PLS HELPPP ASAP

According to the Periodic Table of Elements, the neutral atom of what element has 4
protons, 5 neutrons, and 4 electrons?
O A. beryllium
O B. boron
OC. fluorine
D. aluminum

Answers

Answer 1
The answer is beryllium

Related Questions

what is an acid containg oxygen?​

Answers

Explanation:

An oxyacid, oxoacid, or ternary acid is an acid that contains oxygen. Specifically, it is a compound that contains hydrogen, oxygen, and at least one other element, with at least one hydrogen atom bonded to oxygen that can dissociate to produce the H+ cation and the anion of the acid.

Answer:

oxyacid, oxoacid

Explanation:

An oxyacid, oxoacid, or ternary acid is an acid that contains oxygen. Specifically, it is a compound that contains hydrogen, oxygen, and at least one other element, with at least one hydrogen atom bonded to oxygen that can dissociate to produce the H+ cation and the anion of the acid.

anyone know this? i’m having trouble...please help.

Answers

Second one


Why because the last two are wrong there is no way they are common when they have different genes the first one is wrong too so the second

When kci dissolved in ethanol what is the intermolecular attraction between k+ ions and ethanol molecules

Answers

Answer:

ion-dipole interaction

Explanation:

Ethanol is a polar molecule due to the presence of the polar O-H group in the molecule. This means that the molecule has a dipole moment.

The positive end of the dipole lies on hydrogen while the negative end of the dipole lies on oxygen.

When KCl is dissolved in ethanol, K^+ ions can interact with the negative end of the dipole in ethanol by ion-dipole interaction.

Explain what a catalyst is and give an example of a transition as one.

Answers

Answer:

Catalyst, in chemistry, any substance that increases the rate of a reaction without itself being consumed.

...

Catalyst.

process catalyst

ammonia synthesis iron

sulfuric acid manufacture nitrogen(II) oxide, platinum

cracking of petroleum zeolites

what is the smallest unit of NaCl?​

Answers

Answer:

A molecule of Nacl

Maybe

AgNO3 (aq) +
Cu(s) —
Cu(NO3)2 (aq) +
| Ag(s)
What is the integer?

Answers

Answer:

2

Explanation:

2AgNO3 + Cu -----> Cu(NO3)2. + 2Ag

A gas at a pressure of 360 torrs and a volume of 750 ml. If the pressure becomes 1.5 atm what is the new volume?

Answers

Answer:

V₂ = 236.84 mL

Explanation:

The relation between pressure and volume is inverse.

We can write it as follows :

[tex]P_1V_1=P_2V_2[/tex]

We have,

P₁ = 360 torrs, V₁ = 750 mL, P₂ = 1.5 atm = 1140 torr.

So,

[tex]V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{360\times 750}{1140}\\\\V_2=236.84\ mL[/tex]

So, the new volume of the gas is 236.84 mL.

Determine el número de moles presentes en una esfera de titaniode 0.5 cm de radio, sabiendo que la densidad del titanio es de 4507kg/m³. =433

Answers

Answer:

0.0493 moles de Titanio

Explanation:

Primero, debemos hallar el volumen de la esfera. Usando la densidad podemos hallar la masa de titanio y usando la masa atómica encontraremos las moles de titanio:

Volumen de la esfera:

Volumen esfera  = 4/3π * Radio³

Volumen = 0.5236cm³

En m³ (1m³ = 1x10⁶cm³):

0.5236cm³ * (1m³ / 1x10⁶cm³) = 5.36x10⁻⁷m³

Masa en gramos:

5.36x10⁻⁷m³ * (4507kg / m³) = 2.36x10⁻³kg * (1000g / 1kg) = 2.36g de Titanio

Moles -Masa molar Ti: 47.867g/mol-:

2.36g de Titanio * (1mol / 47.867g) =

0.0493 moles de Titanio

A neutral atom has 12 protons. In chemical bonding, which is the most likely charge of the ion?

A. 2+
B. 1+
C. 2-
D. 6-

Answers

It’s most likely A. 2+

This image models…

diffraction
reflection
refraction
absorption

Answers

Answer:

reflection is correct answer by my views

How do temperature, humidity, and pressure vary within an air mass?


A.Temperature and humidity vary, but pressure does not.


B.Humidity makes the pressure in an air mass increase.


C.Temperature, humidity, and pressure are basically the same all through an air mass.


D.Temperature at the border of an air mass is always higher than in the middle.


Make sure to give me an explanation so I don't get dirt about me cheating. I just really need to know this simple question. Please, be so helpful.

Answers

Answer:

C

Explanation:

Temperature, humidity, and pressure are all the same through an air mass.

