Which of the following is a property of water

Answer:

Investigating a data breach

Explanation:

A data breach usually involves data exfiltration over a computer network. the other options involve data being stored on a device locally which isn't volatile data like text messages, photos or rearranging data in defragmentation all of which does not require a network.

Answer:

Its Body Temperature, Blood glucose, and Blood pH

Explanation:

I checked in Body systems and Homeostasis in Florida.org :>

Answer:

Leavening agent is a material that causes doughs and batters to expand by releasing gases from inside the mixture, resulting in porous baked goods. Air, steam, yeast, baking powder, and baking soda are examples of such agents.

Explanation:

Answer:

2.114 atm

Explanation:

Since it is just pressure and volume, use Boyle's Law

P1V1 = P2V2

Then plug in numbers

(1 atm)(1 L) = P2(.473 L)

P2 = 2.114 atm

Answer:

The correct answer is "[tex]1.21\times 10^5 \ Pa[/tex]".

Explanation:

The given values are:

Number of moles,

n = 2.5 moles

Volume,

V = 45 liters

Temperature,

T = 261 K

As we know,

⇒  [tex]PV=nRT[/tex]

or,

⇒  [tex]P=\frac{nRT}{V}[/tex]

On substituting the values, we get

⇒      [tex]=\frac{2.5\times 0.0821\times 261}{45}[/tex]

⇒      [tex]=\frac{53.57}{45}[/tex]

⇒      [tex]=1.19 \ atm[/tex]

On converting it in Pa, we get

⇒      [tex]=1.19\times 1.01325\times 10^5[/tex]

⇒      [tex]=1.21\times 10^5 \ Pa[/tex]

Answer:

D 1.45 M

Explanation:

Answer:

54.4g

Explanation:

Let's first take account of what we have and what we're looking for.

Q = heat energy (Joules, J)= 490 J

m = mass of a substance= ??

c = specific heat (units J/kg∙K)= 0.50 J/g°C

∆T = change in temperature (Kelvins, K)= Final temperature - initial temperature -> (0C - (-18C))

We can use Q = mc∆T to determine the mass, we'll rearrange the formula to solve for mass, so it'll be: m=Q/c∆T. Let's plug it all in.

m= 490J / (0.50 J/g°C x ((0C - (-18C)))

m= 490J / (0.50 J/g°C x (0 + 18))

m=  490J / (0.50 J/g°C x 18)

m= 490J / 9 J/g

m= 54.4g of glass

Answer:

Endothermic

Explanation:

An endothermic reaction is one in which energy is absorbed while an exothermic reaction is one in which energy is given out(evolved).

If we look at the reaction as written; 3C(graphite) + 3H2(g) + 88kcal -------> C3H8(g), we will notice that;

i) 88kcal of energy had to be absorbed for the reaction to occur

ii) The enthalpy change for the reaction is positive.

Since energy must be taken in to drive the forward reaction, then the reaction is endothermic as written.

Answer:

You should be posting this question under the biology tab, but here's the answer nonetheless.

a. 25% (if the woman is Ce)

c. 0% (if the woman isn't Ce)

Answer:

-217 kJ

Explanation:

ΔH =  reactant energy - product energy

ΔH = [(C-H) × 2 + (C≡C)] + [2 × H-I] - [(I-C) × 2 + (C-H) × 4 + (C-C)]

ΔH = [ (413 × 2 ) + 839 + 2(299)]  - [(240 × 2) + (413 × 4) + 348]

ΔH = [826 +839 + 598] -  [ 480 +1652 + 348]

∴ ΔH = -217

Answer:

Amphoteric oxide is an oxide that reacts with both acids and bases. In other words, it possesses both acidic and basic properties. For example both zinc and aluminium are metals but their oxides, ZnO and Al2O3 are amphoteric oxides as they react with both acids and bases.

Explanation:

Answer:

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

Since we're finding the new pressure

[tex]P_2 = \frac{P_1V_1}{V_2} \\[/tex]

We have

[tex]P_2 = \frac{0.5 \times 150}{75} = \frac{75}{75} = 1 \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

607.9616 grams

Explanation:

Hope this helped!!

