I need help help me out with this plz

I Need Help Help Me Out With This Plz

Answers

Answer 1

Answer:

D good luck on your test

Explanation:


Related Questions

What is the balanced equation for the reaction of a solution of sodium sulfate is mixed with strontium chloride?

Answers

Answer:

NaSO⁴(ads) ,ganadicate

calculate the mass of 0.8 moles of Fe(NO3)3 (H2O)9

Answers

Answer:

Molar mass of (Fe(NO3)3)(H2O)9 is 403.9972 g/mole

Explanation:

the formula to find the mass of moles

Worked Example: molar mass = mass ÷ moles (M=m/n) Calculate the molar mass of a pure substance if 1.75 moles of the substance has a mass of 29.79 g.

i think it help you

what they said i guess

Hydrogen and oxygen combining to form water is an example of a physical change.

Answers

In a physical change, the makeup of matter is changed. Evaporation occurs when liquid water changes into a gas. ... Combining hydrogen and oxygen to make water is a physical change.

Oxygen has 6 valence electrons. how many hydrogen atoms (who have 1 valence electrons) can bond with it? remember the octet rule.

Answers

Answer:

two hydrogen can bonded with oxygen to form H2O

4. Calculate the total heat required to convert 23.6 g of ice at -27 ºC to steam at 121 ºC. Hint: Calculation involves more than 1 step.

5.How much heat, in kJ, is needed to convert 12.8 g of ice at -18 ºC to steam at 118 ºC? Hint: Calculation involves more than 1 step.

Answers

Answer:

filedownload.ashx  heres a pdf

Explanation:

How much heat do you need to raise the temperature of 300 g of ethanol from 0°C to 20°C?​

Answers

Answer:

14.6

Explanation:

I just took the test

The amount of heat to raise the temperature is 14.7J.

How do you calculate the heat needed to raise the temperature?

The specific heat capacity of a substance is the quantity of heat needed to raise the temperature of a unit quantity of the substance by one degree. Calling the amount of heat added Q, which will cause a change in temperature ∆T to a weight of substance W, at a specific heat of material Cp, then Q = w x Cp x ∆T

By applying the formula, we get

Q = w x Cp x ∆T

Q = 300 * 2.46 * 20/1000

Q = 14.760J

What is heat?

Heat is energy that is transferred from one body to another as the result of a difference in temperature.

Learn more about the heat here: brainly.com/question/13439286

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How does increasing temperature affects reaction rate?

Answers

Answer: It increases the reaction rate.

Step-by-step explanation:

The particles gain kinetic energy.

Explain the process of fermentation.

Answers

Answer:

Fermentation, chemical process by which molecules such as glucose are broken down anaerobically. More broadly, fermentation is the foaming that occurs during the manufacture of wine and beer, a process at least 10,000 years old. The frothing results from the evolution of carbon dioxide gas, though this was not recognized until the 17th century.

Explanation:

looked it up-

Answer:

like babies or milk and cheese?

Explanation:

PLEASE HELP. I WILL GIVE BRAILIEST. I DON'T HAVE TIME PLEASE Which type of reaction does this diagram represent?

C H 3 single bonded to C, which is single bonded above to H and double bonded to O, plus H C N right arrow C H 3 single bonded to C, which is bonded above to H, to the right to O H, and below to C N.

addition
condensation
elimination
substitution

Answers

Answer:

addition

Explanation:

Answer:

Explanation:

Edge 2022

If there were 11.25 moles of solute in a 6.0M solution, what volume would it have?

Answers

Answer:

1.875 dm^3

Explanation:

M = moles of solute ÷ volume of solution

M =11.25 x 6

  = 1.875 dm^3

2L is the correct answer .

HOW TO CALCULATE ??

Given : moles of solute(n) = 11.25

                      Molarity (M)            = 6

To Find : Volume of the solution (v) = ?Key concept :         [tex]M=\frac{n}{V(inL)}[/tex]

     On puting values and solving we get , V = 1.875 L ≈ 2L

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Agente infeccioso procariota cuyo ADN está disperso en el citoplasma"
1 punto
virus
bacteria
hongo
protozoo
helminto

Answers

una célula procariota o procarionte es un organismo unicelular sin núcleo cuyo material genético se encuentra disperso en el citoplasma reunido en una zona denominada nucleoide. por el contrario las células que sí tienen un núcleo diferenciado del citoplasma se llaman eucariotas es decir aquellas en las que su ADN se encuentra dentro de un compartimento separado del resto de la célula.

What happens to the amount of electrical energy when there are no clouds?

Answers

Answer:

It slows down

Explanation:

Which of the following statements are true about elements and compounds?

A. Elements are made up of compounds.

B. Compounds are made up of elements

C. Elements can be shown with chemical symbols, but compounds cannot.

D. Elements and compounds are the same thing.

Answers

The answer is d hope this helps

Answer:

the answer is b

hope this helps :)

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How many moles of hypomanganous acid. H3 MnO4, are contained in 22.912 g?

Answers

Answer:

0.188mol

Explanation:

Using the formula;

mole = mass/molar mass

Molar mass of hypomanganous acid. (H3MnO4) = 1(3) + 55 + 16(4)

= 3 + 55 + 64

= 122g/mol

According to this question, there are 22.912g of H3MnO4

mole = 22.912g ÷ 122g/mol

mole = 0.188mol

how many moles of HCI will react with 18.13g of SrO

Answers

Answer:

Explanation:

The balanced chemical equation between

SrO + 2HCl → H2O + SrCl2

How many joules of heat is needed to heat 68.00 grams of aluminum foil from
55.00 °C to 93.00 °C if aluminum has a specific heat of 0.90 J/g °C?

Answers

Answer:

2,325.6

Explanation:

You use the formula

Q =mco

M =mass =68

C=0.9

O=temperature increases =93-55=38

Then multiple all this 3

Q=68*0.9*38

The number of joules of heat that is needed to heat 68.00 grams of aluminum foil is 2,325.6.

What is specific heat?

The amount of energy needed to raise the temperature of one gram of a substance by one degree Celsius.

By the formula of heat

Q = mct

The mass of aluminum is 68.00

the difference in temperature is 93.00 °C - 55.00 °C = 38.00

The specific heat is 0.90 J/g

Putting the values in the equation

[tex]Q = mct\\\\Q = 68.00 \times 0.90 \times 38.00 = 2325.6[/tex]

Thus, the joules of heat is 2325.6 J.

Learn more about specific heat

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Which tool was most likely used in a procedure if the lab report shows that 300 mL of water was used?
O a volumetric flask
O a thermometer
a pipette
O a graduated cylinder

Answers

b) a thermometer
or
a graduated cylinder

What two forces act in the nucleus to create a 'nuclear tug-of-war'?
a.
Covalent bond, ionic bond
c.
Van der waals force, dipole
b.
Electrostatic repulsion, strong nuclear force
d.
All of the above

Answers

Answer:

Electrostatic repulsion, strong nuclear force

Explanation:

The nucleus consists of protons and neutrons. protons are positively charged while neutrons possess no charge.

Since protons are positively charged, they repel each other strongly (like charges repel). This strong repulsion of like charges makes the nucleus somewhat unstable leading to spontaneous fission of heavy nuclei.

However, an opposing force called nuclear attractive force tends to hold the nucleons together. This attraction occurs when two nucleons are bonded by a particle called a π meson.

Hence, the two forces that act in the nucleus to create a  'nuclear tug-of-war' are electrostatic repulsion and a strong nuclear force.

Help help help I will give brainliest

Answers

Answer:

its b alkyne

Explanation:

brinliest po plsss

Answer:

Alkyne so its b

what type of reaction takes place when bromine reacts with iron iodide

Answers

Answer:

If you pass bromine vapour over hot iron, a similar but slightly less vigorous reaction happens, this time producing iron(III) bromide. Anhydrous iron(III) bromide is usually produced as a reddish-brown solid. Again the iron has been oxidised to an oxidation state of +3.

Explanation:

The pH of an unknown strong acid is 2. What is the hydronium ion concentration?

Answers

Answer:

i believe its 12

Explanation:

The hydronium ion concentration can be found from the pH by the reverse of the mathematical operation employed to find the pH.

The knowledge produced by science builds on old ideas and is constantly changing.

State whether you agree or disagree with this statement considering what you have learned about the scientific process.

Answers

yes it is always changing, as time moves on new technological advancements are made. This makes it possible for new ideas to be created. For example the depiction of an atom went through many stages throughout the years in order to find out our current final version. New scientists and new ideas can add on to older ones, making explanations that make more scientific sense.

A jar is filled to the top with water, and a piece of cardboard is slid over the opening so that there is only water in the . If the jar is now turned over, will the cardboard fall off? What will happen if there is any air in the jar?

Answers

Answer:

it will all fall unless these is air

Explanation:

Answer:

If you do it carefully enough, a small amount of water will pour out of the glass — that's supposed to happen. But try not to let any air bubbles get into the glass. Finally, slowly remove the hand holding the cardboard in place.

What is the pressure?

Answers

Here is the answer = 903,03

⚠️⚠️What is kinetic energy ? ⚠️⚠️

Energy of work
Energy of movement
Energy of gravity
Energy of power

⚠️⚠️PLEASE HELP IM BEING TIMED⚠️⚠️⚠️

Answers

Answer:

Energy of Movement.

Explanation:

Have a great day!

What is the function of these organelles?

Answers

Answer:

Endoplasmic reticulum, Golgi apparatus, Nucleus, Storage Organelles, and Energy - Producing Organelles.

Explanation:

Hope its right! Mark me as Brainliest if it it right ;)!

what happens during a physical change?
A. New substances are formed
B. The identity of the substance is changed
C. A chemical reaction occurs
D. A substance may look different, but has not changed its identity.

Answers

Answer:

D

Explanation:

Hope this helped!

the answer is D because physical changes don’t change the chemical composition

2. Calculate the boiling point of a 1.7 m ethylene glycol solution.

Answers

Boiling pon t 100.042o0C

Which processes involve nuclear changes?
A. fission and fusion
B. erosion and weathering
C. combustion and oxidation
D. evaporation and condensation

Answers

Answer:

Nuclear processes, including fusion, fission, and radioactive decays of unstable nuclei, involve changes in nuclear binding energies.

Explanation:

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what are radioactive tracers used for

Answers

Answer:

Radioactive tracers are widely used to diagnose industrial reactors, for instance by measuring the flow rate of liquids, gases and solids.

Explanation:

Radioactive tracers are widely used to diagnose industrial reactors, for instance by measuring the flow rate of liquids, gases and solids. A radioactive tracer is a chemical compound in which one or more atoms have been replaced by a radioisotope.

heres the link for more information

https://www.iaea.org/topics/radiotracers#:~:text=Radioactive%20tracers%20are%20widely%20used,been%20replaced%20by%20a%20radioisotope

.

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