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4 years ago

What is a Scientific law

1 answer:

6 0

A scientific law is a statement based on repeated experimental observations that describes some aspects of the universe. A scientific law always applies under the same conditions, and implies that there is a causal relationship involving its elements.

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ILL GIVE BRAINLISTS!!!!!!

8_murik_8 [283]

I think A would be the correct answer to this question.

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3 years ago

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PLEASE HELP IF YOU CAN

Kruka [31]

I'm not sure but for those who can help:

Skeleton equation: It's neutralization because acid+base.

HCl + NaOH => H2O + NaCl

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4 years ago

Which compound contains both sigma and pi bonds

Misha Larkins [42]

Any compound with multiple covalent bonds

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3 years ago

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The thiocyanate polyatomic ion, SCN-, is commanly called a pseudohalogen because it acts very much like halide ions. For example

harina [27]

Answer:

A) $\frac{1mol(SCN)_{2}}{2molNaSCN}$

B) 0.025 mol (SCN)₂

C) 2 mol (SCN)₂

D) $\frac{1molMnSO_{4}}{2molH_{2}SO_{4}}$

E) 3.5504 mol H₂SO₄

Explanation:

2NaSCN +2H₂SO₄ + MnO₂ → (SCN)₂ + 2H₂O + MnSO₄ + Na₂SO₄

A) A conversion factor could be $\frac{1mol(SCN)_{2}}{2molNaSCN}$ , as it has the units that we want to convert to in the numerator, and the units that we want to convert from in the denominator.

B) 0.05 mol NaSCN * $\frac{1mol(SCN)_{2}}{2molNaSCN}$ = 0.025 mol (SCN)₂

C) With 4 moles of NaSCN and 3 moles of MnSO₄, the reactant is NaSCN so we use that value to calculate the moles of product formed:

4 mol NaSCN * $\frac{1mol(SCN)_{2}}{2molNaSCN}$ = 2 mol (SCN)₂

D) $\frac{1molMnSO_{4}}{2molH_{2}SO_{4}}$

E) 1.7752 mol MnSO₄ * $\frac{2molH_{2}SO_{4}}{1molMnSO_{4}}$ = 3.5504 mol H₂SO₄

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3 years ago

How many 5 MB mp3 files can be stored on a 1 GB flash drive?

tester [92]

Answer:

200files

Explanation:

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3 years ago