Please help not to fail chemistry

Please Help Not To Fail Chemistry

Answers

Answer 1

Answer:

I think the heat on the surface or the fire under the dish cost evaporation coz when the water got heat tge water evaporate or go to the upper part of dish and cool down then back to the bottom.

Explanation:

Plss correct me if im wrong


Related Questions

What do u mean by electronic configuration? What are basic requirements while writing electronic configuration of an element (atom) ?

Answers

Yes that is right I look it up thanks for the points

The basic requirement while writing the electronic configuration of an element (atom) is its atomic number.

Explanation:

The electronic configuration of an element is the distribution of its electrons in different energy levels around the atomic nucleus.It only requires an atomic number of an element to write its electronic configuration.The atomic number is equal to the number of protons in an atom and that is equal to the number of electrons.And the filling of electrons is done according to the Aufbau principle, the electrons will be first filled in the atomic orbitals with lower orbital energy before filling the atomic orbital with higher energy.The sequence of the atomic orbitals from lower energy to higher energy is:

    [tex]1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d...[/tex]

For example:

  The atomic number of gallium is 31, its electronic configuration will be:

   [tex][Ga]=1s^2 2s^2 2p^63s^2 3p^6 4s^2 3d^{10} 4p^1[/tex]

Learn more about an electronic configuration of an atom here:

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Which is an example of a medicine that is made up of synthetic materials?
Fish Oil
Aspirin
Aloe Vera
Fresh water

Answers

Answer: Aspirin

Explanation:

What is the mass, in amu, of an atom with one proton and two neutrons?

Answers

mass of proton mp=1.672621898e-27 kg and 1 amu=1.66053904e-27kg so it’s just divition (1.672621898e-27 / 1.66053904e-27) =1.007276 amu

Answer:

hi

Explanation:

hi

what phase of matter changes volume when moved from one container to another ?

Answers

Answer:

gas

Explanation:

Gas

Explanation:

The volume of gas varies inversely with the pressure, when temperature is kept constant.

If the amount of gas in a container is increased, the volume increases. If the amount of gas in a container is decreased, the volume decreases.

Which of the following is an
example of thermal energy?
A. turning on a lamp so you can read
B. rubbing your hands together to get warm
C. kicking a ball

Answers

Answer:

B. rubbing your hands together to get warm,

Explanation:

Rubbing your hands together warms them by converting work into thermal energy.

Hope it helps ;)

Answer:

I think its A

Explanation:

Because a lamp has a lightbulb and it produces wasted heat and is thermal energy

If I had 50 graham cracker squares, 15 marshmallows, and 100 little
chocolate pieces, how many total s'mores could I make before I ran out of
ingredients?

Answers

The answer the the question is 22

An atom of an element always contains

Answers

Answer:

An atom of an element always contain three fundamental particles called electrons(e-) , neutron ( n zero) and protons ( p+)

An atom of an element always contains a proton, electron and neutron.

What is an atom ?

Every atom is made up of a nucleus and one or more electrons that are attached to the nucleus. One or more protons and a number of neutrons make up the nucleus. Only the most common type of hydrogen is neutron-free. Every solid, liquid, gas, and plasma is made up of atoms that are either neutral or ionized.

But when it comes to the word atom, we must go back to 400 B.C. Greece. And Democritus, a brilliant philosopher, proposed the Greek word atomos, which means uncuttable.

Every atom is made up of a nucleus and one or more electrons that are attached to the nucleus. One or more protons and a number of neutrons make up the nucleus.

Thus, An atom of an element always contains a proton, electron and neutron.

To learn more about an atom, follow the link;

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Name 3 elements that are found in the human body

Answers

Answer:

oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.

Explanation:

the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.

Six elements make up nearly 99 percent of the mass of the human body: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Just 0.85% of the total is made up of the following five elements: potassium, sulfur, sodium, chlorine, and magnesium. All 11 are needed for survival.
I wrote more than 3 :) you can just choose!
Have a great day! Hope this helps

Can you bond 2 silicon atoms (Si) together to form a complete (real) molecule? Explain your reasoning

Answers

Answer: no

Explanation: because silicon cannot share over 3 bonds

3) Find the mass, in grams, of 5.08 mol Ca(NO3)2

Answers

Answer:

833.12g

Explanation:

Use the mole=mass/mr equation (rearrange this to find mass)

Mr= 164

So, 5.08 x 164 = 833.12g

The mass in grams of 5.08 mol Ca(NO3)2 is =833.12g

What is a mole?

The mole is the amount of substance of a gadget which includes as many standard entities as there are atoms in zero.012 kilogram of carbon 12;

Molecular mass of Ca(NO3)2 = 40+(14+48)*2

                                                =40+124

                                                = 164 g

1 mole of Ca(NO3)2 = 164 g

5.08 mole of = 5.08*164g

                         =833.12g

Learn more about mole here:-https://brainly.com/question/15356425

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what does 3 hour change mean?​

Answers

Answer:

like what happens In 3 hours

Science activity 1.4.2​

Answers

You forgot to the pic again

OPEN ENDED QUESTION A chemistry student has a 5.001 g of CaCl2. How many moles of CaCl2 does the student have? (mm CaCl2 = 110.98 g)​

Answers

Answer:

0.04506 mol

Explanation:

For this problem, you need to convert grams to moles.  To do this, you need the molar mass, which is given.  Divide the mass by the molar mass to find the moles you have.

(5.001 g)/(110.98 g/mol) = 0.04506 mol

An independent variable is
a.
directly changed by the experimenter.
b.
manipulated by changes to the dependent variable.
C.
a variable that is kept constant.
d.
a variable that is used as a control.

