1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AlladinOne [14]
3 years ago
13

I can't find the density of this question I need help

Chemistry
1 answer:
zaharov [31]3 years ago
4 0
Density is Mass divided by volume.
You might be interested in
7.The _____ theory of matter states that all particles of matter are in constant motion.
SashulF [63]
The kinetic energy theory of matter states that all particles of matter are in constant motion.
Kinetics has to do with some kind of movement, which is why this answer is the only plausible one. 
6 0
3 years ago
Read 2 more answers
When balancing equations does po4 counts as one element or on p and 4 o?
Radda [10]
As one element .because po4 is phosphate for e.g.: NaPO4
3 0
3 years ago
Read 2 more answers
Un globo lleno de helio tenia un volumen de 8.5 L en el suelo a 20°C y a una presión de 750 torr. Cuando se le soltó, el globo s
Ray Of Light [21]

Answer:

El volumen del gas era 12.95 L

Explanation:

Se relaciona la presión y el volumen mediante la ley de Boyle, que dice:

“El volumen ocupado por una determinada masa gaseosa a temperatura constante, es inversamente proporcional a la presión”

La ley de Boyle se expresa matemáticamente como:  P*V=k

Por otro lado, la Ley de Charles consiste en la relación que existe entre el volumen y la temperatura absoluta de una cierta cantidad de gas ideal, el cual se mantiene a una presión constante. Esta ley dice que cuando la cantidad de gas y de presión se mantienen constantes, el cociente que existe entre el volumen y la temperatura siempre tendrán el mismo valor:  

\frac{V}{T}=k

Por último, la Ley de Gay Lussac dice que la temperatura absoluta y la presión son directamente proporcionales. Es decir, cuando se mantiene todo lo demás constante, mientras suba la temperatura de un gas subirá también su presión. Y mientras la temperatura del gas baje, lo mismo ocurrirá con la presión:

\frac{P}{T}=k

Combinado las mencionadas tres leyes se obtiene:

\frac{P*V}{T} =k

Cuando se desean estudiar dos diferentes estados, uno inicial y una final de un gas, se puede aplicar:

\frac{P1*V1}{T1} =\frac{P2*V2}{T2}

Recordando que la temperatura debe usarse en grados Kelvin, conoces los siguientes datos:

  • P1: 750 torr
  • V1: 8.5 L
  • T1: 20°C= 293°K (siendo 0°C=273°K)
  • P2: 425 torr
  • V2: ?
  • T2: -20°C= 253 °K

Reemplazando:

\frac{750 torr*8.5 L}{293K} =\frac{425 torr*V2}{253 K}

Resolviendo:

V2=\frac{750 torr*8.5 L}{293K} *\frac{253 K}{425 torr}

V2= 12.95 L

<u><em>El volumen del gas era 12.95 L</em></u>

<u><em></em></u>

5 0
2 years ago
I need A through D, I have no idea on what I'm supposed to do
geniusboy [140]

a. 48.6 is magnesium and 32.0 is oxygen

b. 80.6

c. also 80.6

d. yes, because the product has equal mass to the reactants

3 0
3 years ago
How is energy in a washing machine being utilised and wasted?
7nadin3 [17]

Answer:

It depends on whether the setting is hot or cold .-.

Explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following is true regarding nominal and real GDP?
    12·1 answer
  • Which sequence has the states of matter listed from least to greatest kinetic energy!
    11·1 answer
  • Which of the following is separated by physical mean.?
    13·2 answers
  • How are chemical reactions related to to electrons
    11·1 answer
  • How many molecules and atoms of oxygen are present in 5.6 liters of oxygen (O2) at STP?
    15·2 answers
  • Do you think that scientists should continue to try to create super-heavy elements and expand the periodic table? Explain why or
    11·2 answers
  • Calculate the mass of 1.98 moles of Li2SO3
    7·1 answer
  • How many molecules are in 1 mole of H2O molecules?
    10·1 answer
  • The element antimony has two stable isotopes, antimony-121 with a mass of 120.90 amu and antimony-123 with a mass of 122.90 amu.
    15·1 answer
  • How many grams are in 2.0 × 1024 atoms of C?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!