What is the speed of an object that travels 20 meters in 5

Answers

Answer 1

Answer:

5 what

Explanation:

not enough information


Related Questions

A(n) ___ is a compound that dissolves in water to produce hydrogen ions in solution. A(n) ___ produces hydroxide ions. Acids have a ___ taste and bases have a ____ taste. Both acids and bases conduct ____ and are ____. A pH of ____ is neutral. A pH of 6 is ___ and a pH of 14 is a __

Answers

Answer:

see explanation

Explanation:

Question

A(n) ACID is a compound that dissolves in water to produce hydrogen ions in solution. A(n) _BASE__ URhydroxide ions. Acids have a SOUR___ taste and bases have a BITTER____ taste. Both acids and bases conduct _ELECTRICITY___ and are _REACTIVE___. A pH of7 ____ is neutral. A pH of 6 is _ACIDIC__ and a pH of 14 is a BASIC__

HELPPPPP ASAPPP PLZZZZ

Answers

Answer:

9

Explanation:

i think i dont know

maybe someone tell me if I'm wrong

9. I’d say the same

NO LINKS PLS!!!
AND I WILL MARK THE BRAINEST ANSWER

Answers

Answer:

(H2O)n

raduim hydroxide

hBr

carbonic acid

Explanation:

PLEASE HELP 35 POINTSSS

Answers

Answer:

I think it's B or A. Though I believe it is more so B. I think I'm right though.

Explanation:

Your answer would be D <3


I’m so sorry if this is wrong let me know if it is.

which of the following controls all the activities which go on in the cell​

Answers

Answer:

That would be the necleus! I hope this helps you! :)

The answer to the question is nucleus

The electronic configuration of an element is given below.

Element 1: 1s22s22p4

Which statement about the reactivity of the element is true?

It is reactive because it has to gain an electron to have a full outermost energy level.
It is unreactive because it has to lose an electron to have a full outermost energy level.
It is reactive because it has to gain two electrons to have a full outermost energy level.
It is unreactive because it has to gain two electrons to have a full outermost energy level.

Answers

Answer:

It is reactive because it has to gain an electron to have a full outermost energy level.

Explanation:

Answer:

A

Explanation:

If 83.6 grams of H2 and 257 grams of N2 react, how many grams of ammonia will be produced?

Answers

The mass of ammonia that would be produced is 312.5 g

First, we will write a balanced chemical equation for the reaction

The balanced chemical equation for the reaction is

3H₂(g) + N₂(g) → 2NH₃(g)

This means

3 moles of hydrogen gas reacts with 1 mole of nitrogen gas to produce 2 moles of ammonia.

First, we will determine the number of moles of each reactant present

For Hydrogen (H₂)

Mass = 83.6 g

Molar mass = 2.016 g/mol

Using the formula

[tex]Number\ of\ moles = \frac{Mass}{Molar\ mass}[/tex]

Number of moles of H₂ present = [tex]\frac{83.6}{2.016}[/tex]

∴ Number of moles of H₂ present = 41.468254 moles

For Nitrogen (N₂)

Mass = 257 grams

Molar mass = 28.0134 g/mol

∴ Number of moles of N₂ present = [tex]\frac{257}{28.0134}[/tex]

Number of moles of N₂ present = 9.174181 moles

Since,

3 moles of hydrogen gas reacts with 1 mole of nitrogen gas to produce 2 moles of ammonia

Then,

27.522543 moles of hydrogen gas will react with the 9.174181 moles of nitrogen gas to produce 18.348362 moles of ammonia

18.348362 moles of ammonia will be produced during the reaction

Now, for the mass of ammonia that would be produced

From the formula

Mass = Number of moles × Molar mass

Molar mass of ammonia = 17.031 g/mol

Mass of ammonia that would be produced = 18.348362 × 17.031

Mass of ammonia that would be produced = 312.49095 g

Mass of ammonia that would be produced ≅ 312.5 g

Hence, the mass of ammonia that would be produced is 312.5 g

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how to calculate atomic mass of sodium ?(in process)​

Answers

Answer:

Atomic mass of Sodium is 22.9897 u. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. The unit of measure for mass is the atomic mass unit (amu). One atomic mass unit is equal to 1.66 x 10 -24 grams.

