“True or False”
Unsaturated solution contains the maximum amount of solute dissolved by a given amount of solvent

Answers

Answer 1

ANSWER- True

EPLANATION


Related Questions

A student heats a 2.5 g sample of calcium carbonate in a test tube. What mass of calcium oxide remains in the test tube when the reaction is complete?
CaCO3(s) = CaO(s) + CO2(g)

Select one:
a. 1.4 g CaO
b. 2.1 g CaO
c. 2.5 g CaO
d. 1.0 g CaO

Answers

Answer:

1.4 g CaO

Explanation:

Given data:

Mass of calcium carbonate = 2.5 g

Mass of Cao remain in tube = ?

Solution:

Chemical equation:

CaCO₃    →     CaO + CO₂

Number of moles of CaO:

Number of moles = mass/molar mass

Number of moles = 2.5 g/ 100 g/mol

Number of moles = 0.025 mol

now we will compare the moles of CaO with CaCO₃.

                    CaCO₃        :          CaO

                        1              :             1

                    0.025         :         0.025

Mass of CaO:

Mass = number of moles × molar mass

Mass = 0.025 mol × 56 g/mol

Mass = 1.4 g

Answer:

1.4g CaO

Explanation:

Did the exam and got it right. Hope this helps

Apple juice can be classified as which of the following?
O A compound
An Element
O A mixture
O A pure substance

Answers

Answer:

mixture

Explanation:

Answer:

Mixture

Explanation:

Calculate the number of protons and neutrons for ²⁴Mg and 88Sr.

Answers

Answer:

12 protons and 12 neutrons are present in Mg and

38 protons and 50 neutrons are present in Sr

Explanation:

Answer:

For ²⁴Mg

1. Proton number = 12

2. Neutron number = 12

For ⁸⁸Sr:

1. Proton number = 38

2. Neutron number = 50

Explanation:

For ²⁴Mg:

1. Determination of the number of proton.

The atomic number of an element is simply defined as the number protons in the atom of the element. The atomic number of ²⁴Mg is 12 since no two elements have the same atomic number.

Atomic number = 12

Proton number = Atomic number

Proton number = 12

2. Determination of the Neutron number.

Mass number = 24

Proton number = 12

Neutron number =?

Mass number = Proton + Neutron

24 = 12 + Neutron

Collect like terms

Neutron = 24 – 12

Neutron number = 12

For ⁸⁸Sr:

1. Determination of the number of proton.

The atomic number of ⁸⁸Sr is 38.

Atomic number = 38

Proton number = Atomic number

Proton number = 38

2. Determination of the Neutron number.

Mass number = 88

Proton number = 38

Neutron number =?

Mass number = Proton + Neutron

88 = 38 + Neutron

Collect like terms

Neutron = 88 – 38

Neutron number = 50

Good day pleases help

Answers

I can’t see the choices can you take another picture of this assignment please so i can help you
The answer is b. Wolves work together

What happens when you put an ice-pop outside? This is for the people who don’t know

Answers

Answer:

It melts

Explanation:

Answer:

It melts?

Explanation:

Need help!!! Don’t understand

Answers

A) Neither carbon nor oxygen has satisfied the octet rule

To begin with...

The bond between carbon and oxygen is suppose to have 3 bonds in between

Second:

The lone pairs are not drawn. Since carbon monoxide has 3 bonds in between it should have a lone pair (2 dots) left over on each atom.

Reminder: in order to satisfy the octet rule EACH atom must have 8 electrons. Carbon has 4 valence shell electrons and oxygen has 6. In order to satisfy this rule, there should be 3 bonds in between which makes a total of 6 for each atom plus the lone pairs that make up the 8.

I hope that’s not too confusing, if you still have any questions please let me know in the comments (:

The partial symbol for a particular ion is 26M2+ What are the number of electrons contained in one ion

Answers

Answer:

24

Explanation:

26-2=24 because when an atoms loses 2 electrons it gains 2+ charge

Is radium usually considered as part of the alkaline earth category in terms of chemistry?

Answers

Explanation:

Radium (atomic number 88) has similar properties to barium and is also in the Group 2 category. However, radium is a radioactive element and is generally under the category of radioisotopes in addition to being an alkaline earth metal, because it is not a stable element.

What is the minimum number of kiloJoules needed to change 40.0 grams of water at 100C to steam at the same temperature and pressure

Answers

Answer:

90.4Kg

Explanation:

The energy required= latent heat of vaporization

Latent heat of vaporization of water= 2260 KJ/Kg

Mass of water = 0.04 Kg

Heat required= 0.04Kg× 2260 KJ/Kg

Heat required= 90.4Kg

Answer: The minimum number of kilo Joules needed is 90.4KJ.

