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Debora [2.8K]
4 years ago
13

What is the correct formula for copper(ii) oxide

Chemistry
1 answer:
Pani-rosa [81]4 years ago
6 0

Answer:

CuO

Explanation:

Copper(II) oxide is a metal oxide it has the formula CuO.  It has formula of copper(2+). Cupric oxide, or copper (II) oxide

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If the frequency of an FM wave is 8.85 × 107 hertz, what is the period of the FM wave?
Keith_Richards [23]
NAMASTE

HERE IS YOUR ANSWER:

\boxed{Frequecy = \frac{1}{time \: period} }

Frequency (given) = 8.85× {10}^{7}hz

time period =
\frac{1}{8.85 \times {10}^{7}}

= 0.112 × {10}^{-7}

= 1.12 × {10}^{-8}
7 0
3 years ago
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How many mL of 3.0M HCl are needed to make 300.0 mL of a 0.10M HCl?
nalin [4]

Answer:

V₁  = 10 mL

Explanation:

Given data:

Initial volume of HCl = ?

Initial molarity = 3.0 M

Final molarity = 0.10 M

Final volume = 300.0 mL

Solution:

Formula:

M₁V₁  =  M₂V₂

M₁ = Initial molarity

V₁  =  Initial volume of HCl

M₂ =Final molarity

V₂ = Final volume

Now we will put the values.

3.0 M ×V₁  =  0.10 M×300.0 mL

3.0 M ×V₁  = 30 M.mL

V₁  = 30 M.mL /3.0 M

V₁  = 10 mL

3 0
3 years ago
Which statement about matter is true?
Kay [80]

D. Matter is anything that is made of organic substances and is found on the earth.

7 0
4 years ago
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Liquid bromine is added to sodium iodide crystals
gulaghasi [49]

The following chemical reaction will occur:

Br₂ (l) + 2 NaI (s) → 2 NaBr (s) + I₂ (s)

Explanation:

Because the bromide (Br₂) have a higher reactivity than iodide (I₂) it is able the remove the iodide from its salts. So the bromide will react with sodium iodine (NaI) to produce sodium bromide (NaBr) and iodine.

The chemical reaction is:

Br₂ (l) + 2 NaI (s) → 2 NaBr (s) + I₂ (s)

where:

(l) - liquid

(s) - solid

Learn more about:

balancing chemical equations

brainly.com/question/13971935

#learnwithBrainly

6 0
3 years ago
The theoretical yield for a reaction is 55.9 g LiCl. The actual yield is 24.6 g LiCl. What is the percent yield of the reaction?
Alexxx [7]
% yield = actual yield divided by theoretical x 100
24.6 divided by 55.9 is 0.44
.44 x 100 =44%
C
6 0
4 years ago
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