1 year ago

Which statement describes the ocean floor?

Chemistry

1 answer:

Keith_Richards [23]1 year ago

4 0

Answer: C

Explanation: The ocean floor is largely unexplored so no one knows what it is like.

You might be interested in

What type of molecule is shown below?

stealth61 [152]

The type of molecule that is shown is D. Alcohol

8 0

2 years ago

Where do the lemons go after harvested? What gets done with lemons?

Temka [501]

Answer:

Lemon juice,lemonade

Explanation:

5 0

2 years ago

Rank the following in order of increasing (lowest to highest) reactivity:

choli [55]

Answer:

a) Li<Na<Rb

b) P<S

c) Rn<Xe

d) Hg<W<Cs

4 0

2 years ago

Coke is an impure form of carbon that is often used in the in- dustrial production of metals from their oxides. If a sample of c

steposvetlana [31]

Answer:

The mass of coke needed to react completely with 1.0 ton of copper(II) oxide is 0.794 Ton.

Explanation:

$2CuO+C\rightarrow 2Cu+CO_2$

1 Ton = 907185 grams

Mass of copper oxide = 1.0 Ton = 907185 grams

Moles of copper oxide = $\frac{907185 g}{79.55 g/mol}=11,403.95 moles$

According to reaction, 2 moles of copper oxide reacts with 1 mole of carbon.

Then 11403.95 moles of copper oxide will react with:

$\frac{1}{2}\times 11403.95 mol=5,701.98 mol$ of carbon

Mass of 5,701.98 moles of carbon:

$5,701.98 mol\times 12 g/mol=68,423.75 g$

Mass of coke = x

Mass of carbon = 68,423.75 g

Percentage of carbon in coke = 95%

$95\%=\frac{68,423.75 g}{x}\times 100$

$x=720,250.09 g=0.794 Ton$

The mass of coke needed to react completely with 1.0 ton of copper(II) oxide is 0.794 Ton.

3 0

2 years ago

Find the value of 6 +<br>6 +<br>6 + 16 + vo

AVprozaik [17]

Answer:

Explanation:

the value is 6 because its an even number

7 0

2 years ago