3. How do you observe stuff?

Answers

Answer 1

Answer:

by looking at the and researching for super long

Explanation:

Answer 2
By reaching or looking

Related Questions

The distinctive odor of vinegar is due to acetic acid, HC₂H₃O₂, which reacts with sodium hydroxide. If a 3.45 mL sample of vinegar needs 42.5 mL of 0.115 M NaOH to be neutralized, how many grams of acetic acid are in a 1.00 L bottle of this vinegar?​

Answers

Answer:

Explanation:

CH₃COOH + NaOH = CH₃COONa + H₂O .

42.5 mL of .115 M of NaOH will contain .0425 x .115 moles of NaOH

= 48.875 x 10⁻⁴ moles NaOH

It will react with same number of moles of acetic acid

So number of moles of acetic acid in 3.45 mL = 48.875 x 10⁻⁴

number of moles of acetic acid in 1000 mL = 48.875 x 10⁻⁴ x 10³ / 3.45 moles

= 1.4167 moles

= 1.4167 x 60 gram

= 85 grams .

So 85 grams of acetic acid will be contained in one litre of acetic acid.

Which statement explains why some elements decay and others do not?

Answers

Where are the statements?

Answer:

C) Elements that decay have a proton to neutron ratio that is too high or too low.

Explanation:

e2021

i need help Which of the following shows the correct order in which organs take part in the process of digestion

Answers

Answer:

Mouth

Esophagus

Stomach

The small intestine

Colon (large intestine)

Rectum


Convert the following to Kelvin
12) 0° C
13) -50° C
14) 90° C
15) -20° C

Answers

Answer:

12)273.15 kelvin

13)223.15 kelvin

14)363.15 kelvin

15)253.15 kelvin

Explanation:

thank u!!!

Answer:

12) 273.15

13) 223.15

14) 363.15

15) 253.15

Explanation:

Formula:

_C+273.15=_K

Now look closely at the patterns in the table. Compare the elements in each column and row. What can we say about
elements in the same group and elements in the same period of the periodic table?
Select all the correct answers.
The number of electrons in the second energy level increases by one down each column.
Elements in the same row have the same number of occupied energy levels.
For each column, the last occupied energy level has the same number of electrons.
The number of electrons in the first energy level increases by one from Li to Ne.

Answers

Answer: Elements in the same row have the same number of occupied energy levels. For each column, the last occupied energy level has the same number of electrons.

Explanation: Straight from PLATO.

On comparing the elements we can say that:

B. Elements in the same row have the same number of occupied energy levels.

Elements in periodic table:

In the periodic table, elements are arranged in an order of increasing atomic number. It comprises of seven periods and eighteen groups.

The elements present in the same row or in the same period will have equal number of energy levels or shells.

Thus, option B is correct.

Find more information about periodic table here:

brainly.com/question/15987580

Which of the following is a natural source of electricity?
A deep mines
B ligthening
C coal
D car batteries

Answers

Answer:

c

Explanation:

by burning it we get steam from.it electricity ..........

Help fast!
Determine the density of a liquid if it’s mass is 50.5 grams.

Answers

Answer:

do we have the volume ?

Explanation:

Which element would be the least similar to magnesium

Answers

Answer:

Chemistry Q&A Library decide which element probably forms a compound with chlorine that has a chemical formula most and least similar to the chemical formula of the compound formed by chlorine and magnesium most and least similar to magnesium:strontium,rubidium,phosphorus, cesium

Explanation:

hope this helped ❤✨

Yup listen to the person above

2 Examples of solid, liquid and gas

Answers

Answer:

Solid

1. Stone

2. Brick

Liquid

1. Water

2. Oil

Gas

1. Oxygen

2. Nitrogen

Answer:

rock and sand, water and steam, smoke and hydrogen

Explanation:

rock and sand are solids, water and steam are liquids, smoke and hydrogen are gases. trust me i know this

BRAINLIEST
What type of bond is Cu and F Ionic or Covalent? ​

Answers

An ionic bond because it is between a non-metal and a metal. I hope this helps!


Which of the following is a chemical property of a sheet of paper?

A. The paper can be burned.
B. The paper can be crumbled.
C. The paper does not attract a magnet.
D. The paper does not conduct electricity.