Explanation:

What was the ratio in the formula for Iron (II)
oxide?
lete
What was the ratio in the formula for Iron (III)
oxide?
DONE

Answers

Answer:

In Iron (II) oxide, ratio is 1:1

In iron (III) oxide, ratio is 4:2

[tex].[/tex]

In Iron (II) oxide, ratio is 1:1

What is the importance of iron oxide?

Iron oxides are very important components in most soils as they have major influence on chemical, physical, and microbial properties of soils. Because of their nanoparticulate size (usually 5-200 nm), iron oxides possess large specific surface area.

Generally, iron oxides are prevalent, widely used as they are inexpensive, and play an imperative role in many biological and geological processes. They are also extensively used by humans, eg, as iron ores in thermite, catalysts, durable pigments.

When iron is exposed to moisture or oxygen, oxidation occurs. During this chemical reaction, iron is converted into iron oxide. The iron oxide typically has a reddish, flaky appearance that becomes progressively worse over time.

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in the reaction of aluminum metal and oxygen gas to make aluminum oxide, how many moles of aluminum will react with 0.80 grams o2?

Answers

Answer:

When 6.38 moles of O2 and 9.15 moles of Al react, the ratio of aluminum to oxygen is 9.15/6.38 = 1.434. This shows that all of the oxygen is consumed before the aluminum and when the reaction ends the reactant aluminum is left. The number of moles of Al2O3 formed is approximately 4.25 moles.

Im doing a science project and need examples and non-examples of an Atom. some examples of an atom is neon, hydrogen, argon, etc so I got that part. But what are some non-examples of an atom and why?​

Answers

Answer:

Anything not on the periodic table is an element non example! ... So, for a substance to be an element, all of its atoms must have the same number of protons. Examples of elements include hydrogen, lithium, nickel, and radium.

Explanation:

Non-examples of an atom refer to entities that are not considered atoms.

Molecules consist of two or more atoms chemically bonded together. They are not considered individual atoms because they contain multiple atoms connected by chemical bonds.

Ions are electrically charged particles formed when atoms gain or lose electrons. They can be positively charged (cations) or negatively charged (anions).

Subatomic particles are the constituents of atoms. They include protons, neutrons, and electrons.

Compounds are substances composed of two or more different elements chemically combined.

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Which is the Lewis structure for H3PO4?
::
i
H-Ö
0-H
ö
öz-ö-1
H
I
H
H-0–H
ô–P 6

Answers

Answer:

C. H:C:H:H

Explanation:

Follow these simple steps to correctly draw a Lewis dot structure: Add up the total number of valence electrons found in the entire compound. Draw the simple structure (skeleton structure) of the compound by connecting everything with single bonds only. Add electrons to all the noncentral atoms. Put any unused electrons on the central atom.

All live things (plants included) must turn food into _________ that can be used (___________), and then release waste products.





Earth science!

Answers

Answer:

I think it is

1. energy

2. respiration

Your future is affected by your choices today? I agree or disagree​

Answers

Answer:

The choice that we had decided on doing today factors our future because whatever choice we decide on doing in the present day can impact how our life will play out in the future. ... After all, it is your life, so whatever you chose to do, you have the power to decide and create what you think would be best for you

Explanation:

What volume of hydrogen gas forms if 10.0 g of Zn reacts at STP?

Answers

Answer:

0.690 liters is the volume of hydrogen gas produced if 2.00 grams of zinc is used with an excess of hydrochloric acid.

Explanation:

Zn(s)+2HCl(aq)\rightarrow ZnCl_2(aq)+H_2(g)Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)

Mole so zinc = \frac{2.00}{65 g/mol}=0.03077 mol65g/mol2.00=0.03077mol

According to reaction, 1 mole of zinc gives 1 mole of hydrogen gas.

