Sodium chloride can be used to preserve meat because​

Answers

Answer 1

Answer:

Salt is effective as a preservative because it reduces the water activity of foods. .


Related Questions

. If you apply heat to the copper bar, its density will

Answers

Answer:

Decrease

Explanation:

Density is defined as the mass per unit volume. Density is highly influenced by temperature.

The density of metals and copper is inversely proportional to the temperature, it means density of copper decreases with an increase in temperature or when heated. This is so because when the copper is heated, the copper atoms start vibrating faster that allows the collision of atoms with each other faster and occupying more volume than before. As the copper atoms occupy more volume, the density of copper decreases.

Hence, the correct answer is "On applying heat the density of copper decreases".

Mass can be changed into energy in a ____ reaction
A)Chemical
B)Nuclear

Answers

b! is the answer please give me a thanks hehehehheheehhehehe

A sample of ammonia gas has a volume of 3213 mL at 11°C and a pressure of 822 torr. What will the volume of the gas be in liters if the
moles of gas and the temperature do not change but the pressure changes to 2.33 atm?

Answers

Answer:

We are given:

v1 = 3.2 L                   v2 = x L

p1 = 822 torr OR 1.08 atm        p2 = 2.33 atm

t1 = t2 = 284 k

From the Ideal gas equation:

PV = nRT

Since the number of moles (n), universal gas constant (R) and Temperature (T) are constant

PV = k      (where k is a constant)

it can also be written as:

P1V1 = k --------------------------(1)

Similarly,

P2V2 = k (where k is the same constant as before)----------(2)

Solving for V2:

From (1) and (2):

P1V1 = P2V2

Replacing the variables

1.08 * 3.2 = 2.33 * x

x = (1.08 * 3.2)/2.33

x = 1.5 L (approx)

Therefore, the final volume of the solution will be 1.5L

What factor is mostly responsible for the form of matter?
time
temperature
pressure
weather

Answers

Temperature is mostly responsible for the form of matter. For instance, when raising the temperature you're adding energy. This energy gives the individual molecules and atoms the ability to overcome the forces that hold them together. This can be seen when a solid turns into a liquid or a liquid turns into a gas. However, when you're lowering the temperature you're removing energy. The lack of energy results in less movement from the atoms. Gases condense into liquid because the atoms don't have enough energy to stay away from each other. Liquids solidify because the atoms don't have enough energy to slide past each other and they get stuck in place. So in conclusion, temperature determines how how much energy atoms have that allow them to move at different speeds which determines the state of matter.

Phosphorus and molecular oxygen combine to form diphosphorus pentoxide.
Write
a) the word equation
b) the skeletal equation
c) the reactant(s)
d) the product(s)
e) what type of reaction is this?

Answers

Answer:

b

Explanation:

because I really want to talk to you about it when I get home

What else heats the Earth when Permafrost melts?

Answers

Answer:

As those microbes thrive, they will release large amounts of methane, another climate-warming greenhouse gas. ... By the year 2100, they estimated, thawing permafrost could release enough carbon dioxide and methane to raise the average global temperature by 0.13 to 0.27 degree C (0.23 to 0.49 degree F). pls mark me brainlest :(

Explanation:

Which is the larger atom S or K

Answers

Answer:

I'm pretty sure k

Explanation:

I'm not for sure I'm trying to help

Answer:

Potassium

Explanation:

Atomic size decreases across a Period, from left to right as we face the Table, and INCREASES down a Group, a column of the Periodic Table.

Which organism on the geologic time scale are now extict

Answers

Answer:The Ordovician and Cambrian Periods are referred to as the "age of invertebrates", with trilobites abundant. In this period, brachiopods became more abundant that the trilobites, but all but one species of them are extinct today.

Explanation:

What gets heavier in an electrochemical cell?
O A. The cathode
B. Negative ions
O C. The salt bridge
O D. The anode

Answers

Answer:

A. the cathode

Explanation:

Answer:

A. The cathode

Explanation:

a p e x

What is epithelial tissue characterized by?

closely packed cells

sarcomeres

many cell junctions

an extracellular matrix

Answers

Answer:

closely packed cells

many cell junctions

Explanation:

Answer:

A,B

Explanation:

EDGE2021

what is vascuoles ? ​

Answers

Answer:

Vacuoles are essentially enclosed compartments which are filled with water containing inorganic and organic molecules including enzymes in solution, though in certain cases they may contain solids which have been engulfed.

Explanation: i hoped this helped :)

Answer:

vacuole

Explanation:

a space within a cell that is empty of cytoplasm

vacuole is a membrane-bound

A pizza is an example of a heterogeneous mixture. Explain why it is classified as such?​

Answers

Answer:

Hi!

So, a homogeneous mixture is when the parts that make up the mixture are all mixed in perfectly evenly, so they're only appearing as one uniform substance.

