3 years ago

Which is produced in a synthesis reaction?

Chemistry

2 answers:

expeople1 [14]3 years ago

3 0

Answer:

Single compound

Explanation:

trust

vichka [17]3 years ago

3 0

The answer is simple compound.

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The speed of a car is 16 meters per second. What is this speed in miles per hour? What is

Dovator [93]

Conversion Factors:

1.61 km = 1 mile

60 sec = 1 min

60 min = 1 hour

Use dimensional analysis to solve.

$=\frac{16\ meters}{1\ second}$ × $\frac{1\ km}{1000\ meters}$ × $\frac{1 mile}{1.61\ km}$ × $\frac{60\ seconds}{1\ min}$ × $\frac{60\ min}{1\ hour}$

$=35.77639752$

= 36 miles/hour

If done properly, you should be left with the units miles/hour

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3 years ago

Fill in the blank. The amount which an object accelerates

KATRIN_1 [288]

I think the answer is force

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3 years ago

A powder sample weighing 250 g and having a surface area of 1 m2/g is dispersed in 1 L of water. After 10 minutes, 0.4 g of the

lisabon 2012 [21]

Answer:

$K = 2.64 * 10^{-8}$

$15 \frac{5}{8}$ hours

Explanation:

Given

Surface Area (S) of 250 grams of powder sample $= 250$ square meter.

$S = 2500000$ square centimeter

$V\frac{dC}{dT} = 0.40$ grams/minute

$V\frac{dC}{dT} = \frac{dM}{dT} = \frac{0.40*60}{10} = 0.66$ mg per second

$C_s = 0.01$ gram per cubic meter $= 10$ mg/ml

$\frac{dM}{dT} = K SC_s$

$0.66 = K* 2500000* 10\\$

$K = 2.64 * 10^{-8}$ cm /sec

b) Time taken

Time taken to sink

$\frac{10*60}{0.4} * 37.5 = 56,250$

Time in hours

$15 \frac{5}{8}$ hours

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3 years ago

A compound with the empirical formula ch2 has a molar mass of 98 g/mol what is the molecular formula for this compound ?

madam [21]

Approximate molecular masses:
Molecular mass of C = 12
Molecular mass of H = 1

Let n = moles required for CH₂.
Then
nCH₂ = 98
n(12 + 2*1) = 98
14n = 98
n = 7

Answer: The molecular formula is 7CH₂

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3 years ago

I need to know how to find atoms on a periodic table.

Juli2301 [7.4K]

Answer:

you get atoms number left down the element example hydrogen has 1 atoms number and mass number.

7 0

3 years ago