3 years ago

Estado de oxidación de doro

Chemistry

1 answer:

ad-work [718]3 years ago

3 0

Answer:

Entonces, ¿cuál es tu pregunta? No veo una foto

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(marking brainliest!) could someone please help me with these mcqs :/

Shalnov [3]

1. Is a (primary)
2. Is 2 (c)
3. Not sure sorry ✨
4. HBr (b)

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3 years ago

Write the formulas for the following ionic compounds: (a) sodium oxide, (b) iron sulfide (containing the Fe2+ ion),(c) cobalt su

Inga [223]

Answer:

Explanation:

a) Na₂O

b) FeS

c)Co₂(SO₄)₃

d) BaF₂

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3 years ago

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Can someone tell me if these are right? I am supposed to be decoding this for my escape room but it seems to be wrong.

Anettt [7]

Answer:

Q1 is A.

Q2 is right

Q3 is D.....I dont

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6 0

3 years ago

If you breathe out 0.3 moles of carbon dioxide, how many molecules of carbon dioxide did you breathe out?

pochemuha

Explanation:

1 mole of C molecules contain=6.023×10^23

0.3 moles of C=6.023×10^23/1×0.3

=1.8×10^23 of C molecules

sorry..not sure

4 0

3 years ago

A 100 gram block is placed on a scale that is known to have a 12% error. What will the scale read?

sesenic [268]

The scale will read <u>112 grams.</u>

Why?

Since we already know the percent error of the scale (12%) and we also know the mass of the block that is placed on the scale, we can calculate what will be the read of the scale by using the following formula:

$ScaleRead=100g+(100g*\frac{12}{100})=100g+(100g*0.12)=100g+12g\\\\ScaleRead=112g$

We can see that the scale will read 112 grams.

Let's verify that we are right by using the following formula to verify if the obtained value for the scale read will be 12%:

$PercentError=\frac{ActualValue-RealValue}{RealValue}*100=\frac{112g-100g}{100g}*100\\\\PercentError=\frac{12g}{100g}*100=0.12*100=12(percent)$

Hence, we can see that the scale will read <u>112 grams.</u>

Have a nice day!

7 0

4 years ago

Estado de oxidación de doro​

Estado de oxidación de doro