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3 years ago

Lily is doing a science experiment with a substance in a sealed jar. At first,

Chemistry

1 answer:

Serhud [2]3 years ago

6 0

Answer:

Faster, and the substance will be a gas.

Explanation:

I'm quite not sure with it. But, I've tried my best. Since maybe the substance is liquid

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Neptune's Triton is being pulled closer and closer to the planet as it orbits. What will likely be a result of this gravitationa

Ksenya-84 [330]

Answer:

the planet's gravity will cause Triton to fly into Neptune

Explanation:

Gravitational force is a force of attraction between two bodies with considerable masses.

One of the mass tends to pull the other to it's center.

As the force of gravity between two bodies grow, the more massive body will be drawn to the other one.

The effect is that one body will eventually collide with the other.
Since the planet pulls very hard on its moon
On the long run, we can expect Triton to fly into Neptune in the foreseeable future.

3 0

2 years ago

During a laboratory experiment, 36.12 grams of Aboz was formed when O2 reacted with aluminum metal at 280.0 K and 1.4 atm. What

kvv77 [185]

Answer:

8.70 liters

Explanation:

3O₂+ 4Al → 2AI₂O₃

First we convert 36.12 g of AI₂O₃ into moles, using its molar mass:

36.12 g ÷ 101.96 g/mol = 0.354 mol AI₂O₃

Then we convert AI₂O₃ moles into O₂ moles, using the stoichiometric coefficients of the reaction:

0.354 mol AI₂O₃ * $\frac{3molO_2}{2molAl_2O_3}$ = 0.531 mol O₂

We can now use the PV=nRT equation to calculate the volume, V:

1.4 atm * V = 0.531 mol * 0.082 atm·L·mol⁻¹·K⁻¹ * 280.0 K

V = 8.708 L

5 0

2 years ago

Show the calculation of the mass (grams) of a 14.5 liter gas sample with a molecular weight of 82 when collected at 29°C and 740

mote1985 [20]

Answer:

In this conditions, the gaswll weight 46.74 g.

Explanation:

The idal gas law states that:

PV = nRT,

P: pressure = 740 mmHg = 0.97 atm

V: volume = 14.5 L

n: number of moles

R: gas constant =0.08205 L.atm/mol.K

T: temperature = 29°C = 302.15K

$n = \frac{PV}{RT} \\n = \frac{0.97x14.5}{0.082 x 302.15 } \\n = 0.57 mol$

1 mol gas ___ 82 g

0.57 mol gas __ x

x = 46.74 g

4 0

2 years ago

The molecular formula of a compound is C7H14O7. what is the empirical formula

nata0808 [166]

Empirical formula is the simplest way the molecular formula can be wrote so here 7 goes into all of these so it would be CH2O

6 0

2 years ago

Shale forms from tiny particles of which material?

miskamm [114]

Answer:

a. mica

Explanation:

6 0

2 years ago