Which type of plate boundary is associated with seafloor spreading at the source of the spread: convergent, divergent, or transform?

Answers

Answer:

The answer is divergent

Will mark brainiest!!!! Also I posted other questions

Answers

Answer:

Crash sensors measure how quickly a vehicle slows down in a frontal crash or accelerates to the side in a crash Some vehicles are equipped with a sensing system designed to detect the onset of a rollover crash Rollover crash sensors may be located in the ecu or at the center of the vehicle

The the Crash trip sensors in cars that send an electric signal to an ignitor The heat generated causes sodium azide to decompose into sodium and nitrogen gas which inflates the airbags

Explanation:

have a nice day

There are only 90 naturally occurring elements on Earth but there are millions of different substances explain how this is possible and describe how it applies to at least three examples

Answers

Answer:

See explanation

Explanation:

While it is true that there are only about 90 naturally occurring elements, these elements are capable of combining with each other to form millions of substances.

Most of the substances that we see around us today result from a combination of one or more of these naturally occurring elements.

Let us look at three examples;

The carbohydrate in food is composed of carbon, hydrogen and oxygen

The stainless steel materials we use are composed of iron, carbon and other trace elements

Glass is made up of silicon, oxygen and other elements

Only 90 naturally occurring elements capable of combining with each other to form millions of substances.

Compounds:

When two or more elements combine in a certain ratio to form a molecule.

For example-

Water is made up of two hydrogen and one Oxygen ration is 2:1.

If hydrogen and Oxygen combine inn 2:2, they for Hydrogen peroxide.

Water gives life and Hydrogen peroxide can kill a person.

Other examples are,

The carbohydrate in food is composed of carbon, hydrogen and oxygen.  The stainless steel is made up of  iron, carbon and other trace elements.  Glass is composed of silicon, oxygen and other elements.

Therefore, only 90 naturally occurring elements capable of combining with each other to form millions of substances.

To know more about Compounds,

https://brainly.com/question/13119094

How many atoms of cobalt are in 4 moles of cobalt?

Answers

Answer:

2 × 10²⁴ atoms Co

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Reading a Periodic TableAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Stoichiometry

Using Dimensional AnalysisExplanation:

Step 1: Define

4 mol Co (Cobalt)

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Set up:                               [tex]\displaystyle 4 \ mol \ Co(\frac{6.022 \cdot 10^{23} \ atoms \ Co}{1 \ mol \ Co})[/tex]Multiply/Divide:                 [tex]\displaystyle 2.4088 \cdot 10^{24} \ atoms \ Co[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 1 sig fig.

2.4088 × 10²⁴ atoms Co ≈ 2 × 10²⁴ atoms Co

Which organism in the food chain is
responsible for transforming radiant
energy into chemical energy?

Grass->Prairie Dog -> Coyote -> Soil Bacteria

Answers

Answer:

The organism in the food chain responsible for transforming radiant energy into chemical energy is;

Grass

Explanation:

Radiant energy is the energy present in electromagnetic waves which carry photons that may be considered as energy packets. It is an energy present in the Sunlight, which is an electromagnetic waves, and it is the energy in the electromagnetic waves that plants convert to chemical energy for food in the process known as photosynthesis as follows;

6CO₂ + H₂O + Radiant energy → C₆H₁₂O₆ + 6O₂

Therefore the organism in the food chain responsible for transforming radiant energy into chemical energy is the plant, grass

How many atoms of oxygen are in a molecule
of
glucose (C6H1206)?
Be sure to use the correct place value.

Answers

Answer:

Um... 6

Explanation:

C6H12O6

The O is oxygen and the 6 is the exact number of atoms

What are the end products of anaerobic respiration in yeast cell ?​

Answers

Answer:

glucose ethanol and co2

please follow me and mark it brainliest

Answer:

In anaerobic respiration yeast breaks down glucose, forming ethanol and carbon dioxide as its waste products. When the glucose is nearly used up, and provided that oxygen is present, yeast uses the ethanol as a respiratory substrate to produce carbon dioxide and water in aerobic respiration.

Explanation:

Hope it is helpful....

What is the molecular formula for C5H7 if its molar mass is 536 g/mol?

Answers

Answer:

(C5H7)8

Explanation:

It's empirical formula is given as; C5H7

Molar mass of carbon(C) = 12 g/mol

Molar mass of hydrogen(H) = 1 g/mol

We are told that it's molar mass is 536 g/mol.

To find the molecular formula;

Molecular formula = n × empirical formula

Thus;

n = 536/((12 × 5) + (1 × 7))

n = 8

Thus;

Molecular formula = (C5H7)8

A tank for storing liquid as a base of area 1.5 meters square. What is the pressure on the base of the tank when it contains water weighting 4500n

Answers

Answer:

3000 Nm^2

Explanation:

We must remember that pressure is defined as force per unit area.  

We have been given the following information in the question;

Area of the tank= 1.5 m^2

Weight of water in the tank = 4500N

And;

P = F/A

F= force

A = area

P = 4500 N/1.5m^2

P= 3000 Nm^2

What is the SI unit of time?
A.
second
B.
minute
C.
hour
D. day

Answers

Answer:

option a. second

.............

The answer is A. Second

Students are completing an investigation on types of heat transfer. For one part of the investigation, they place their hand on a cool window and feel the difference in thermal energy. When they are touching the glass, what type of heat transfer are they experiencing?

a .Conduction
b. Convection
c. Radiation

Answers

I think the answer is A conduction

Marie Curie was discriminated against because she was a woman. Do you feel that there are still barriers to women entering careers in science these days2. Explain your answer.​

Answers

Answer:

yes I do I feel like people think that people's are thinking that men are stronger then women in someone situations

Answer:

yes

Explanation

i would say yes because many woman and girls struggle to get jobs because of their record,hair,skin color,and past.

What will most likely cause a sudden wind to start blowing?

Answers

Answer:

wind is just high and low pressure of air, when a high pressure comes and crashes into a low pressure air pocket than it can form a wind storm.

Explanation:

The Uneven heating of the Earth's surface. Earth's rotation and unequal heating of the Earth's surface. air pressure towards regions of lower air pressure. ... air moving from areas of high pressure to areas of low pressure.

This is what will most likely cause a sudden wind to start blowing.

What is the relationship between atoms and mass?

Answers

Answer:

Explanation:

A property closely related to an atom's mass number is its atomic mass. The atomic mass of a single atom is simply its total mass and is typically expressed in atomic mass units or amu.

____ NaF + ____ Br2 à ____ NaBr + ____ F2


A. ---, 2, 2, ---

B. 2, ---, ---, 2

C. 2, ---, 2, ---

Answers

Answer:

2 NaF + Br2 --> 2NaBr + F2

Explanation:

Well first I notice that there are two flourines on the products side so we need to put a 2 of NaF. Now there are 2 sodiums on the products side so we have to put another two in front of NaBr.

2 NaF + Br2 --> 2NaBr + F2

3. How can a community help implement Ecological Solid Waste Management.
4. As a student, how can this program help you in your school?​

Answers

Answer:

It help cause we compost food scraps and other organic wastes. We also reuse and recycle materials to organize for government and industry to develop community recycling materials.

It depend on your opinion as a student.

Explanation:

Hope it helps

Organizing a community to collect waste  and implementing ecological solid waste management greatly helps to reduce pollution and landfilling also creates ideas for recycling.

What is solid waste management ?

In order to build and sustain an efficient waste management programme, community-based waste management are partnerships between non-governmental organizations, governmental organizations, and the affected communities.

Community based waste management helps to direct participation and accountability of community members monitoring the collection and reduction of trash waste separation at the homestead level

Similarly they are using priceless and reusable goods on-site , recycling organic trash as well as public collection service collects and transports garbage to a treatment facility.

Find more on waste management:

https://brainly.com/question/14665452

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Help! Will give will give brainllest


1. An airplane flies 1431 miles in 2 hours 15 minutes. What is its average speed in miles per hour?



2. A train travels 76 miles in 1 7/12 hours. What is its average speed in miles per hour?



3. An airplane flies 1914 miles in 2 3/4 hours. What is its average speed in miles per hour?



4. A train travels 102 miles in 2 5/6 hours. What is its average speed in miles per hour?


5. Tracy runs 26.2 miles in 3 hours and 45 minutes. What is her average pace in minutes and seconds?

Answers

Answer:

1. 636miles/hour

2. 53.65milesper hour

3.696miles per hour

4.37.09mikes per hour

5. 6.99miles/hour

Explanation:

you first convert all the time into improper fractions

then work out speed which is got by dividing distance with time

how many molecules are in SO4

Answers

Answer:

there are 5 molecules in SO⁴

A cup of coffee is made in the morning by pouring water ov er ground up coffee beans in a piece of paper and by collecting the brown liquid that comes through. Which techniques used

Answers

Answer: Filtration technique

Explanation:

The technique used here is called filtration.

Filtration,is a physical separation process that separates a mixture of an insoluble solid from a liquid ( acting as the solvent) by the use of a filter barrier that allows only the fluid to pass through.

In the case from the question,

As water is poured over the ground coffee, it forms a mixture of which the insoluble solid is the coffee grounds, the water is the liquid  and the filter barrier is the piece of paper  which allows only the brown  liquid coffee to pass through as the filtrate.

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