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dimulka [17.4K]
3 years ago
13

Is calcium oxide a Element or compound or mixture?

Chemistry
2 answers:
yawa3891 [41]3 years ago
8 0

Answer:

The answer is compound

Explanation:

Zolol [24]3 years ago
3 0

Answer:

compound

Explanation:

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Hi guys will u please help me Idk thanks
Wewaii [24]
<h2>Answer:</h2>

<em>magnetic field lines are always directed in S_N direction.</em>

<em> hope this will help you </em>

5 0
3 years ago
Which statement is not included in John Dalton's modern theory of the atom?
Harman [31]

Answer:

atoms of different elements combine and form new elements

5 0
3 years ago
QUE VENTAJAS TIENE PARA LA PLANTA Y EL CULTIVO LA PERMANENCIA DEL POTASIO COMO CATION MONOVALENTE (K+)?
yarga [219]

Explanation:

Son muchos los beneficios del catión monovalente (K+) en las plantas y cultivos, mencionaremos algunos:

-Interviene en el proceso de apertura y cierre de los estomas; el catión (k+) ayuda a que los estomas puedan realizar correctamente  el proceso de la fotosíntesis es decir  la absorción del dióxido de carbono para producir oxígeno y agua; este proceso ayuda a que la planta pueda fabricar su propio alimento es decir transformar materiales inorgánicos en orgánicos como azúcares y carbohidratos que son aprovechables por la planta para realizar diversas funciones catalíticas como la respiración celular,la fosforilación y la síntesis de proteínas; este proceso también contribuye a que la planta pueda almacenar y retener suficiente agua lo cual ayuda a evitar el estrés hídrico en la planta.

Por lo tanto si la planta tiene una buena concentración de potasio como catión monovalente(k+); es posible que tenga un buen crecimiento y desarrollo radicular ,así mismo la calidad de los cultivos será muy buena,seran cultivos muy nutritivos y saludables. Algunos cultivos que necesitan una alta cantidad de potasio son los cítricos y el banano.

6 0
3 years ago
an element has 8 protons and 8 nuetrons in its nucleus. what is the atomic number and atomic mass of this element​
Xelga [282]

Answer:

Atomic number= 8

Atomic mass= 16

Explanation:

You can determine the atomic number by counting the number of protons. Atomic mass is determined by adding the protons and neutrons together.

Hope this helps!

5 0
3 years ago
How many moles of helium gas would it take to fill a balloon with a volume of 1000.0 cm 3when the temperature is 32 o C and the
vekshin1

The number of moles of the gas is 0.0396 moles.

<h3>What is the ideal gas equation?</h3>

The ideal gas equation is used to determine the relationship between the variables; temperature, pressure, volume and the number of moles of a gas. We know that the gas laws are used to understudy the parameters that has to do with gases.


Thus;

Volume = 1000.0 cm 3 or 1 L

Gas constant = 0.082 atmLK-1Mol-1

Temperature = 32 o C + 273 K = 305 K

Pressure =  752 mm Hg  or 0.99 atm

Thus;

PV = nRT

n = PV/RT

n =  0.99 atm *  1 L/0.082 atmLK-1Mol-1 * 305 K

n = 0.0396 moles

Learn more abut ideal gas equation:brainly.com/question/4147359

#SPJ1

5 0
2 years ago
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