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Brilliant_brown [7]
4 years ago
5

A compound is a pure substance. Which of the following is used to represent a compound?

Chemistry
1 answer:
Airida [17]4 years ago
7 0
The answer would be A
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Calculate the pressure (in kpa) of 1.5 mole of helium gas at 354 k when it occupies a volume of 16.5l.
3241004551 [841]

Answer:

267.57 kPa

Explanation:

Ideal gas law:

PV = n RT        R = 8.314462    L-kPa/K-mol

P (16.5) = 1.5 (8.314462)(354)       P = 267.57 kPa

8 0
2 years ago
What is the [H+] if the pH of a<br> solution is 7.60?<br> [H+] = [? ] × 10¹2]
stich3 [128]

Answer:

0.000000025

Explanation:

[H+]=10^-pH

7 0
2 years ago
Order the terms according to the path followed by oxygen during cellular respiration.​
MArishka [77]

Answer:

Outside air

Nose

Lungs

Bloodstream

Cell

Explanation:

We breathe in oxygen from the outside air in through our nose and it travels to our lungs. Inside our lungs, we have Avioli's that diffuse oxygen into our bloodstream and the bloodstream helps the oxygen travel into our cells.

Hope this helps :)

8 0
3 years ago
How to balance barium and oxygen yield barium oxide
olga55 [171]
Barium : Ba^{+2} with +2 being the charge
Oxygen : O^{-2} with -2 being the charge

The given equation can be written as:
Ba + O = BaO

Since the sum charges of Barium and Oxygen equals 0, there is no need to add subscripts.

Both Ba and O appear on the left and right side of the equation once, so there is no need to add a coefficient.

Ba + O = BaO is balanced
4 0
3 years ago
If 4 miles of sodium react, how many moles of chlorine gas will react? 2Na + Cl2 ---&gt; 2NaCl
larisa [96]
2 mole Na needs 1 mole Cl2
4 mole Na = 2 mole Cl2
8 0
3 years ago
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