3 years ago

How many water molecules are thrre in this equation CH4 + 2O2 = 2H2O + ÇO2

Chemistry

1 answer:

Usimov [2.4K]3 years ago

8 0

i am pretty sure it is 4

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Write the formula for: strontium carbonate

aleksandr82 [10.1K]

SrCO3

Sr=2 charge
CO3=2 charge from polyatomic chart

7 0

2 years ago

How many points should be plotted when creating a scatterplot from the table of values below?

Fed [463]

Answer:

I think the correct answer would be 6.

Hope that was helpful.Thank you!!!:)

8 0

4 years ago

Given the density of iron (Fe) is 7.87 g/cm3, determine the mass of iron (in grams) in a rectangle block with the dimensions of

guapka [62]

Answer:

$m=14,105.71 g Fe$

Explanation:

Hello,

In this case, the first step is to compute the volume of the block considering the length, height and width:

$V=L \times W \times H =12.5 in\times 3.50 in \times 2.50 in =109.375 in^3$

Then, we compute the volume in cubic centimetres:

$V=109.375in^3\times \frac{16.3871 cm^3}{1in^3} =1792.34cm^3$

Finally, as the density is given by:

$\rho =\frac{m}{V}$

We solve for the mass:

$m=\rho \times V= 7.87\frac{g}{cm^3} \times 1792.34 cm^3\\\\m=14,105.71 g Fe$

Best regards.

8 0

3 years ago

Your favorite fruit is on sale at a supermarket for $1.99/pound. You would like to spend all the money you have in your pocket,

evablogger [386]

1) The unit in the question is $/pound.

2) The unit of the wanted information is pounds

According to the question;

1 pound of the fruit is sold at $1.99

x pounds of the fruit will be sold at $10.80 (remember that you are supposed to spend all the money in your pocket)

So;

x = 1 pound * $10.80/$1.99

x = 5.32 pounds of fruit.

Learn more; brainly.com/question/6988886

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3 years ago

The temperature of a sample of iron increased by 23.1 °C when 267 J of heat was applied. What is the mass of the sample?

hjlf

Answer:

Explanation:

go answer my question pls

5 0

3 years ago

Read 2 more answers