Answers

Answer:

A

Explanation:

Flammability is a chemical property. The paper crumbling would be a physical property. The inability to attract a magnet or conduct electricity would be considered electrical properties

Explain the difference between terms "bonded" and "attracted'

Answers

bonded means that the two have come together and are attached together, wheras attracted means that the two like to come close to each other but are not put together


Convert the following to Celsius
16) 100°K
17) 200°K
18) 273°K
19) 350°K

Answers

16) 100- 273= -173°celsius

17) -73°Celsius

18) °Celsius

19) 77°Celsius

Hi :)

16) 100°K= 100K − 273.15 = -173.1°C

17) 200°K= 200K − 273.15 = -73.15°C

18) 273°K= 273K − 273.15 = -0.15°C

19) 350°K= 350K − 273.15 = 76.85°C

Hope this helps :)

What is often added to the water used when reacting the group 1 metals with
water?
Universal indicator
An acid
An alkali
Oil
What is produced when sodium reacts with water?
Sodium oxide and water

Answers

Answer:

an acid.

sodium oxide and water

What form of energy is stored once glucose is from
o A. light energy
O B. kinetic energy
O C. chemical energy
O D. mechanical energy

Answers

Answer:

The form of energychemical energy

Which timeline best shows the history of the development of cell theory? 1665 1838 Schleiden 1855 Hooke VirchowN 1600 1700 1676 1800 1900 1839 Schwann Leeuwenhoek 1665 Hooke 1838 1855 Schleiden Virchow 1700 1800 1900 1676 Leeuwenhoek 1830 Schwann 1665 1838 1855 Hooke Leeuwenhoek]Virchow O 1600 1700 1676 1900 1839 Schwann Schleiden 1665 1838 1855 O Virchow Schwann Hooke 1700 1800 1676 1839 1900 Leeuwenhoek Schleiden.

Answers

Answer:

Schleiden, Schwann, and Virchow

Explanation:

A component of the cell theory is that all living things are composed of one or more cells.

A component of the cell theory is that the cell is the basic unit of life.

A component of the cell theory is that all new cells arise from existing cells.

Answer:

B is right edg 2021

Explanation:

what element has 3 valence electrons in the 3rd energy level

Answers

Answer:

Aluminum (Al)

Explanation:

It has 3 electron orbitals and has 3 valence electrons

Bromine, a liquid at room temperature, has a boiling point of 58°C and a melting point of –7.2°C. Bromine can be classified as a
compound.
impure substance.
mixture.
pure substance.

Answers

Answer:

D. pure substance.

Explanation:

Answer:

:D

Explanation:

moles in 9.01x10^23 molecules water

Answers

Answer:

The answer is 1.50 moles

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\ [/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{9.01 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{9.01}{6.02} \\ = 1.496677740...[/tex]

We have the final answer as

1.50 moles

Hope this helps you

Answer: 1.50 moles

Explanation:

11) Identify the number of elements and the number of atoms present in the chemical formula. NaHCO ²
4; 6
5; 6
4,5
3; 5​

Answers

Answer:

4;6

Explanation:

because there are four elements

the answer will be .. A . 4;6

how many significant figures are in the number 3×10⁶​

Answers

Answer:

1 significant figure

Explanation:

3×10^6 is 3,000,000

Non-zero digits are always significant

Any zeros between two significant digits are significant

A final zero or trailing zeros in the decimal portion ONLY are significant

Example:  .500 or .632000 the zeros are significant

                 .006  or .000968 the zeros are NOT significant

PLEASE explain your answer!!!!​

Answers

Answer:

Explanation: confusing

what is homogeneous mixture?

Answers

A mixture is a portion of matter made up of two or more substances called constituents. Mixtures are the product of the mechanical joining of substances without change in chemical nature, and therefore, each constituent retains its properties.

the option 4

what type of ions are the atoms Mg and Na expected to be? why?

Answers

Answer:

its C

Explanation:

just took the quiz

please helppp!!!
Consider the following intermediate chemical equations.
C(s) +202(g) → CO(g)
CO(g)+302(g) → CO2(g)
How will oxygen appear in the final chemical equation?
O O2(g) as a product
O O2(g) as a reactant
O O(g) as a product
O 20(g) as a reactant

Answers

O₂(g) as a reactant

Further explanation

In chemical reactions, there is a reaction between reagents and products

Reaction:

aA + bB ⇒ cC

Substances A and B are called a reactants

Substance C is called a product

In the above reaction:

Reactants: C, O₂ and CO Products: CO and CO₂

CO functions as a product in the first reaction and functions as a reactant in the second reaction  

In the final chemical equation :

CO(g)+30₂(g) → CO₂(g)

O₂ is on the left so it is called the reactant

Answer: B. O₂(g) as a reactant

I WILL GIVE U BRAINLIEST

Answers

Answer: YEAH ITS the third one

Explanation: duhh

what are the 3 subatomic particles of the atom? What are their corresponding charges and locations within the atom?

Answers

Answer:

Protons, neutrons, and electrons are the three main subatomic particles found in an atom.

Explanation:

the negatively charged electrons can be found around the nucleus in an electron cloud.

If its density is 34 g/ml, what is the mass of 120.0 ml of the liquid?

