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kenny6666 [7]
3 years ago
6

Think of two organisms.

Chemistry
1 answer:
Alina [70]3 years ago
4 0

DNA is one and Grow and Develop i think i could be wong  let me know i can read up on it some more


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1 Aluminum reacts with oxygen to produce aluminum oxide, what is the chemical equation?​
Roman55 [17]

Answer:  Aluminum reacts with oxygen to produce aluminum oxide as follows: 4Al + 3O2 → 2Al2O3 a.

Explanation: I really really <u>hope</u> that was <u>helpful.</u>

4 0
2 years ago
The molarity of a 2 liter aqueous solution that contains 222.2 grams of dissolved calcium chloride ( CaCl2), expressed with two
sveta [45]

Answer:

The answer to your question is 1 M

Explanation:

Data

Molarity = ?

mass of CaCl₂ = 222.2 g

Volume = 2 l

Process

1.- Calculate the molar mass of CaCl₂

CaCl₂ = 40 + (35.5 x 2) = 40 + 71 = 111 g

2.- Calculate the moles of CaCl₂

                    111g of CaCl₂ ---------------- 1 mol

              222.2 f of CaCl₂  ----------------  x

                      x = (222.2 x 1) / 111

                      x = 222.2 / 111

                      x = 2 moles

3.- Calculate the Molarity

Molarity = moles / Volume

-Substitution

Molarity = 2/2

-Result

Molarity = 1

3 0
3 years ago
How many molecules are their in o.5 mole of H2o
Black_prince [1.1K]

Answer:

There are 6.022x10^23 molecules

3 0
3 years ago
According to the equation, 2 H2 + O2 --&gt; 2 H20, how many moles of oxygen are required to convert 12 moles of hydrogen to wate
DerKrebs [107]

Answer:

6 moles of oxygen, or 3O2.

Explanation:

I would build a proportion for this:

\frac{2(2)}{2}  =  \frac{12}{x}  \\ 4x = 24 \\ x = 6

5 0
3 years ago
Five more than two times the square root of a number is fifteen. What’s the number
ryzh [129]
The number is 25. The square root of 25 is 5 and 5x2 is 10 and then 10+5 is 15
7 0
3 years ago
Read 2 more answers
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