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4 years ago

15

HELP QUICK!!

2 answers:

tester [92]4 years ago

7 0

Answer:

(a).

Explanation:

They form whole-number ratios in a compound.

For example NaCl, Fe2O3.

worty [1.4K]4 years ago

4 0

I believe it’s A, they form whole-number ratios in the compound

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Which represents a deletion of a section of the DNA shown here?

luda_lava [24]

The answer for that would be C. this is because it is the only one where a base of the DNA was deleted. A. added another base to it, B. was exactly the same, and D. was a mutation of the DNA because it changed one part of it
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3 years ago

If a flame is yellow is it considered dirty or clean?And to make it blue do you add or take away air?

Step2247 [10]

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3 years ago

The heat of vaporization ΔHv of dichloromethane CH2Cl2 is 28.0 /kJmol . Calculate the change in entropy ΔS when 3.3g of dichloro

ella [17]

Answer:

$\Delta _VS=3.48x10^{-3}kJ=3.48J$

Explanation:

Hello,

In this case, the change in the entropy, by knowing the change in the enthalpy and the temperature for a vaporization process is given by:

$\Delta _VS=\frac{\Delta _VH}{T_V}$

Thus, we start by computing the change in the enthalpy for the 3.3g of dichloromethane as shown below:

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5 0

3 years ago

Which of these do scientists use to study the world around them?

labwork [276]

The answer is the scientific method

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3 years ago

Read 2 more answers

Show the relationship of number of moles and volume in Avogadro's law using data. Write your calculations and answer on a separa

leonid [27]

Answer:

See below ~

Explanation:

The calculated values of V/n :

⇒ 1.5/0.3 = 5

⇒ 3/0.6 = 5

⇒ 4.5/0.9 = 5

⇒ 6/1.2 = 5

⇒ 7.5/1.5 = 5

1. From this we understand that the calculated values of V/n remain constant, equal to <u>5</u> in this case.

2. The volume-mole graph will be a straight line passing through the origin. (Attached below)

7 0

2 years ago