar, of M?

A 32 B 64 C 80 D 128

Answers

Answer:

B 64

Explanation:

i think b 64 is right answer.......

The relative atomic mass is 64g and the metal is copper(Cu).

What is relative atomic mass?The weighted average of the masses of an element’s isotopes in comparison to the mass of a carbon-12 atom is known as relative atomic mass (Ar).The ratio of the average mass of atoms of a chemical element in a given sample to the atomic mass constant is defined as relative atomic mass (Ar) or atomic weight.

The mole ratio for M and O in the compound MO is 1:1.

The mass of oxygen in the 16g compound is 16.0 - 12.8 = 3.2g.

The relative atomic mass of O is 16g. The number of moles of O in the 3.2g is 3.2/16 = 0.2.

Since the M and O gave the same number of moles in the MO, that is their mole ratio is 1:1, then the number of moles of the M in the MO is also 0.2.

Therefore, if 0.2 mole if M weighs 12.8g, then 1 mole of M will weigh 1 x 12.8/0.2 = 64g/mole.

The mole of an element is its relative atomic mass.

Therefore, the relative atomic mass of M is 64g.

Hence, option B is the correct answer.

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Identify the mystery metal using the formula for density (Density = Mass/Volume). The object has
a mass of 95 g and a volume of 4.9 cm3.
O Silver 10.5 g/cm3
O Mercury 13.5 g/cm3
O Gold 19.3 g/cm3
O Copper 9.0 g/cm3

Answers

Since you are using the equation density = mass / volume then all you have to do is plug in the value.
density = 95 g / 4.9 cm3
density = 19.3 g /cm3
So your answer is C
hope this help :)

the cl-cl bond will react more readily, because it has a

Answers

The Cl-Cl bond will react more readily because it has a lower bond energy than the C- H bond.

What is bond energy?

The bond energy refers to the energy required to break the bonds that links two atoms together in a molecule. It is equal to the energy that is evolved when the bond is formed.

In comparing the Cl-Cl bond with the C-H bond, we will find out that the Cl-Cl bond will react more readily because it has a lower bond energy than the C- H bond.

Learn more about bond energy: https://brainly.com/question/26141360

How many moles of O are there in 41.8 grams of O?

Answers

Answer:

[tex]\boxed {\boxed {\sf 2.61 \ mol \ O}}[/tex]

Explanation:

To convert from grams to moles, the molar mass is used. This number tells us the grams per mole of a substance. It can be found on the Periodic Table. Look for oxygen.

Oxygen (O): 15.999 g/mol

Use this number as a ratio.

[tex]\frac {15.999 \ g \ O }{ 1 \ mol \ O }[/tex]

Multiply by the given number of moles.

[tex]41.8 \ g \ O *\frac {15.999 \ g \ O }{ 1 \ mol \ O }[/tex]

Flip the fraction so the grams of oxygen cancel.

[tex]41.8 \ g \ O *\frac { 1 \ mol \ O }{ 15.999 \ g \ O}[/tex]

[tex]41.8 *\frac { 1 \ mol \ O }{ 15.999 }[/tex]

[tex]\frac { 41.8 \ mol \ O }{ 15.999 }= 2.61266329146 \ mol \ O[/tex]

The original measurement of grams has 3 significant figures (4, 1, and 8). Our answer must have the same. For the number we calculated, that is the hundredth place. The 2 in the thousandth place tells us to leave the 1.

[tex]2.61 \ mol \ O[/tex]

41.8 grams of O has 2.61 moles of oxygen.

A neutral solution has what ratio of [H+] and [OH-] ions?

Answers

So at room temperature, the pH and pOH are both 7. This means that in a neutral solution [H+] and [OH-] are in a 1:1 ratio

What mass of oxygen is required to react completely with the burning of 25.0 g of hexane?

Answers

Answer:

88.2

Explanation:

Gopher tortoises live on dry land. They live in large holes that they dig in the soil. Which statement gives the best explanation of how this behavior aids in soil formation?

A. It hardens the soil, allowing less water to reach the rocks underground.

B. It causes weathering of the rocks, as the tortoise breaks the rocks into smaller pieces.

C. It causes weathering of the rocks, as the tortoise breaks the rocks into smaller pieces.

D. It loosens and mixes the soil, increasing air in the soil and the ability to drain water.​

Answers

Answer:

It moves rocks above ground, where they are exposed to more water and wind.

please answer as soon as possible if you can

Answers

Answer:

Second one

Explanation:

hellppppp!!!!
Which of the following is an example of chemical energy?
A. the heat of an oven
B. a plugged in toaster
C. an apple
D. a nuclear power plant

Answers

D is the answer i took the test
the answer is d,a nuclear power plant

Help which one will it be

Answers

Answer:

D

Explanation:

Answer:

the answer is D I did that one in 5th grade

2 CH3Oh + 3O2 + 2CO2 + 4 H2O how many liters of carbon dioxide will be formed form 6 moles of oxygen

Answers

Answer:

89.6 L of CO₂

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2CH₃OH + 3O₂ —> 2CO₂ + 4H₂O

From the balanced equation above,

3 moles of O₂ reacted to produce 2 moles CO₂.

