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allsm [11]
3 years ago
10

Two or more elements chemically combined make a?

Chemistry
1 answer:
In-s [12.5K]3 years ago
5 0
Tqo or more elements combine to make a compound.
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Willie has fewer than normal bacteria in his gut microbiome. How will this affect his health?
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Indegestion I believe as there isn't as much bacteria to break down his food.

Explanation:

Tbh, dont complain if you don't like a food, because when you chew it, its gonna turn into some white mush anyways, and when it comes out, its brown.

Dont blame me, blame your tooth.

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The act of changing something but not being able to change it back
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it's the last one because it's depended on the rock layers

8 0
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(ASAP) 25 cm cubed of the champagne were placed in a conical flask. Describe how the volume of sodium hydroxide solution needed
Zielflug [23.3K]

Answer:

in a conical flask. Describe how the volume of sodium hydroxide solution needed to react completely with the weak acids in 25cm cubed of this champagne can be found by titration, using phenolphthalein indicator.

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3 years ago
What is the volume of 0.80 grams of O2 gas at stp?
sergey [27]

<u>Answer: </u>The volume occupied by O_2 at STP is 0.56 L.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

We are given:

Given mass of oxygen = 0.80 g

Molar mass of oxygen = 32 g/mol

Putting values in above equation, we get:

\text{Moles of oxygen}=\frac{0.80g}{32g/mol}=0.025mol

<u>At STP:</u>

1 mole of a gas occupies 22.4 L of volume.

So, 0.025 moles of oxygen gas will occupy = 22.4\times 0.025=0.56L of volume.

Hence, the volume occupied by O_2 at STP is 0.56 L.

4 0
4 years ago
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