Answer:

1540.8 Joules of energy is required to bring a 30 gram crayon from room temperature, 25 degrees C, to its melting point 49 degrees C

Explanation:

Crayon is paraffin wax. The specific heat of paraffin wax is 2.14 J/g°C

As we know

[tex]Q = m*c *\Delta T[/tex]

Where

[tex]\Delta T[/tex] is the change in temperature [tex]T_2- T_1[/tex]

m is the mass of the object

c is the specific heat in J/g°C

Substituting the given values, we get -  

[tex]Q = 30 * 2.14 *(49-25)\\Q = 1540.8[/tex]    Joules

1540.8 Joules of energy is required to bring a 30 gram crayon from room temperature, 25 degrees C, to its melting point 49 degrees C

Answer:

hi

Explanation:

John will travel to Russia next week

hope it helps

have a nice day

Answer:

Your answer will be..

John will travel to Russia next week.

Explanation:

He will travel NEXT week so we need to say that he will travel next week.

This may help:

Past tense:  We use -ed because that shows the we already did or finished it. EX: We traveled to Russia over the Spring break

Current Tense:  You will use -ing to show that you are traveling in the current time. EX:We are traveling to Russia.

Future tense:  You might use -ing or keep it the root word. EX: We will be traveling to Russia next week.

We will travel next week.

Hope it helped! Please mark me brainliest! I love helping and I spend a lot of time explaing the answers. Thanks!

~King Sulay~

Answer:

Atoms always have an equal number of protons and electrons, and the number of protons and neutrons is usually the same as well.

Explanation:

Answer:

5.83 M

Explanation:

3.5 M * 125.0 ml  =  M₂ * 75.0ml

437.5 M.ml = M₂ * 75.0 ml

M₂ = 437.5 M.ml / 75.0 ml

M₂ = 5.83 M

Explanation:

uranium with atomic number of 92 and mass number of 236 decomposes to give helium with atomic number of 2 and mass number of 4 and thorium with atomic number of 90 and mass number of 232

Answer:

A simple test for the prescence of hydrogen gas is to light a splint and put it in the smoke present. If it makes a squeaky pop sound, then hydrogen gas is present. The hydrogen gas produced is combustible, and will therefore burn when it reacts with oxygen gas

Answer:

squeky pop test, if u put a lit splint into a test tube and pops then hydrogen is present

Explanation:

Answer:

Only number of electrons of Chlorine and argon are going to be same remaining things like mass,reactivity,ionic radii, and so on will be different so if a chlorine gains a electron we can't call it argon!! chlorine is an diatomic gas, argon exist as monoatomic, chlorine can loose that electron and form bond with another cation in order to remove the charge density,, but argon is stable itself!

A chlorine atom obtains an electron, we cannot call it argon because only the amount of electrons between argon and chlorine will be the same; all other characteristics, such as mass, reactivity, ionic radii, and so forth, would differ.

The smallest unit of matter that may be divided without ejecting electrically charged particles is called an atom.

It can also be defined as the essential composition of an element, which cannot be altered chemically.

Atoms contains three types of particles.

Argon and chlorine are different because chlorine is a diatomic gas, whereas argon only exists as a monoatomic gas. Chlorine can bind with another cation to eliminate the charge density, whereas argon is stable all by itself.

Thus, a chlorine atom obtains an electron, we cannot call it argon because only the amount of electrons between argon and chlorine will be the same; all other characteristics, such as mass, reactivity, ionic radii, and so forth, would differ.

To learn more about atoms, refer to link below:

https://brainly.com/question/1566330

#SPJ5

2.85 grams

4.28x10^2 atoms (40.08 grams of Ca/ 6.02x10^23)

Answer:

(9.03x10^-14)x(8.455x10^20)=7.634865x10^7

(5.2x10^11)/(2.10x10^-4)=2.476190x10^15

(7.67x10^12)x(3.8x10^15)=29146000000000000000000000000

(9.237x10^20)/(4.5x10^-6)=2.0526x10^26

Explanation:

Answer:

1. D

2. C

Explanation:

Asexual reproduction has one set of genes with no combination and one person.

Sexual reproduction is with two people that provide the offspring with two different sets of genes that can be mixed creating diversity.

Answer:

inversely proportional

Explanation:

Answer:

B

Explanation:

Figure 1 - Charles Richter studying a seismogram. There are a number of ways to measure the magnitude of an earthquake. The first widely-used method, the Richter scale, was developed by Charles F. Richter in 1934.

Answer:

Fast, Direction, Time

Explanation: