?SiCl4(I) + ?H2O(I) = ?SiO2(S) + ?HCI(aq)

Chemistry

2 answers:

garik1379 [7]2 years ago

8 0

SiCl4(L) + 2H2O(L) —>> SiO2(s) + 4HCl(aq)

We need balanced elements on both sides, products and reactants. We see from inspection we need to balance Cl, H, and O on both sides, reactants and products. So by adding 2moleH2O we need to add 4HCl to balance.

docker41 [41]2 years ago

5 0

SiCl4 + 2H2O = SiO2 + 4HCl

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Mature elephants consume an average of 600 pounds of food per day. If an elephant

MAXImum [283]

Answer:

$\large \boxed{\text{4 600 000 kg or 4600 Mg}}$

Explanation:

1. Calculate the adult life

If the elephant is an adult from its 10th birthday until the day before its 56th birthday, its

Adult life = 55 - 10 + 1 = 46 yr

2. Convert years to days

$\text{Adult life} = \text{46 yr} \times \dfrac{\text{365.25 da}}{\text{1 yr}} = \text{16 800 da}$

3. Convert days to pounds of feed

$\text{Feed} = \text{16 800 da} \times \dfrac{\text{600 lb}}{\text{1 da}} = 1.01 \times 10^{7} \text{ lb}$

4. Convert pounds to kilograms and megagrams

$\text{Feed} =1.01 \times 10^{7} \text{ lb} \times \dfrac{\text{1 kg}}{\text{2.20 lb}} =\textbf{4 600 000 kg} = \textbf{4600 Mg}\\\\\text{The elephant will eat $\large \boxed{\textbf{4 600 000 kg or 4600 Mg}}$ of food.}$