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2 years ago

True or False: The Ring of Fire is a section along the Atlantic Ocean where you have active volcanoes

Chemistry

2 answers:

Romashka [77]2 years ago

6 0

False because the Atlantic Ocean dose not have active volcanoes besides that’s a ocean so no

Scilla [17]2 years ago

6 0

False it’s the parific ocean that has active volcanoes

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What does the word subcellular mean

Lerok [7]

Answer:

the word subcellular means contained within a cell. at a level of organization lower than the cellular.

Explanation:

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3 years ago

If 115grams of a substance reacts with 84grams of another substance, what will be the mass of the products after the reaction?

AysviL [449]

Isn’t it 115+84 so 199

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3 years ago

"A crosslinked copolymer consists of 57 wt% ethylene (C2H4) repeat units and 43 wt% propylene (C3H6) repeat units. Determine the

ch4aika [34]

Explanation:

Percentage ethylene by weight = 57%

Percentage propylene by weight = 43%

Suppose in 100 grams of polymer:

Mass of ethylene = 57 g

Mass of propylene = 43 g

Moles of ethylene = $\frac{57 g}{28 g/mol}=2.036 mol$

Moles of propylene = $\frac{43g}{42g/mol}=1.024 mol$

1 mole = $N_A =6.022\times 10^{23}$ molecules/ atoms

Units of ethylene = $2.036 mol\times N_A$

Units of propylene = $1.024 mol\times N_A$

a) Fraction of ethylene units:

$=\frac{2.036 mol\times N_A}{2.306 mol\times N_A+1.024 mol\times N_A}=\frac{509}{765}$

b ) Fraction of propylene units:

$=\frac{1.024mol\times N_A}{2.306 mol\times N_A+1.024 mol\times N_A}=\frac{256}{765}$

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3 years ago

Is this equation balanced?<br><br>nh4oh+hc2h3o2=nh4c2h3o2+h2o

Usimov [2.4K]

Answer:

It IS balanced

Explanation:

3 0

3 years ago

Read 2 more answers

The density of benzene at 15 ∘C is 0.8787 g/mL. Calculate the mass of 0.1200 L of benzene at this temperature.

Pavel [41]

Use the density to convert volume into mass.

since the density is in g/ml and the volume was given in Liters, we need to first convert the Liters into mililiters. just multiply by 1000 or move the decimal three times.

0.1200 Liters= 120.0 mL

120.0 mL (0.8787 grams/ 1 mL)= 105 grams

3 0

3 years ago

Read 2 more answers