<span>The DNA or deoxyribonucleic acid is composed of a pentose sugar,
a base and phosphate group. The bases are adenine, thymine, cytosine and
guanine. Guanine always forms hydrogen bonds with cytosine. Remember the
statement “Apples in the Tree, Cars in the Garage”. The A stands for adenine
and pairs with T-thymine then C – cytosine and G – guanine. </span>
Answer:
The answer is
555.94g
Explanation:
To find the mass of a substance given it's density and volume we use the formula
<h2>
</h2>
Making mass the subject we have
mass = Density × volume
From the question
Density = 7.7 g/cm³
Volume = 72.2 cm³
Substitute the values into the above formula
That's
mass = 7.7 g/cm³ × 72.2 cm³
We have the final answer as
<h3>mass = 555.94g</h3>
Hope this helps you
Answer:
An acid produces hydrogen ions in aqueous solution because it reacts with the water molecules by giving a proton to them.
Explanation:
When hydrogen chloride gas dissolves in water to produce hydrochloric acid, the hydrogen chloride molecule gives a proton (a hydrogen ion) to a water molecule.
Answer:
A. 6
Explanation:
369 132 000 s
The important rules are
• Digits other than zero are significant
• Trailing zeroes before the decimal point are not significant
The decimal point is after the last zero, so the three zeroes are not significant,
Thus, the underlined digits in <u>369</u> <u>132 </u>000 are significant.
There are six significant figures in the measurement.
Answer:
Reactants are favored over products in the reaction
Explanation: