HELP ASP

A chemical reaction happens when one substances changes into another substance.

True or False

Answers

Answer 1

True becuase the substance changed into another substance which is a example of a chemical reaction.


Related Questions

how do you make fried chicken im white and don't know how to season

Answers

Answer:

lol you use batter use flour salt pepper  thats what gives it the fried and crispy taste

Explanation:

Judge Joe is looking over a list of expert witnesses that must be summoned to court. Which one of the following actions would he take pretrial to ensure they appear? A. Issue an arrest warrant. B. Conduct a jury poll. C. Send out subpoenas. D. Interpret case law.

Answers

Your answer is c pls give me branliest

Calculate the volume which 1.00 mole of a gas occupies at STP.

Answers

Answer:

22.4 L

Explanation:

A gas at STP will possess the following;

Pressure (P) = 1 atm

Temperature (T) = 273K

General gas constant (R) = 0.0821 Latm/molK

Using the general gas law formula to calculate the volume a gas of 1 mol will contain;

PV = nRT

V = nRT/P

V = 1 × 0.0821 × 273 ÷ 1

V = 22.41/1

V = 22.4 litres

The primary role of ATP is to _______ by transferring a phosphate group to a molecule and forming ADP.

A
provide energy for cellular work

B)

produce heat energy

C)

reduce the activation energy of a reaction

D)

take energy from cellular work

Answers

Answer:

A) provide energy for cellular work

Explanation:

The Adenosine triphosphate (ATP) molecule is the nucleotide known in biochemistry as the "molecular currency" of intracellular energy transfer; that is, ATP is able to store and transport chemical energy within cells. ATP also plays an important role in the synthesis of nucleic acids.

ATP always GIVES ENERGY

Is this balanced ?CsH12 + 702 → 5 CO2 + 6H2O

Answers

Answer:

Nope

Explanation:

Answer: nope, it should be : C5H12 + 8O2 → 5CO2 + 6H2O

4 Al + 3 O₂ --> 2 Al2Ol₃ Given 6 moles of aluminum, how many grams of aluminum oxide will be produced?

Answers

Answer:

305.88 g

Explanation:

4 Al + 3 O₂ → 2 Al₂O₃

First, we convert 6 moles of aluminum (Al) into moles of aluminum oxide (Al₂O₃), using the stoichiometric coefficients:

6 mol Al * [tex]\frac{2molAl_2O_3}{4molAl}[/tex] = 3 mol Al₂O₃

Finally we convert 3 moles of aluminum oxide into grams, using its molar mass:

3 mol Al₂O₃ * 101.96 g/mol = 305.88 g

give an example of competition in an ecosystem

Answers

hbzjaj

Explanation:

competition for food

How many moles of steam are produced when 5.74 moles of octane (C8H18) react?

Answers

This is a combustion reaction, which always has the hydrocarbon and oxygen as reactants and then carbon dioxide and water (which is steam in this case) as products.

C8H18 + O2 —> CO2 + H2O

Balance your carbons first. You want to get 8 carbons on both sides.

C8H18 + O2 —> 8CO2 + H2O

Now balance your hydrogens. You want 18 hydrogens on both sides.

C8H18 + O2 —> 8CO2 + 9H2O

Now balance your oxygens. You have 2 on the left and 25 on the right. The O2 reactant needs a coefficient of 12.5 to balance this.

C8H18 + 12.5O2 —> 8CO2 + 9H2O

However, you can’t have decimals for coefficients in a reaction. So, multiply everything by 2.

2C8H18 + 25O2 —> 16CO2 + 18H2O

Now, use your mole ratio of 18 mol H2O for every 2 mol C8H18 to solve.

5.74 mol C8H18 • (18 mol H2O / 2 mol C8H18) = 51.7 mol H2O (steam)

_Al + _Fe(NO3)2 -->_Fe + __Al(NO3)3

Answers

4Al+6Fe(NO3)2= 6Fe+4Al(NO3)3

5. Keratin and collagen are examples of *
li​

Answers

Answer:

Structural proteins

Explanation:

Glad I could Help Pls Brainliest

true or false. a less reactive halogen will displace a more reactive halogen from an aqueous solution of its salt.​

Answers

Answer:

I think the answer is false

how do i make chrystals

Answers

Answer:

1. In the beaker, stir 1/2 cup of Epsom salts with 1/2 cup of very hot tap water for at least one minute. ...

2. Add a couple drops of food coloring if you want your crystals to be colored.

3. Put the beaker in the refrigerator.

4. Check on it in a few hours to see a beaker full of epsom salt crystals!

Explanation:

Which of the following masses is the greatest?

Answers

Answer:

4.2 gigagrams

Explanation:

kilo = 1,000

giga = 1,000,000,000

milli = .001

Select all of the answers that apply.
multiple selection answer
Surface currents are driven by _____.

salinity
density
wind
temperature
the moon

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Geography.

Surface currents in a ocean or a sea are driven by Winds.

