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Kryger [21]
3 years ago
15

Which of the following is a statement of Hess's law?

Chemistry
1 answer:
attashe74 [19]3 years ago
7 0

Answer:

C

Explanation:

the enthalpy of reaction is independent of the reaction path

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H2SO4, sulfuric acid, contains three different types of atoms: hydrogen (H), sulfur (S), and oxygen (O). Each of these atoms rep
romanna [79]

Answer: Different elements. H2SO4 is a compound.

Explanation:

Element are the simplest substances and can't be broken down. Is a substance whose atoms all have the same number atomic number. The atomic number indicates the number of protons in the nucleus, and in a neutral atom it has the same number of neutrons. Therefore, for example, hydrogen is an element because it is an atom with a certain atomic number.

On the other hand, a compound is a mixture composed of two or more different elements. So, H2SO4 is made of three different elements, then it is a compound.

7 0
4 years ago
Answer the following questions in one word.
Elis [28]

Answer:

its a feeling accompanied by different situation.

Explanation:

For instance; when we are having a lot of problems,obstacles, hindrances at the path of success we feel pain. Secondly,When we are left by someone then we feel sad.last but not the least while we are getting a lot of love from someone whom we love a lot, at this moment we can feel a state of happiness.

4 0
4 years ago
Y'all help me please!!!
marysya [2.9K]
The answer is b, the moon is smaller and has less gravity. hope this helps

7 0
3 years ago
An oil has a density of .78g/ml and a mass of 3.6kg. what is the volume of the oil?
erma4kov [3.2K]

Answer:

v = 4.62 L

Explanation:

Necessary Conversion:

1000 g = 1 kg

Density of Oil in kg/mL:

0.78g/ml * (1 kg/1000 mL) = 0.00078 kg/mL

Density Equation (Heart with an arrow through it):

d = m/v

Rewrite to Find Volume (Multiply Both Sides by v/d):

v = m/d

Substitue m and d to Find v:

v = (3.6 kg)/(0.00078 kg/mL)

v = 4615.38 mL

Convert to More Suitable Units (Liters) by Dividing by 1000:

v = 4.62 L

:D

5 0
2 years ago
What is the mass of sulfuric acid in 50.0 mL of a 6.00 M solution?
Evgesh-ka [11]

Answer:

The answer to your question is 29.4 grams of H₂SO₄

Explanation:

Data

mass of sulfuric acid

volume = 50 ml

Molarity = 6 M

Process

1.- Write the formula of Molarity

Molarity = moles / volume

-Solve for moles

moles = Molarity x volume

-Substitution

moles = 6 x 0.05

-result

moles = 0.3

2.- Calculate the molar mass of Sulfuric acid

H₂SO₄ = (1 x 2) + (32 x 1) + (16 x 4) = 2 + 32 + 64 = 98 g

3.- Calculate the mass in the solution

                 98 g of H₂SO₄ ---------------- 1 mol

                    x                   ----------------- 0.3 moles

                            x = (0.3 x 98) / 1

                            x = 29.4 grams of H₂SO₄

6 0
3 years ago
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