In a heterogeneous mixture, the pieces are not evenly mixed. A pizza has separate parts, like the crust and toppings, so it's a heterogeneous mixture.    

7. The image shows the effects of exposing the plants to different color of
lights. The size of the plant was measured and the number of leaves were
counted if they are alive or dead. Size of plants and number of leaves are
Size of Plant
Number of Leaves
Living or Dead?
science or
What’s the answer?

Answers

Answer:

An apple, potato, and onion all taste the same if you eat them with your nose plugged

Explanation:

what is the density of if mass equals 4.98 volume is 5

Answers

Answer:

4.98/5 = 0.996 (don't forget to add your units)

Explanation:

Density= Mass/Volume

If your mass is 4.98_ (units of measurement are missing ) and your volume is 5 (units of measurement are missing) You plug the numbers into the equation:

4.98/5= 0.996 (don't forget to add your units)  

If you are given 22.990 g of sodium and 12.011 g of carbon, which sample do you expect to have more particles?

Answers

Answer:

they are expected to have the same particles because their masses are the same with there molar mass

What is the charge on an electron? ​

Answers

Answer:

Electrons have a negative charge

hope this was helpful (plz vote brainliest, I would appreciate it!) :)


1. As an electron in an atom moves from a higher energy state to a lower energy state, the atom
(A) becomes a negative ion
(C) releases energy
(B) becomes a positive ion
(D) absorbs energy

Answers

Answer:

(C) releases energy

Explanation:

From Bohr's model of the atom, we can understand the energy transitions involved when an electron moves from one energy level to another.

An electron in an energy level has a definite amount of energy associated with it at that level. When electrons change state, they must absorb or emit the exact amount of energy which will bring them from initial to final states. When the electron is excited, it moves from the ground state to an excited state, it must must absorb energy. On returning from an excited state, energy is emitted.

(C) releases energy

From Bohr's model of the atom:

We can understand the energy transitions involved when an electron moves from one energy level to another.

An electron in an energy level has a definite amount of energy associated with it at that level. When electrons change state, they must absorb or emit the exact amount of energy which will bring them from initial to final states. When the electron is excited, it moves from the ground state to an excited state, it must must absorb energy. On returning from an excited state, energy is released or emitted.

Therefore, option C is correct.

Learn more:

brainly.com/question/13822373

Order these chemical species by increasing of an aqueous solution of each. That is, imagine making an solution of each species. Select next to the species that makes the solution with the lowest . Select next to the species that makes the solution with the next higher , and so on. Notice that some of the rankings have been filled in for you already. Also notice that water is on the list. For that particular case, just compare the of pure water to the of the other solutions.

Species Relative PH of 0.1M aqueous solution
HCOOH
CIO2^-
HCOO^-
H2O
H3PO4
H2PO4
H2PO4^-
H3O^-
HClO2

Answers

Answer:

H3O^+ < HClO2 < H3PO4< HCOOH < H2PO4^-<CIO2^-<H2O< HCOO^-

Explanation:

The pH of a solution refers to the negative logarithm of it's hydrogen ion concentration. Generally, the hydrogen ion concentration of an acid is always greater than that of its conjugate base. Hence, the conjugate acid always has a lower pH than the conjugate base.

This can be seen in the species, H3O^+ and H2O, HClO2 and ClO2^- etc.

D 14 3
N
7
What is the number of protons, neutrons, and electrons?

Answers

Answer:

14

Explanation:

For example, silicon has 14 protons and 14 neutrons. Its atomic number is 14 and its atomic mass is 28. The most common isotope of uranium has 92 protons and 146 neutrons. Its atomic number is 92 and its atomic mass is 238 (92 + 146).

2. Using the following data, calculate the average atomic mass of magnesium (give your answer to the nearest
.01 ) : Show all work!
Isotope: Mg Percent abundance: 78.70%
24
Isotope: 'Mg Percent abundance: 10.13%
25
Isotope:
Mg Percent abundance: 11.17%
26

Answers

Answer:

24.32

Explanation:

From the question given above, the following data were obtained:

Isotope A:

Mass of A = 24

Abundance (A%) = 78.70%

Isotope B

Mass of B = 25

Abundance (B%) = 10.13%

Isotope C:

Mass of C = 26

Abundance (C%) = 11.17%

Average atomic mass of Mg =..?

The average atomic mass of Mg can be obtained as illustrated below:

Average atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]

Average atomic mass = [(24 × 78.70)/100] + [(25 × 10.13)/100] + [(26 × 11.17)/100]

= 18.888 + 2.5325 + 2.9042

= 24.3247 ≈ 24.32

Therefore, the average atomic mass of magnesium (Mg) is 24.32

Freezing point
Where would you place this property in the Venn diagram?

