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vlabodo [156]
3 years ago
10

BRAINLIESIT IF CORRECT 4

Chemistry
2 answers:
spayn [35]3 years ago
6 0

Answer:

1. a medium

2.longitudinal

Zarrin [17]3 years ago
3 0

Answer:

the answer is vacum of space

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An empty graduated cylinder weighs 55.26 g. When filled with 50.0 mL of an unknown liquid, it weighs
marysya [2.9K]

Answer:

.743 g/mL

Explanation:

Hopefully this helps :)

5 0
3 years ago
A cobalt atom has 27 protons. What number of neutrons would make a cobalt
tamaranim1 [39]
The answers is 54 because 27 protons times theses nuts = 54
7 0
3 years ago
calculate how many Liters of 0.50 M silver nitrate solution you will need to provide the 2.4x10^-3 moles of silver nitrate
wlad13 [49]

Answer:

4.8x10⁻³ Liters are required

Explanation:

Molarity is an unit of concentration in chemistry defined as the ratio between moles of solute (In this case, silver nitrate) and liters of solution.

The 0.50M solution contains 0.50 moles of silver nitrate per liter of solution.

To provide 2.4x10⁻³ moles Silver nitrate are required:

2.4x10⁻³ moles * (1L / 0.50 moles) =

<h3>4.8x10⁻³ Liters are required</h3>
8 0
3 years ago
Si en un planeta la presión atmosférica es mayor que 5,1 atm terrestres, los habitantes podrían nadar en ríos de dióxido de carb
Sphinxa [80]

Answer:

Los habitantes del planeta con una atmósfera superior a 5,1 atm de la Tierra, no estarían nadando en ríos de dióxido de carbono líquido

Explanation:

De las tablas de datos termodinámicos, la presión a la que el vapor de dióxido de carbono está en equilibrio con su estado líquido a una temperatura ambiente de 25 ° C es 6,401 kPa, lo que equivale a 63,17296 atm.

Por lo tanto, a una presión de 5.1 de la atmósfera terrestre, el dióxido de carbono es completamente gaseoso y los habitantes del planeta con una presión atmosférica de 5.1 atm de la Tierra todavía observarían solo hidrógeno gaseoso y no estarían nadando en ríos de dióxido de carbono líquido.

5 0
3 years ago
What is the total mass of kno3 that must be dissolved in 50. Grams of h2o at 60.°c to make a saturated solution?
Trava [24]

Answer:

55 g

Explanation:

First, we have to look for the solubility of KNO₃ at 60°C, considering that the solubility is the maximum amount of solute that can be dissolved in 100 grams of solvent, that is, the concentration of a saturated solution.

The solubility of KNO₃ at 60°C is 110.0 g of KNO₃ per 100 g of water. The mass of KNO₃ that must be dissolved in 50 g of water to make a saturated solution is:

50 g H₂O × (110.0 g KNO₃/100 g H₂O) = 55 g KNO₃

6 0
3 years ago
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