Explanation:

The energy required= latent heat of vaporization.

Latent heat of vaporization of water= 2260 KJ/Kg

Mass of water = 0.04 Kg

Heat required= 0.04Kg× 2260 KJ/Kg

Heat required= 90.4KJ.

Learn more: https://brainly.com/question/2477358

When using a light microscope, focus the specimen with the scanning objective
lens first.
Reasoning:

Answers

Answer:

The light microscope bends a beam of light at the specimen using a series of lenses to provide a clear image of the specimen to the observer.

what are the three things transported by global ocean circulation?

Answers

Answer:

The produce large circular currents in all the ocean basins. Currents, The North Equatorial Current, the Gulf Stream, the North Atlantic Current, and the Canary Current.

Explanation:

EMERGENCY!!! Can someone tell me the answer plz plz I’ll give you brainlist and points plz This is my final test No wrong answers

Answers

Answer:

A. the valence electrons

Explanation:

Answer:

The valence electrons

Explanation:

The valence electrons determine an element's properties because chemical properties of each element are determined by the element's electronic configuration and PARTICULARLY by its outermost valence electrons. I hope it helps!

                      ~Good luck

What math is used to find density?

Answers

Answer:

[tex]\huge\mathtt{{\colorbox{silver}{ANSWER~~~↴}}}[/tex]

Density is the mass of an object divided by its volume. Density often has units of grams per cubic centimeter (g/cm3). Remember, grams is a mass and cubic centimeters is a volume (the same volume as 1 milliliter).

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Balance equation PLEASSEEE HELPPP MEEE ​

Answers

Answer:

2AgNO₃ + MgCl₂ ⇒ 2AgCl + Mg(NO₃)₂

Explanation:

Match both sides of the equation. practice practice

PLEASE HELP! ITS URGENT! I GIVE BRAINLY

Using the Law of Conservation of Matter, determine the number of grams of iron sulfide (FeS) that will be produced in this reaction.112g Fe + 64g S → _____ g FeS *

a. 48g
b. 64g
c. 112g
d. 176g

Answers

Answer:

Its C

Explanation:

If you think about it logically all the other answers don't make sense A and B are to small of a number And D is to Big of a number

Hope this Helps!!

Complete this sentence. If mass remains the same while the volume of a substance ________, the density of the substance will_______________.
(NOT GIVING BRAINLIEST, JUST ANSWERING A QUESTION MOST PEOPLE GOT WRONG ON)
A. decreases, decrease
B. increases, decrease
C. increases, stay the same
D. decreases, stay the same
**It's D**

Answers

Answer:

B. Increases, Decreases

Explanation:

I majored in Chemistry

what did bohr consider electrons as?

A. Discrete particles
B. Continuous particles
C. Particles with zero energy
D. None of the above

Answers

Answer:

D?

Explanation:

I think D hmm is the answer if I am wrong pls anyone or someone type the right answer but for me is d

Answer:

NOT D!!!!

Explanation:

I am taking the quiz on ck12, it is NOT "none of the above"

3. (10 Points) Write a double replacement reaction where one of the products is
copper (11) oxide. Include the states of matter for each of the reactants and
products.

Answers

Answer:

Up to now, we have presented chemical reactions as a topic, but we have not ... A single-replacement reaction is a chemical reaction in which one element is ... single-replacement reactions will occur between two given reactants. This is ... Use the activity series to predict the products, if any, of each equation.

Explanation:

Cobalt (Co) has an atomic mass of 59 and an atomic number of 27. Which statement correctly describes an atom of cobalt?

A. An atom of cobalt contains more neutrons than protons.
B. An atom of cobalt contains more electrons than protons.
C. An atom of cobalt contains the same number of neutrons and protons.
D. An atom of cobalt contains the same number of neutrons, electrons and protons.

Answers

Answer:

A

Explanation:

27 us the number of protons when we subtract 27 from 59 it will be 32 because a mass number is the sum of proton and neutron but tell u more on the comment

Answer: A - An atom of cobalt contains more neutrons than protons.

Explanation: The atomic number is the number of protons in an atom. The atomic mass is the sum of protons & neutrons in an atom. So, with simple math we can figure out the number of neutrons. Total 59 - 27 protons = 32 neutrons. Which means that A is the only right answer in this case.

