Answer:
197 grams
Explanation:
Without taking into account the number of sig figs you have for your values, you can say that the answer will once again be
197 g of aluminium bromide.
(I hope this is right)
Answer:
Some (most) has two tails.You can see the tails when the comets go near the sun.There are two types of comet tails,dust and gas ion. Comet tails can be over 600,000 miles (1 million km) long.Because the comet dust particles are so small, they are pushed away from the Sun into a long tail.They are made of ices, such as water, carbon dioxide, ammonia and methane, mixed with dust.There are so much more to discover about comets (which I might not know).
Hope that was helpful.Thank you!!!
Answer:
and 
Explanation:
Our goal for this question is the calculation of the number of moles of the molecules produced by the reaction of hydrazine (
) and <u>oxygen</u> (
). So, we can start with the <u>reaction</u> between these compounds:
Now we can <u>balance the reaction</u>:
In the problem, we have the values for both reagents. Therefore we have to <u>calculate the limiting reagent</u>. Our first step, is to calculate the moles of each compound using the <u>molar masses values</u> (32.04 g/mol for
and 31.99 g/mol for
):


In the balanced reaction we have 1 mol for each reagent (the numbers in front of
and
are 1). Therefore the <u>smallest value would be the limiting reagent</u>, in this case, the limiting reagent is
.
With this in mind, we can calculate the number of moles for each product. In the case of
we have a <u>1:1 molar ratio</u> (1 mol of
is produced by 1 mol of
), so:

We can follow the same logic for the other compound. In the case of
we have a <u>1:2 molar ratio</u> (2 mol of
is produced by 1 mol of
), so:

I hope it helps!
I believe it means idea because a Web is out line to a a more structured idea
<span> 2KCl(s) => 2K(s) + Cl2(g) </span>is correctly balanced. Becuase <span>2 K, 2 Cl on the left, and 2 K, 2 Cl on the right.</span>