Then 0.03077  mole of zinc will give :

\frac{1}{1}\times 0.03077 mol=0.03077 mol11×0.03077mol=0.03077mol of hydrogen gas

Pressure of hydrogen gas ,P= 1 atm

Temperature  of of hydrogen gas ,T= 273.15 K

Volume of hydrogen gas = V = ?

Moles of hydrogen gas = 0.03077 mol

PV = nRT (Ideal gas equation )

V=\frac{nRT}{P}=\frac{0.03077 mol\times 0.0821 atm L/mol K\times 273.15 K}{1 atm}V=PnRT=1atm0.03077mol×0.0821atmL/molK×273.15K

V = 0.690 L

any atom is most stable when it’s outermost energy level contains

Answers

Explanation:

Atoms are at their most stable when their outermost energy level is either empty of electrons or filled with electrons. Sodium atoms have 11 electrons. Two of these are in the lowest energy level, eight are in the second energy level and then one electron is in the third energy level.

Any atom is most stable when it’s outermost energy level contains eight electrons.

What is an atom?

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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1
2. How does a detergent remove a stain?
?

Answers

Answer:

By using various chemical compounds to lift the stain while being gentle enough to keep fabric intact.

which physical quantity is not used when determining the stoichiometry in this experiment?

Answers

The physical quantity that is not used when determining the stoichiometry in this experiment is temperature.

Stoichiometry offers a way in which we can calculate the amount of reactants and products using mass - mole relationship. The mass of reactants, number of moles of reactant, mass of product and mass of precipitate can all be used to determine the stoichiometry.

However, the temperature of a reaction is not used to determine the stoichiometry of the reaction.

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Which physical quantity is NOT used when determining the stoichiometry in this experiment?

mass of precipitate mass of product moles of reactant temperature

what family is hydrogen in? explain

Answers

Explanation:

Hydrogen is a very special element of the periodic table and doesn't belong to any family. While hydrogen sits in Group I, it is NOT an alkali metal.

NO LINKSSS PLEASE!!!

When a 1.0 gram of a salt is added to a beaker containing a solution of the salt, the salt crystals dissolve. It can be concluded that the original solution was...

Select one:
a. concentrated.
b. saturated.
c. supersaturated.
d. unsaturated.​

Answers

b) unsaturated

Hope this helped you- have a good day bro cya)

how much does it cost to fill a 100lb propane tank

Answers

Answer:

$500

Explanation:

G00gle.

write short notes on the following:1. Analytical chemist 2. Chemical engineer 3. Healthcare scientists 4. Forensic scientist 5. Research scientist 6. Toxicologists 7. Pharmaceutical chemist 8. Nuclear chemist 9. Industrial chemist.​

Answers

Analytical chemistry studies and uses instruments and methods used to separate, identify, and quantify matter. In practice, separation, identification or quantification may constitute the entire analysis or be combined with another method. Separation isolates analytesChemical engineers use chemistry and engineering to turn raw materials into usable products, such as medicine, petrochemicals, and plastics on a large-scale, industrial setting. They are also involved in waste management and research. ... They may be involved in designing and constructing plants as a project engineer.A healthcare scientist or medical scientist is a scientist working in any of a number of health related disciplines. Healthcare scientists may work directly for health service providers, or in academia or industry. Forensic science, also known as criminalistics, is the application of science to criminal and civil laws, mainly—on the criminal side—during criminal investigation, as governed by the legal standards of admissible evidence and criminal procedure. Research scientists are responsible for designing, undertaking and analysing information from controlled laboratory-based investigations, experiments and trials. You could work for government laboratories, environmental organisations, specialist research organisations or universities.Toxicology is a scientific discipline, overlapping with biology, chemistry, pharmacology, and medicine, that involves the study of the adverse effects of chemical substances on living organisms and the practice of diagnosing and treating exposures to toxins and toxicants. A medicinal or pharmaceutical chemist researches and creates chemical compounds for use as drugs. By applying chemical research techniques to isolate natural healing agents or develop artificial ones, these chemists play a vital role in the pharmaceutical industry.Nuclear chemists conduct basic, applied, or theoretical research. They often work in laboratories and may be responsible for operating, maintaining, and repairing state-of-the-art instrumentation.Some industrial chemists work to improve product efficiency or to create better building materials, plastics, textiles, or petroleum products. They may help to set new industry standards, improve production techniques, and increase the effectiveness of various chemical processes.