Answers

Answer:

a. directly changed by the experimenter.

Explanation:

In the case of mathematical modeling, analytical modeling , and experimental sciences, the number of dependent variables based upon the amount of independent variables.

The dependent variables represent the result or outcome whose changes is being determined.

An independent variable expressed in the name form like experimental or expected variable, is a variable i.e. created in an experiment in order to verify the effect on a dependent variable

Therefore the option a is correct

Which of these forces does not act over a distance?
A. Friction
B. Electric
C. Magnetic
D. Gravitational

Answers

A. Friction is the answer

What type of energy transfer happens when you turn on a light bulb?​

Answers

Answer:In the case of an electric bulb, the electrical energy is converted to light and heat. The amount of electrical energy put into a bulb = the amount of light energy (desirable form) plus the heat energy that comes out of the bulb

Explanation:

Just trust me

Answer:

A type of energy

Explanation:

How many moles of carbon dioxide are produced when 5.12 moles of glucose undergoes a combustion reaction?

Answers

Answer: 30.72 moles of [tex]CO_2[/tex] will be produced from 5.12 moles of glucose.

Explanation:

The balanced chemical equation for combustion of glucose is:

[tex]C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O[/tex]  

According to stoichiometry :

1 moles of glucose produce =  6 moles of [tex]CO_2[/tex]

Thus 5.12 moles of glucose produce =[tex]\frac{6}{1}\times 5.12=30.72moles[/tex]  of [tex]CO_2[/tex]

Thus 30.72 moles of [tex]CO_2[/tex] will be produced from 5.12 moles of glucose.

Can you help me plz I think it’s b or c

Answers

i think its C pls dont get mad if it is wrong

The answer is very much C!!!!

9. Good insulator should be
(a) Fire proof
(b) Chemically inert
(c) Odourless in use
(d) All of the above
Ar​

Answers

Answer:

A fire proof

Explanation:

I hope this is help

Carbon is one of a few elements that bonds to itself. The scientific term for this is

Answers

Answer:

Alkanes

Explanation:

Explanation:

The answer is Alkanes.Alkanes are compound that consists entirely of atoms of carbon and hydrogen joined to one another by single bonds

Four major bahiagrass varieties

Answers

12 bdhxhsbs shzhxjdjdbsjjs
common, argentine, pensacola, and paraguay

Think of the of the body that we need in order to do things like walk, run etc. What systems are these? How do they work together so you can do these activities?

Answers

Answer:

I dont get this

Explanation:

The chemical equation, Cr + Fe(NO3)2 → Fe + Cr(NO3)3, is an example of which type of reaction?

Answers

Answer:

Redox type

Explanation:

The reaction is:

2Cr +  3Fe(NO₃)₂ → 2Fe + 2Cr(NO₃)₃

2 moles of chromium can react to 3 moles of iron (II) nitrate in order to produce 2 moles of iron and 2 moles of chromium nitrate.

If we see oxidation state, we see that chromium changes from 0 to +3

Iron changed the oxidation state from +2 to 0

Remember that elements at ground state has 0, as oxidation state.

Iron is being reduced while chromium is oxidized. Then, the half reactions are:

Fe²⁺  +  2e⁻ ⇄  Fe    (Reduction)

Cr ⇄ Cr³⁺  +  3e⁻    (Oxidation)

When an element is being  reduced, while another is being oxidized, we are in prescence of a redox reaction.

1 point
When substances that make up baking powder are mixed with water,
carbon dioxide gas is formed. This is an example of *
a nuclear reaction
a physical reaction
a change of state
a chemical reaction

Answers

It’s the last one Chemical Reaction

What’s is CO written?

Answers

Answer:

CO is a chemical formula that contains one carbon atom (C) and one atom of oxygen (O). Altogether, CO translates to "carbon monoxide."

Explanation: Why monoxide and not dioxide? Well, the prefix mono means "one," and di means "two." Since there is only one oxygen atom (-oxide), then it must be monoxide! Voila!!

what is atomic number of sodium​

Answers

Answer:

Explanation:

Sodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is ²³Na. The free metal does not occur in nature, and must be prepared from compounds.

Answer: Atomic number for sodium is 11

Symbol: Na

Melting point: 207.90°F (97.72°C)

The electronic configuration of sodium is 2, 8, 1

PLZ HELP WILL BRAINLIEST
Balance the following equation: Fe2(SO4)3 + KOH --> K2SO4 + Fe(OH)3

Write the coefficients that you decide to balance the equation like this 3, 4, 3. If you do not add a coefficient in front of an element or compound, use a 1 in your answer. For instance the for this balanced equation: 2H2 + O2 --> 2H2O you would write your answer: 2, 1, 2

Answers

Answer:

6,3,2

Explanation:

Fe2(SO4)3 + 6 KOH = 3 K2SO4 + 2 Fe(OH)3

What is the percent composition of each element in the compound below:
CrPO4

Answers

Chromium phosphate pentahydrate

i really need help, this is important to me, if not i get my harry styles tickets taken away and if that happens my life is over lol, i’m not saying it for sympathy i just REALLY need help

Answers

Explanation:

First Question

Group 18 elements. This is because the noble elements do not conduct electricity.

Second Question

Chewing in the mouth breaks food into small pieces

Third Question

How many atoms of each element are present in the molecule?

7 carbon atoms, 14 Hydrogen atoms and 1 oxygen atom

Answer the multiple choice question below
Which physical property allows liquid-liquid mixtures to be separated using filtration?
I
A. Melting point
В.
Density
C.
Flammability
Evaporation

Answers

Answer:

flammability evaporation

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