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3 years ago

9

When an ionic compound is placed in water, the positive end of the water molecule is attracted to the cation (+) of the ionic co

mpound.

1 answer:

Pani-rosa [81]3 years ago

3 0

Answer:

what's the question?I can't answer without a question

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Does the coronavirus have DNA or RNA?

Mila [183]

Answer:

The coronavirus has RNA?

Explanation:

Coronaviruses are important human and animal pathogens and contain an extraordinarily long (27-31 kb) RNA genome. Its RNA synthesis involves complex mechanisms of regulation, similar to those of DNA viruses. In this treatise, mouse hepatitis virus (MHV) is used as a model for the discussion of the mechanism of viral RNA synthesis. We show that MHV RNA synthesis requires interactions of multiple RNA components, which are likely mediated by protein-RNA and protein-protein, as well as RNA-RNA, interactions. This virus also provides a unique example of a discontinuous transcription mechanism, which involves a trans-acting RNA component. Finally, study of the cis-acting signals for the various steps of RNA synthesis revealed an insight into the regulation of viral RNA synthesis. This discussion suggests that the regulation of RNA synthesis in coronavirus is more complex than previously thought possible for RNA viruses. Coronavirus RNA transcription and replication may serve as a paradigm of RNA synthesis for RNA viruses in general.

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3 years ago

Help me please :3 :3 :3 ;3

11111nata11111 [884]

I am pretty sure the answer is F

7 0

4 years ago

Read 2 more answers

Which activity most likely involves the direct use of saturated hydrocarbons?

Ugo [173]

I dont know but the options are:
burning natural gasdissolving salt in watercarving stone with hammer and chisel<span>bending steel by hand</span>

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4 years ago

Read 2 more answers

Rutherford investigated atoms by firing small, positively charged particles at a thin sheet of gold foil. What results would he

Bezzdna [24]

If Thomson’s model of the atom were correct, Rutherford should have seen a complete reflection of those particles when fired at the foil. Those particles would have hit a solid object (Thomson model) and would have been reflected back at the emitter. However, Rutherford discovered that most of those particles passed through the sheet, either continuing straight through or having the angle change a small amount (bouncing off the nucleus). Only a small number of the particles were reflected back, having hit the nucleus straight on. This led him to believe that there was a small, dense portion of the atom that resided within a larger, emptier space.

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3 years ago

Determine the mass of each of the following:

tino4ka555 [31]

Answer:

A) 0.82 g

B) 306 g

C) 0.23 g

D) $1.261x10^{6}$ g

E) 764 g

Explanation:

A) Upon consulting a periodic table one can find the atomic masses of each element present at a given molecule.

H=1.00 g/mol K=39.10 O=16.00

By adding the masses of the atoms in a molecule, we get its molecular weight.

KOH molecular mass is 1.00+39.10+16 = 56.10 g/mol

Therefore the mass in 0.0146 mol of KOH is:

56.10 g/mol x 0.0146 mol = 0.82 g

B) Upon consulting a periodic table one can find the atomic masses of each element present at a given molecule.

H=1.00 g/mol C=12.01

By adding the masses of the atoms in a molecule, we get its molecular weight.

C2H6 molecular mass is 6x1.00+2x12.01= 30.02 g/mol

Therefore the mass in 10.2 mol of KOH is:

30.02 g/mol x 10.2 mol = 306 g

C) Upon consulting a periodic table one can find the atomic masses of each element present at a given molecule.

Na=22.99 g/mol S=32.07 O=16.00

By adding the masses of the atoms in a molecule, we get its molecular weight.

Na2SO4 molecular mass is 2x22.99+32.07+4x16.00=142.05 g/mol

Therefore the mass in 0.0016 mol of Na2SO4 is:

142.05 g/mol x 0.0016 mol = 0.23 g

D) Upon consulting a periodic table one can find the atomic masses of each element present at a given molecule.

H=1.00 g/mol C=12.01 O=16.00

By adding the masses of the atoms in a molecule, we get its molecular weight.

C6H12O6 molecular mass is 16x1.00+6x12.01+6x16.00= 184.06 g/mol

Therefore the mass in 6854 mol of C6H12O6 is:

184.06 g/mol x 6854 mol = $1.261x10^{6}$ g

E) Upon consulting a periodic table one can find the atomic masses of each element present at a given molecule.

H=1.00 g/mol Cl=35.45 g/mol Co=58.93 g/mol N=14.01 g/mol

By adding the masses of the atoms in a molecule, we get its molecular weight.

Co(NH3)6 Cl3 molecular mass is 58.93+6x14.01+18x1.00+3x35.45=267.34 g/mol

Therefore the mass in 2.86 mol of Co(NH3)6 Cl3 is:

267.34 g/mol x 2.86 mol = 764 g

4 0

4 years ago