Which of the following describes a chemical property of oxygen?
Oxygen is a gas at room temperature.
An oxygen molecule has an atomic mass of 32 a m u.

The density of oxygen is 0.00133 grams per centimeter cubed .

Oxygen reacts with iron to form rust.

Answers

Answer:

Oxygen Reacts with Iron to Form Rust is the Correct Answer

Write the chemical formula for disilicon hexabromide.

Answers

Answer:

Br6Si2

Explanation:

The chemical formula for disilicon hexabromide is Si₂Br₆.

The chemical formula of a compound is a symbolic representation of its chemical composition.

Chemical formulae gives information about the elements that constitute the molecules of a compound and also about the ratio in which the atoms of these elements combine to form such molecules.

Every constituent component in a chemical formula is identified with its chemical symbol, along with the relative number of atoms that make up each element.

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fdsddddgdgdgdgsdggd.

Answers

Fdsddadgdsadgsd:
Fasdadasdfadsdfasdf asfsadafasdfasdffdaddad dads fdfgdfgfdg

Fdgdfgdfgdgfggggfg gdfgdfgd:
Fgdfgdfgdfgrdfhdf hdfgdfhdfh == fhdfgdfh /fhdgdg .

Someone pls help me I will make you brain

Answers

Answer:

I believe the answer is II and III

Explanation:

I'm not sure if III is right cause I cannot read the last word but I think it's OK.

Hope this helped :)

what is the chemical formula for the most common fragment of acetic acid?

Answers

Answer:

the scientific formula is C2H4O2

Explanation:

The cleavage of the compounds resulted in the fragments with varying stability. The most common fragment of acetic acid is [tex]\rm C_2H_4O_2^+[/tex].

What are the most common fragments?

The common fragments in the molecular compound are the species that result in the neutral ions adn electrons with the cleavage of the bonds.

Acetic acid is a weak acid in nature, and is composed of the carbon, hydrogen and oxygen elements.

The cleavage of the species in the acetic acid spectrum resulted are, [tex]\rm [COOH^+],\;[CH_3CO^+],\;[CH_2CO^+],\;[HCO^+],\;[CO^+],\;[CH^3^+][/tex].

The species, with the highest m/z ration, has been the most common fragment of the acetic acid. The m/z ratio of the following species is given in the table attached.

From the table, the highest ratio for the stability has been found with [tex]\rm C_2H_4O_2^+[/tex]. Thus, the most common fragment of acetic acid is [tex]\rm C_2H_4O_2^+[/tex].

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roq-sbam-yiq come guys fast ​only g

Answers

Answer:

what is this?

Explanation:

write your question

That’s not even English

If a planet's distance from the Sun is doubled, which of the following is true?

The orbital period increases.
The orbital period increases.

The eccentricity of its orbit increases.
The eccentricity of its orbit increases.

The average speed of the orbiting planet increases.
The average speed of the orbiting planet increases.

The gravitational force between the planet and the Sun increases.

Answers

Answer:

La fuerza gravitacional entre el planeta y el Sol aumenta.

Explanation:

Describe how glacier mice are complete ecosystems, even though they are tiny.
GIVING BRAINIEST

Answers

Answer: The clumps, known as glacier mice, have been found to contain miniature ecosystems

Explanation: Because glaciers are in constant, if slow, motion and are frequently blasted by strong winds.

The clumps, known as glacier mice, have been found to contain miniature ecosystems. And even in freezing temperatures, scientists found, the inhabitants manage to thrive. In high winds glacier mice, which form when clumps of dust and organic debris develop a layer of moss over time, hop across vast sheets of ice.

What organisms live in glacier mice?

These included springtails (small insect-like animals), water bears (also known as tardigrades, the only animals known to have survived in space), and roundworms. Globally, glacier mice are rare.

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