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ivann1987 [24]
3 years ago
12

What is the density of an object with 525 grams and a volume of 15cm3?

Chemistry
2 answers:
Hunter-Best [27]3 years ago
7 0

Answer: 35 g/cm

Explanation:

Density equals mass over volume. 525 divided by 15 is 35

victus00 [196]3 years ago
6 0

Answer:

35 g/cm

Explanation:

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adell [148]

Answer:

You are mostly correcet but im pretty sure that the nonmetals are brittle because they can break easily

Explanation:

5 0
3 years ago
What substances can be separated into simpler substances only by chemical means?
Mnenie [13.5K]

A compound is a substance that can be separated into simpler substances only by chemical means.

6 0
3 years ago
For the reaction of hydrogen with iodine
fenix001 [56]

Answer:

r_{H_2} = \frac{-1}{2} r_{HI}

Explanation:

Hello!

In this case, considering the given chemical reaction:

H_2(g) + I_2(g) \rightarrow 2HI(g)

Thus, by applying the law of rate proportions, we can write:

\frac{1}{-1} r_{H_2} = \frac{1}{-1}r_{i_2} = \frac{1}{2} r_{HI}

Whereas the stoichiometric coefficients of reactants are negative due their disappearance and that of the product is positive due to its appearance. In such a way, when we relate the rate of disappearance of hydrogen gas to the rate of formation of hydrogen iodide, we obtain:

r_{H_2} = \frac{-1}{2} r_{HI}

Best regards!

8 0
3 years ago
What is the total number of liters of SO3 produced when 32.0 of SO2 reacts completely
ahrayia [7]
Write  the   chemical  equation   for  reaction
that  is  
2SO2+O2  --->2SO2

find  the   moles  of  SO2   used  =  moles=mass/molar mass  of  so2

=  32g/80g/mol=0.4 moles

by  use  of  reacting  ratio  between  SO2   and  SO3   which   is   2:2  therefore  the  moles  of  so3  is  also =  0.4  moles

STP  1 mole  =  22.4L.
what  about  0.4moles

= 0.4 /1 x22.4=8.96 liters
4 0
3 years ago
Describe the change that you made that led to the decrease in the size of the greenleaf population. Explain why the change led t
slavikrds [6]

Answer:

DO YOU STILL NEED HELP?

Explanation:

3 0
3 years ago
Read 2 more answers
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