All categories

3 years ago

Help not sure of the answer would appreciate help

Chemistry

2 answers:

Nookie1986 [14]3 years ago

7 0

(iv) (i) + (II) this will be your answer my dude

S_A_V [24]3 years ago

6 0

Answer:-

(iv) (i) + (II)

Explanation:-

Hydrogen bonds Occur between Hydrogen and an element with high electronegativity like N or O.

DNA base pairs are arranged such that they are complimentary. Hence hydrogen bonding will occur between both the amide carbonyl and NH2 as well as the amide NH and Nitrogen of the cyclic C=N-C group.

You might be interested in

The two algae seen here are classified as green algae. That means they make their own food by photosynthesis. The algae on the l

ohaa [14]

Answer:

Explanation:

Unicellular algae can't do photosynthesis because it is a single cell organisms, therefore the answer is C

6 0

2 years ago

Read 2 more answers

A reaction in which a substance reacts with oxygen, emitting heat and forming oxygen-containing compounds is an example of a(n):

yaroslaw [1]

Answer: B) combustion reaction.

Explanation:

A) acid-base reaction: When an acid reacts with a base, to form metal salt and water, this type of reaction is Acid Base reaction.

Example: $HCl+NaOH\rightarrow NaCl+H_2O$

B) combustion reaction: When a hydrocarbon reacts with oxygen to produce carbon dioxide and water, this type of reaction is combustion reaction.

$CH_4+2O_2\rightarrow CO_2+2H_2O$

C) precipitation reaction: a reaction in which aqueous solution of two compounds on mixing react to form an insoluble compound which separate out as a solid are called precipitation reactions.

$Na_2SO_4(aq)+BaCl_2(aq)\rightarrow BaSO_4(s)+NaCl(aq)$

D) gas evolution reaction: a reaction in which one of the product is formed as a gas.

$CaCO_3(s)\rightarrow CaO(s)+CO_2(g)$

8 0

3 years ago

What variables affect whether or not the fishing weight floats?

Degger [83]

Answer:

Density

Explanation:

If the fishing weight is more dense than the water, it will sink and if it less dense it will float. hope this helps :)

7 0

3 years ago

Which of the following is a gaseous substance that is liquid or solid at room

Sveta_85 [38]

Answer:

liquid is the correct answer

3 0

2 years ago

Pls it’s urgent

Rainbow [258]

Answer:

0.02 moles.

Explanation:

volume of H₂ gas at R.T.P = 480 cm³

Where

R.T.P = room temperature and pressure

molar volume of gas at = 24000 cm³

no. of moles of hydrogen = ?

Solution:

formula Used

no. of moles = volume of gas / molar volume

put values in above equation

no. of moles = 480 cm³ / 24000 cm³/mol

no. of moles = 0.02 mol

So,

no. of moles of hydrogen in 480 cm³ is 0.02 moles.

4 0

2 years ago