Answer:

winds :)

Explanation:

what is change in science

Answers

Answer:

Scientific change is: "Any change in the scientific mosaic, i.e. a transition from one accepted theory to another or from one employed method to another. "

Explanation:

Calculate the change in heat (Q) that occurs when 38.68grams of steam at 304°C cools to liquid water at 197°C. (cp = 4.184 J/g°C)

Answers

Answer:

Change in heat (Q) = -1.7316 x 10⁴

Explanation:

Given:

Mass m = 38.68 g

Change in temperature Δt = (197-304) = -107°C

Specific heat C = 4.184 J/g°C

Find:

Change in heat (Q)

Computation:

Change in heat (Q) = (C)(m)(Δt)

Change in heat (Q) = (4.184)(38.68)(-107)

Change in heat (Q) = -1.7316 x 10⁴

the equation of 3times x is 38​

Answers

Answer is 38/3 or 12.67

3x=38

x=38/3

therefore answer is the one mentioned above

HELPPPP!!!
Which element has the greatest atomic size?

a) Francium
b) Hydrogen
c) Rubidium
d) Sodium

Answers

Answer:

A. Francium

Explanation:

I'm not for sure but I believe this is correct. Hope it helps:)

What type of reaction occurs when potassium iodide is combined with lead (II) nitrate?

A. single replacement
b. double replacement
c. synthesis
d. combustion

Answers

Answer:

double replacement occurs

please help! Question is on the bottom​

Answers

It’s extremely bad quality I really can’t read it

TRUE OR FALSE?

Solvents are the component in solutions with highest percent composition

Answers

Answer:

True

Explanation:

I think this is a helpful for you

HELP PLEASE ||Suppose you add water to a 6 g of sugar to make a solution with a concentration of 3 g/L. What is the total volume of the solution?

Answers

Answer:

2 L

Explanation:

Divide the mass by the concentration to find the volume.

(6 g)/(3g/L) = 2 L

According to the concept of solubility, in order to make solution of sugar the total volume of solution is 2 g/L.

What is solubility?

Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.

The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.Concept of solubility is not valid for chemical reactions which are irreversible. The dependency of solubility on various factors is due to interactions between the particles, molecule or ions.

In order to calculate total volume of solution divide mass/ concentration that is 6/3=2 g/L.

Thus, the total volume of the solution is 2 g/L.

Learn more about solubility,here:

https://brainly.com/question/29589228

#SPJ2

HELP PLEASE I BEG YOU

Answers

The answer is the option C
It is rusting (oxidizing) iron.

Number 2 plssssssssssssssssssssssssssssssss

Answers

Answer:

Its located on North America

Hockey is a sport in which players use hockey sticks to push a puck across smooth ice. At practice one day, three different-colored hockey pucks were sliding on the ice. The green hockey puck has less mass than the black and purple hockey pucks, which have the same mass. A player hit each hockey puck with a stick, but not from the same direction. Use the information in the diagram to answer.

Which puck(s) experienced the strongest force when hit? How do you know?

Answers

Answer:

The purple hockey puck; it takes a stronger force to slow down a more massive object than to speed it up.

Explanation:

Hope this helps! :) Plz mark as brainliest if u can!

What is the answer?

Answers

Answer:

Option A

Explanation:

The atomic number is the number of protons in the nucleus of an atom.

which image of earth is more recent?

Answers

Answer:

b

Explanation:

Answer:

2

Explanation:

its has more space now cause of The to contemplates

What is the pH of a buffer solution prepared by mixing 20.0 mL of 0.0800 molL−1NaOH with 20.0 mL of 0.130 molL−1 cacodylic acid?

Answers

Answer:

pH = 6.20

Explanation:

The pKa of cacodylic acid is 6.

To solve this question we must use Henderson-Hasselbalch equation:

pH = pKa +log [A⁻] / [HA]

Where pKa is the pKa of the weak acid = 6

And [] could be taken as the moles of A⁻ the conjugate base, and HA, the weak acid.

The moles of the NaOH added to the solution of the weak acid are = Moles A⁻

And moles HA = Initial moles HA - Moles NaOH added

Initial moles HA:

0.0200L * (0.130mol / L) = 0.00260 moles

Moles NaOH:

0.0200L * (0.0800mol / L) = 0.00160 moles = [A⁻]

Moles HA =

0.00260 moles - 0.00160 moles = 0.00100 moles = [HA]

pH = 6 +log [0.00160 moles] / [0.00100 moles]

pH = 6.20

The pH of the resulting solution is 1.6.

Let cacodylic acid be HA, mixing cacodylic acid and NaOH, the following occurs;

HA(aq) + NaOH(aq) ------> NaA(aq) + H2O(l)

Number of moles of NaOH = 0.0800 molL−1 × 20.0/1000 = 0.0016 moles

Number of moles of HA = 20.0/1000  × 0.130 = 0.0026 moles

We can see that the HA is in excess, Number of moles of excess acid =

0.0026 - 0.0016 = 0.001 moles

Total volume of solution = 20.0 mL + 20.0 mL = 40 mL or 0.004 L

Molarity of excess acid =  0.001 moles/0.004 L = 0.025 M

pH = -log[H^+]

pH = -log[0.025 M]

pH = 1.6

Learn more: https://brainly.com/question/2510654


A swimmer is moving at a speed of 2.0 meters/second. How long will it take for the swimmer to go 100 meters?

Answers

50 seconds because 100 divided by to is 50 and if she’s moving 2 meters a second it would take 50 seconds to go 100 meters p.s pls give me branliest

Name two chemical used to disinfect water

Answers

Answer:

chlorine and I think maybe sulphur. but check the internet

Answer:

chlorine I think so . sorry if it ain't the right answer

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