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aleksklad [387]
3 years ago
10

Will has been told to check the oxygen level in a confined space, before workers are allowed to enter. Will should verify that t

he space has at least ____ % oxygen by volume.
Chemistry
1 answer:
loris [4]3 years ago
8 0
19.5%.

If you need a full explanation, let me know :]
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What is the mass of a titanium alloy that has a heat of fusion of 422.5 joules/gram and requires 2,960 joules of energy to melt
Marianna [84]

 The mass  of titanium alloy    is 7.01 g


 <u><em>calculation</em></u>

Q=mHF

where

Q(heat)= 2960 j

M(mass) = ?

Hf( heat  of fusion) = 422.5 j/g

make M the subject of the formula  by  diving both side of equation by Hf

M=Q/Hf

M= 2960 j/422.5 j/g = 7.01 g

3 0
3 years ago
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Imagine you are on a roller coaster. Imagine that you are riding a skateboard or running across a ball field. What are some clue
Alex787 [66]

✯Hello✯

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4 0
4 years ago
Fake answers will get your account banned. I need help please.
Nookie1986 [14]

The option that would be appropriate to model nuclear fission is disturbing a drop of water such that it breaks into smaller droplets

Nuclear fission refers to the splitting of a heavy nucleus into lighter nuclei owing to the bombardment of small particle.

The liquid drop model provides the most apt model for describing the concept of nuclear fission. In nuclear fission, the nucleus breaks due to the increase in repulsion between the nuclear charges.

As the size of the nucleus continues to increase, any little disruption will; result in the breaking up of the nucleus into smaller fragment called daughter nuclei.

Hence, the model of disturbing a drop of water such that it breaks into smaller droplets is the most apt description of nuclear fission.

Learn more: brainly.com/question/13440572

5 0
3 years ago
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What is the difference between saturated and unsaturated fats answers?
anyanavicka [17]
Saturated fats are when fatty acid contains carbon that are connected by a single bond. Unsaturated fats are when one or more carbons form a double bond with another carbon. 
5 0
4 years ago
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the recommended adult dose of Elixophyllin ® , a drug used to treat asthma, is 6.00 mg/kg of body mass. Calculate the dose in mi
Paladinen [302]

Answer:

\boxed{\text{452 mg}}

Explanation:

(a) Convert pounds to kilograms.

\text{Mass} = \text{ 166 lb} \times \dfrac{\text{453.59 g}}{\text{1 lb}} \times\dfrac{\text{1 kg}}{\text{1000 g}} = \text{75.30 kg}

(b) Calculate the dose

\text{Dose} = \text{ 75.30 kg body mass} \times \dfrac{\text{6.00 mg Elixophyllin}}{\text{1 kg body mass}} = \textbf{452 mg Elixophyllin}\\\text{The dose of Elixophyllin for a 166 lb person is $\boxed{\textbf{452 mg}}$}

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3 years ago
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