Answers

Answer:

The answer is 4080 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 120 mL

density = 34 g/ml

We have

mass = 34 × 120

We have the final answer as

4080 g

Hope this helps you

Why is hydrogen peroxide sold in opaque plastic bottles?

Answers

it's not a very stable compound

does anyone have any information about "trititanium pentoxide" or "titanium oxide"? ​

Answers

Answer:

Commonly available heat-storage materials cannot usually store the energy for a prolonged period. If a solid material could conserve the accumulated thermal energy, then its heat-storage application potential is considerably widened. Here we report a phase transition material that can conserve the latent heat energy in a wide temperature range, T<530 K and release the heat energy on the application of pressure. This material is stripe-type lambda-trititanium pentoxide, λ-Ti3O5, which exhibits a solid–solid phase transition to beta-trititanium pentoxide, β-Ti3O5. The pressure for conversion is extremely small, only 600 bar (60 MPa) at ambient temperature, and the accumulated heat energy is surprisingly large (230 kJ L−1). Conversely, the pressure-produced beta-trititanium pentoxide transforms to lambda-trititanium pentoxide by heat, light or electric current. That is, the present system exhibits pressure-and-heat, pressure-and-light and pressure-and-current reversible phase transitions. The material may be useful for heat storage, as well as in sensor and switching memory device applications.

Explanation:

Other Questions
How can you find the truth using dialectic(philosophy subject) Helpppp meeeeeFind the value of earache missing variable Choose the SIMPLIFIED fraction that accurately represents the repeating decimal. (Each of these)1. 0.333 2.0.4545453.0.3535354.2424245.0.393939 help me please i need help How can unmonitored water contamination affect human populations, farming, and industry in the Cleveland area? Which crop needs waterlogging in the field for improved growth and production? Find the missing side what is the skydivers acceleration If you were to decrease thermal energy, what would happen to the particles? What is the difference between the function's values on Day 1?03570105 how to rap fast.Ive tried: Practice for a year, tutorials, jaw exercises(eating), and a thing called sleep.doesnt work for me and idk why what is 234 divided by 2 pls help me Disruptive selection in the environment refers to?A. One extreme/trait favoredB. Two extremes/traits favoredC. No extremes/traits favoredD. Three extremes/traits favored Find the distance between the points (-3,7)and(6, 7). A number is written with a base and an exponent. What isanother name for the exponent? -rational number-base-exponent-power What was known before Franklin and Wilkins conducted their studies of DNA? Select three options.DNA is found in the nucleus of a cell. The human genetic code is made of 50,000 genes.Organisms store and transmit genetic information. DNA has a double-helix structure. Cells contain protein molecules. 9. A candle has an initial height of12 inches. Sara lights the candle and it begins to melt at an average rate of 0.5inch per hour. Which function can be used to find the height of the candle inches after x hours?A) H(X) = 0.5(x +12) B) H(x) = -0.5(x +12) C)H(x) = 12 +0.5x+D) H(X) = 12 -0.5x1 Pt.BDE Journalize the following transactions by Bramble Printing Company. (Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select ""No Entry"" for the account titles and enter 0 for the amounts.) 1. Stockholders invest $87,000 cash to start the business. 2. Purchased three digital copy machines for $445,000, paying $108,000 cash and signing a 5-year, 6% note for the remainder. 3. Purchased $4,000 paper supplies on credit. 4. Cash received for photocopy services amounted to $7,300. 5. Paid $400 cash for radio advertising. 6. Paid $950 on account for paper supplies purchased in transaction 3. 7. Dividends of $1,400 were paid to stockholders. 8. Paid $2,100 cash for rent for the current month. 9. Received $2,200 cash advance from a customer for future copying. 10. Billed a customer for $350 for photocopy services completed.(The Titles that are used on this chart are No. Account Titles and Explanation, Debit, Credit)*LIST OF ACCOUNTS*Accounts Payable, Accounts Receivable, Advertising Expense, Bonds Payable, Buildings, Cash, Common Stock, Dividends, Equipment, Gasoline Expense, Income Tax Expense, Income Taxes Payable, Insurance Expense, Land, Maintenance and Repairs expense, Mortgage Payable, No Entry, Notes Payable, Notes Receivable, Prepaid Insurance, Prepaid Rent, Rent expense, Rent revenue, repair services, retained earning, sales and wages expense, salaries and wages payable, sales revenue, service revenue, supplies, supplies expense, unearned service revenue, utilities expense, website can someone please give me a short chapter 2 summary of The Outsiders please??:) Why does Douglass use allusions to the Declaration of Independence in hisspeech?O A. They underscore the need for the North and South to compromiseon the issue of slavery.B. They help Douglass prove he is literate.C. They make slavery seem to be a necessary evil for the continuedindependence of the country.D. They make it difficult for his audience to defend slavery whenconsidered in the context of that document.