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jek_recluse [69]

3 years ago

11

Mg + Fe2O3 -> MgO + Fe

1 answer:

Anika [276]3 years ago

7 0

Answer:

Your correct answer is A. 1,2,1,2

Explanation:

Please mark brainliest!

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9. A student observed the following reaction:

Gelneren [198K]

Answer:

The substance that remained on the filter paper is Al(OH).

Explanation:

Filter paper is the substance that is used in laboratory to separate the solid objects. It doesn't filter aqueous and gaseous products.
So in our experiment the product formed is aluminum hydroxide Al(OH) and sodium chloride (NaCl).
Between two products, sodium chloride is in aqueous form as indicated in the question. So it wont remain in the filter paper.

Hence aluminum hydroxide being only solid product remains on the filter paper.

8 0

3 years ago

The mass of an average blueberry is 0.75 g and the of am automoblie is 2.0 x 10 to the 3 Kg. Find the number of automobiles whos

Paul [167]

Answer : The number of automobiles needed are, $2.26\times 10^{17}$

Explanation :

First we have to calculate the mass of blueberries.

As, 1.0 mole of blueberries contains $6.022\times 10^{23}$ blueberries

So, 0.75 grams of blueberries contains $0.75g\times 6.022\times 10^{23}=4.52\times 10^{23}g$ blueberries

Mass of blueberries = $4.52\times 10^{23}g$

Now we have to calculate the number of automobiles needed.

Number of automobiles needed = $\frac{4.52\times 10^{23}g}{2.0\times 10^{3}kg}$

Number of automobiles needed = $\frac{4.52\times 10^{23}g}{2.0\times 10^{3}\times 10^{3}g}$

Number of automobiles needed = $2.26\times 10^{17}$

Thus, the number of automobiles needed are, $2.26\times 10^{17}$

8 0

3 years ago

Which compound is an exception to the octet rule?

slavikrds [6]

Answer:

the answer is ClF3 on edge

Explanation:

8 0

3 years ago

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Which of the following is an example of quantitative data?

Alexxandr [17]

I think the answer is choice b hope that helps u

8 0

4 years ago

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How many moles are in 3.0x10^24 molecules of water

Daniel [21]

<h3>I HOPE MY ANSWER HELPS YOU;))</h3>

5 0

3 years ago

Read 2 more answers