Answers

For the Venn diagram, freezing water should be in the physical category (A)
I would pick A :) :)

can someone help me im doing chemistry right now and I have a question which I have no idea how to solve and I need to show work it it needs to be shown in scientific notation

(7.6x10^-1)+(2.0x10^-2)

Answers

The answer should be 0.78

Which of these are trends of elements as you go down a group?
a.. The atomic number increases.
b ...The number of electrons in the outermost shell increases.
c ...The number of filled electron shells increases.
d...The mass and size of the atoms increase
e...The elements change from being metallic to non-metallic.

Answers

Answer:

c. the number of filled electrons shells increases

Answer:

the answer is c

Calculate mass of an object if its density is 22.6 g/cm3 and it occupies volume of 5 cm3.

plz answer quickly if you know the answer... i will mark you brainliest! :)

Answers

Answer:

okay so I'm confused for the 5 cm3 but all you have to do is multiply those 2 numbers

Answer:

it is 113g

Explanation:

the formula you have to use here is mass=density*volume

sooo I multiplied it for u and gave the answer

PWEASE REVIEW ME AND ME MATES TEEF

Answers

So the first one is yellow and the other one is white


The human eye cannot see anything less than 40 micrometers in size. What is this length in meters?

Answers

Answer:

4e-5 is the length in meters

Have a nice day! :)


The human eye cannot see anything less than 40 micrometers in size. What is this length in meters?

Answers

Answer:

0.00004

Explanation:

i dont have one its just i know

What type of reaction heats the water to generate steam in a nuclear power plant

Answers

Fission! Nuclear power plants heat water to generate steam. The steam is used to spin big turbines that create electricity. Nuclear power plants use heat produced during nuclear fission to heat water which becomes steam. In nuclear fission, atoms are split apart to form smaller atoms, releasing energy. Hope this helps!

Which element in period 5 has the largest atomic radil

Answers

Answer:

francium is the answer

Explanation:

It should be noted that the element in period 5 has the largest atomic radius is Francium.

What is an atomic radius?

It should be noted that an atomic radius simply means the measure of the size of the atom from the center of the nucleus.

In this case, the element in period 5 has the largest atomic radius is Francium while Helium has the smallest radius.

Learn more about atomic radius on:

https://brainly.com/question/15255548

HELP PLEASE
Describe and illustrate how liquids are different then the other states of matter.

Answers

Explanation:

There are four natural states of matter: Solids, liquids, gases and plasma. ... Solids also have a high density, meaning that the particles are tightly packed together. Liquids. In a liquid, the particles are more loosely packed than in a solid and are able to flow around each other, giving the liquid an indefinite shape.

Other Questions
According to the authors which was the most direct of the dred scoot decision??? Plz wlep Who is the first female president of Africa? What was the purpose to Thomas Paines Common Sense and what Foundational American document did it help inspire? Which statement is true of the electric field at a distance from the source charge?A it is independent of the source charge B It is directly proportional to the source chargeC it is inversely proportional to the source charge D it is directly proportional to the distance I will brainly And 5 star rate I WILL GIVE BRAINLIEST!!!!!Which of the following was NOT a result of the plague? A. An abundance of food B. A population decrease C. A drop in labor prices D. Increased attacks on Jews Given: In the figure, B is the midpoint of AC and AD = EC. Prove: DB = BE.Match each statement to its corresponding reason in the flow diagram. Drag the items on the left to the correctlocation on the right. Large wind turbines with blade span diameters of over 100 m are available for electric power generation. Consider a wind turbine with a blade span diameter of 100 m installed at a site subjected to steady winds at 8 m/s. Taking the overall efficiency of the wind turbine to be 32 percent and the air density to be 1.25 kg/m3 , determine the electric power generated by this wind turbine. Also, assuming steady winds of 8 m/s during a 24-hour period, determine the amount of electric energy and the revenue generated per day for a unit price of $0.09/kWh for electricity QUESTION : John travels a lot and he needs to access his documents and services on the go. Which of these technologies allows his to access documents and software while on the move? !!MUTI ANSWER QUESTION BTW!! A.cloud computing B.grid computing C.mobile computing D.green computing E.virtualization What type of result does the MATCH function, when used on its own, return? At which latitude is Antarcticapicture shown above What does the directors concept help all members of the production staff to do everyday Which of the following statements best describes the general process of how laws are made in the United States? PLEASE HELP!! 20 POINTSA) The chapter revolves around the further development of the idea of republicanism in American society during the early nineteenth century. Explain the origins of this belief and how this idea influenced or revealed itself in TWO of the following areas during this period:The economySocial structuresReligionB) Explain how republicanism in one of the above areas caused significant challenges to traditional beliefs or practices, or represented a major change. $4.30 makeup; 40% discount When was JavaScript founded?Write in this format:mm/yy What were the main political factors that caused the power of Rome to slip away? what is foot as a irregular a nouns Angles of a triangle are in the ratio 2:4:3the smallest angle of the triangle is Duncan has 13 1/3 cups of sand. He divides the sand equally into 4 containers