Little Extra: A & B would both be correct if Cobalt was a negatively charged ion. An atom is an ion if it is charged, and an ion is either negatively charged or positively charged. For example, if Cobalt had 27 protons & 26 electrons it's overall charge would be positive since it has more protons than electrons. And it would be negatively charged if Cobalt had 27 protons & 28 electrons. No charge if there are 27 protons & 27 electrons because proton +1 and electron -1. Imagine 27-27=0 no charge, 27-26= +1 charge, 27-28= -1 charge

I hope this made you smarter.

(oh no)
What is the mass of silicon when there are 1.8 x 10^21 atoms of silicon?

Answers

Answer:

Mass = 0.084 g

Explanation:

Given data:

Mass of silicon = ?

Number of atoms of silicon = 1.8 × 10²¹ atom

Solution:

Avogadro number:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³  atoms

1.8 × 10²¹ atom × 1 mole /  6.022 × 10²³  atoms

0.299× 10⁻² mol

0.00299 mol

Mass of silicon:

Mass = number of moles × molar mass

Mass = 0.00299 mol × 28.1 g/mol

Mass = 0.084 g

Is science logical please help meeeeeee

Answers

Answer:

It kind of is logical so my answer is yes

Yes science is logical

What is this called? it might be sideways but it show look like a Y

Answers

Answer:

I'm thinking it might be Element 39: Yttrium, as this is Chemistry.

Explanation:

* The cost of table salt and table sugar is Rs 15 per kg.
and Rs 69 per kg respectively calculate their cost per mole?​

Answers

Cost per mole

Table salt : Rs 0.878

Table sugar : Rs 23.63

Further explanation

Given

Cost table salt (NaCl) = 15/kg

Cost table sugar(sucrose-C12H22O11) = 69/kg

Required

cost per mole

Solution

mol of 1 kg Table salt(NaCl ,MW= 58.5 g/mol) :

[tex]\tt mol=\dfrac{1000~g}{58.5}=17.09~mol=Rs~15\rightarrow 1~mol=Rs~0.878[/tex]

mol of 1 kg Table sugar(C12H22O11 ,MW= 342 g/mol) :

[tex]\tt mol=\dfrac{1000}{342}=2.92~mol=Rs~69\rightarrow 1~mol=Rs~23.63[/tex]

PLEASE HELP ME MY MOM COMES HOME SOON!! ITS 4AM!!
Blaire is teaching her little brother to ride his bike. She uses 7 N of force to push a 14 kg bike. What is the acceleration?
98 m/s2
0.5 m/s2
21 m/s2
2 m/s2

Answers

Answer:

The solution is

Explanation:

a = f/m

a =7/14

a=1/2

a=0.5

Acceleration of bike is 0.5 m/s²

Given that:

Force used in push = 7 N

Mass of bike = 14 kg

Find:

Acceleration of bike

Computation:

Force = Mass × Acceleration

Force used in push = Mass of bike × Acceleration of bike

7 = 14 × Acceleration of bike

Acceleration of bike = 7 / 14

Acceleration of bike = 0.5 m/s²

Learn more:

https://brainly.com/question/16685492?referrer=searchResults

SOMEONE HELP ME PLEASE ILL GIVE BRAINLY

Answers

answer: chemical change

step-by-step explanation: because if it’s changing through heat, the temperature could be different. Chemical changes happen on a molecular level when you have two or more molecules that interact. Chemical changes happen when atomic bonds are broken or created during chemical reactions. therefore physical change in this given situation isn’t possible.

hope this helped.

i need to know what occupied vs full means for chemistry

Answers

You can get the answer on quizlet or google

If a parent cell has 24 chromosomes , how many chromosomes will each daughter cell have? Then compare the chromosomes in the parent cell and the daughter cells.

Answers

Answer:

If a cell has 24 chromosomes before cell division then daughter cell resulting from mitotic division will have 24 chromosomes while daughter cell resulting from the meiotic division will contain 12 chromosomes each.

Explanation:

"Indicate in each whether the following electron configurations correspond to an atom in its ground state, excited state, or is impossible."

a. [tex]{1s}^{2} {2s}^{2} {2p}^{4} [/tex]

b. [tex] {1s}^{2} {2s}^{2} {2p}^{3} {2d}^{1} [/tex]

c. [tex] {1s}^{2} {2s}^{2} {2p}^{3}{3s}^{1} [/tex]

d. [tex] {1s}^{2} {2s}^{1} {2p}^{2} [/tex]

e. [tex] {1s}^{2} {2s}^{2} {2p}^{1} [/tex]

f. [tex] {1s}^{2} {2s}^{3} [/tex]

Please, I really need help. I don't know what to do...

