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Alekssandra [29.7K]

2 years ago

12

Identify ways to reduce the risk of liquid bumping while heating.

1 answer:

postnew [5]2 years ago

7 0

The most common way of preventing bumping is by adding one or two boiling chips to the reaction vessel. However, these alone may not prevent bumping and for this reason it is advisable to boil liquids in a boiling tube, a boiling flask, or an Erlenmeyer flask.

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Nuclear power plants use a fission reaction of uranium to generate heat to power a generator. A fission reaction is a chain reac

LekaFEV [45]

ANSWER
B.

Explanation : it’s B because the control rods used are usually made of boron which boron is a non fissile material hence won’t undergo fission when bombarded or collided with neutrons.

7 0

1 year ago

Explain why the metals conduct electricity.

aleksley [76]

Answer:

Metals conduct electricity because they have free Electrons in them which helps the current to move eaisily

6 0

2 years ago

What is the density of a sample of a substance with a volume of 120ml<br> and a mass of 90g?

tigry1 [53]

Answer:

<h3>The answer is 0.75 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass = 90 g

volume = 120 mL

We have

$density = \frac{90}{120} = \frac{9}{12} = \frac{3}{4} \\$

We have the final answer as

<h3>0.75 g/mL</h3>

Hope this helps you

6 0

2 years ago

If 120.3 mL of water is shaken with oxygen gas at 2.1 atm, it will dissolve 0.0043 g O2. Estimate the Henry's law constant for t

nikklg [1K]

<u>Answer:</u> The Henry's law constant for oxygen gas in water is $1.702\times 10^{-5}g/mL.atm$

<u>Explanation:</u>

To calculate the molar solubility, we use the equation given by Henry's law, which is:

$C_{O_2}=K_H\times p_{O_2}$

where,

$K_H$ = Henry's constant = ?

$C_{O_2}$ = solubility of oxygen gas = $0.0043g/120.3mL$

$p_{O_2$ = partial pressure of oxygen gas = 2.1 atm

Putting values in above equation, we get:

$0.0043g/120.3mL=K_H\times 2.1atm\\\\K_H=\frac{0.0043g}{120.3mL\times 2.1atm}=1.702\times 10^{-5}g/mL.atm$

Hence, the Henry's law constant for oxygen gas in water is $1.702\times 10^{-5}g/mL.atm$

7 0

2 years ago

Some chemical factories make hydrogen gas (H2) using a process called steam methane reforming. In this process, methane (CH4) co

erica [24]

Answer:

steam and methane

Explanation:

5 0

2 years ago