Next, we shall determine the number of mole CO₂ produced by the reaction of 6 moles of O₂. This can be obtained as follow:

From the balanced equation above,

3 moles of O₂ reacted to produce 2 moles CO₂.

Therefore, 6 moles of O₂ will react to produce = (6 × 2)/3 = 4 moles CO₂.

Thus, 4 moles CO₂ were obtained from the reaction.

Finally, we shall determine the volume occupied by 4 moles CO₂. This can be obtained as follow:

1 mole of CO₂ occupied 22.4 L.

Therefore, 4 moles CO₂ will occupy = 4 × 22.4 = 89.6 L

Thus, 89.6 L of CO₂ were obtained from the reaction.

How do you calculate the volume of air displaced by a balloon? Is there a formula? also, how do you calculate the mass of air displaced by balloon?

Answers

P
1
​
V
1
​
=P
2
​
V
2
​

where P1 and V1 are the initial volume and pressure and P2 and V2 are the new volume and pressure.

ASAP
Which best describes water?
A- an element
B- a compound
C- a homogeneous mixture

Answers

Answer:its B

Explanation:

You welcome

A.) water is an compound because it is mixture of 2 elements,
i.e H2 + O2 = H2O

*
The prevailing weather patterns of a region

Answers

Answer:

noun. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. a region or area characterized by a given climate: to move to a warm climate.

Explanation:

due in a bit! please help tysm btw!

Answers

Answer:

Unbalanced

Explanation:

Unbalanced. Hope this helps!

1)Where are irons in our body ?
2) Is there some difference in the way metals and non– metals react with acid ?​

Answers

Answer:

iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin. Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues.

2( non- metals generally do not react with acids but metals react with acids and produce hydrogen gas that burns with a 'pop' sound. You must have noticed that copper does not react with dilute hydrochloric acid even on heating but it reacts with sulphuric 

Which of these is an example of a hypothesis?



HELP ASAP

Answers

Answer:

C. Temperature changes may be due to wind patterns.

Explanation:

A hypothesis is an attempt to explain why something happens. The other answer choices are different parts of the scientific method.

"A" is part of the experiment or procedure.

"B" is part of the experiment or procedure.

"D" is a question that may lead to a hypothesis.

Only C offers a potential testable explanation for a phenomenon.

Answer:

the answer is C: temperature changes may be due to wind patterns.

19 What is the "skin" of the cell?

Answers

Answer:

d cell membrane:)

Explanation:

how many atoms are in 0.25 moles of nitrogen

Answers

Answer:

0.25 mole of NO2 contains 0.25 mole 'N'

one mole contains   6.023 x 10 ^23 atoms

0.25 mole   II------------------------------>?

            = 0.25 x 6.023 x10^23 = 1.5 x 10^23 atoms

Explanation:

if a gas is pumped from a smaller container to a container that is twice size, what happens to the pressure of the gas?

Answers

Pressure is also affected by the volume of the container. If the volume of a container is decreased, the gas molecules have less space in which to move around. As a result, they will strike the walls of the container more often and the pressure of the gas doubles. Increasing the volume of the container would have the opposite effect and the pressure of the gas would decrease.

Hope this helps

What are the 4 limiting factors

It’s in the image~

Answers

Answer:

I'm pretty sure you have it correct

what is the equivalent weight of sodium trioxocarbonate (IV) in the reaction between Hydrochloric acid and sodium trioxocarbonate (IV)?

Correct answer gets brainliest. This is urgent.

Answers

Answer:

Standard acid-base reaction in two stages:

Na2CO3 + HCl → NaHCO3 +NaCl

NaHCO3 + HCl → NaCl + CO2 + H2O

If only a small quantity of acid is added (and the overall solution remains above pH 7), the reaction would stop at stage 1 and you’d be left with an aqueous solution of sodium chloride and sodium bicarbonate. Adding more acid would lead to the bicarbonate being converted to carbon dioxide and water, with the CO2 coming out of solution as a gas and more sodium chloride being produced.

You are practicing classification by sorting pictures into groups based on the characteristics of the kingdoms. While you are sorting, your little brother asks why you placed the above picture in the fungi kingdom. Which of the following explanations should you give your brother?
A.
It belongs in the fungi kingdom because it is unicellular and heterotrophic

B.
It belongs in the fungi kingdom because it is multicellular and can perform photosynthesis

C.
It belongs in the fungi kingdom because it can perform photosynthesis and does not have cell walls

D.
It belongs in the fungi kingdom because it has cell walls and is heterotrophic

Answers

Answer: D

Explanation: fungi kingdom is Hetrotropiv and is unicellular

Which is a gas at room temperature?

Answers

Answer:

Several of the nonmetals are gases in their elemental form. Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature, and are found as diatomic molecules (H2, N2, O2, F2, Cl2).

Explanation:

Answer: B

Explanation:

which has the strongest intermolecular forces​

Answers

Answer:

I think it is B

Explanation:

Answers: A

Explanation: just took the quiz on usatestprep

How many moles are in 120.g of ar?

Answers

Answer:

3 moles of Argon

Explanation:

The molar mass for argon is 39.948 g/mol

[tex]\frac{120g}{39.948g/mol} = 3.004molesAr[/tex]

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