Answers

Answer:

Explanation:

Firstly, let's define what ground and excited state electronic configuration.

Ground state electronic configuration is when the electrons of the atom are in there lowest possible energy level while excited state electronic configuration is when electron(s) have moved to a higher energy level. Examples of these are provided in the options

a. 1s²2s²2p⁴ - This is a ground state electronic configuration (of oxygen) because the electrons are in there lowest possible energy level.

b. This option is not displaying (it is displaying something like an image that isn't loading)

c. 1s²2s²2p³3s¹ - We can see from this that an electron jumped from 2p energy level to 3s (p energy level ought to be completely filled with 6 electrons before another electron moves to the next energy level) meaning the electron is in it's excited state thus this is an excited state electronic configuration (of oxygen).

d. 1s²2s¹2p² - We can see from this also that an electron jumped from the 2s energy level to the 2p energy level (making it 2p² instead of 2p¹ in the ground state). The 2s energy level should ordinarily have 2 electrons. Thus, this is an excited state electronic configuration (of boron).

e. 1s²2s²sp¹ - This is a ground state electronic configuration (of boron) since all the electrons are in there lowest possible energy level.

f. 1s²2s³ - This configuration is impossible because the s energy level should only contain a maximum of 2 electrons, thus impossible to have 3 electrons in the s energy level

Order the following elements from Highest to Lowest Electronegativity.
K, Sc, Ca, Zn, Br
Sc, K, Br, Zn, Ca
OK, Ca, Sc, Zn, Br
O Br, Zn, Sc, Ca, K
Ca, Zn, Br, K, SC

Answers

Answer:

O, Ca, Zn, Br

Sc, K, Br,

Explanation:

The correct order of the chemical elements from highest to lowest electronegativity is: C. Br, Zn, Sc, Ca, K.

Electronegativity refers to a measure of the ability of an atom of a chemical element to attract any shared pair of electrons.

Generally, the electronegativity of a chemical element typically increases across the period from left to right.

In Chemistry, the electronegativity of some of the chemical element are:

Bromine (Br) = 2.96Calcium (Ca) = 1.0Zinc (Zn) = 1.65Potassium (k) = 0.82Scandium (Sc) = 1.36

Hence, the order of the chemical elements from highest to lowest electronegativity is:

1. Bromine (Br) = 2.96

2. Zinc (Zn) = 1.65

3. Scandium (Sc) = 1.36

4. Calcium (Ca) = 1.0

5. Potassium (k) = 0.82

Read more: https://brainly.com/question/18214726

Whic statements explain why rocks weather at different rates? Check all that apply

Answers

Explanation:

Weathering occurs one of three ways: through physical processes such as freezing and thawing, because of live organisms whose roots break rocks or through chemical processes that occur when carbon dioxide in the soil and air and mixes with water and specific minerals in rocks to form a weak acid that reduces rocks into silt, soil and sediment.

Chemical weathering typically increases as temperatures rise and rain falls, which means rocks in hot and wet climates experience faster rates of chemical weathering than do rocks in cold, dry climates.

Read all above and you may just find your answer!
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Which word or phrase from paragraph 4 helps the reader understand the meaning of the word offal? 1.Introduce a new amendment2.Carry out a law3.A representative form of government4.Approve or pass an amendment5.System where the national government shares power with state governmentsA.ratifyB.executeC.republicanD.proposeE.federalism Please help meFind the value of x. which of the following statements is FALSE? a. alleles are made when one original DNA strand experiences mutations that result in phenotypes that offer advantages b. the DNA of two alleles must be almost identical. since the trait is the same. 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Computer chips may not give you supersight, but they may help some blind people finally see.2Replacing body parts with mechanical devices is called bionics. Scientists have been developing bionic body parts for a long time, but in the last 20 years, they have started using computer chips to make bionic devices better and more effective.3To place a computer chip in an eye, a doctor makes a tiny pocket in the retina, the back of the eye. The retina is like a movie screen, and the lens at the front of your eye focuses light onto it. The computer chip, about the size of a pinhead and thinner than a human hair, is placed inside the tiny pocket. The chip senses light and helps a person see.4Six people were in the first group to allow doctors to put chips in their eyes. The patients say the computer chips have helped them see better. Before the operation, one patient could only see objects that were a few feet away. After the operation was completed, he said he could see a flock of geese flying through the sky. Another patient who saw only darkness before the operation can now see light and shadows. "Someone came along and developed this little thing to put in your eye, and suddenly I can see more light," he said, celebrating his improved sight. "None of us had expectations that we'd be able to see someone's face or read a book. 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