Answer:
it is less dense than oxygen gas.
Explanation:
Hydrogen is the simplest chemical element that exists. The symbol for the chemical element Hydrogen is "H" and it is a colourless, tasteless, odorless, and highly flammable gas.
Hydrogen is a chemical element found in group (1) of the periodic table and as such it has one (1) electrons in its outermost shell. Therefore, Hydrogen has an atomic number of one (1) and a single valence electrons because it has only one proton and one electron in its nucleus.
In Chemistry, the properties of a chemical element that can be observed and measured without changing its chemical nature is known as a physical property. It includes density, color, freezing point, opacity, smell, melting point, viscosity, etc.
Hence, the statement which describes a physical property of hydrogen is that it is less dense (density) than oxygen gas.
The Structural formula for the activated form of caprylic acid is CH3(CH2)6CO2H
<u>Explanation:</u>
- The Structural formula for the activated form of caprylic acid is CH3(CH2)6CO2H.
- Caprylic acid is a medium-chain fatty acid .
- It is mainly found in palm oil, coconut oil and obtained in the milk of certain mammals.
- Caprylic acid is taken for medical treatments like lung-related disorder, acne, obesity, bacterial skin infection, and it is taken as a dietary supplement.
- It is also used in the production of dyes, perfumes, and sanitizers.
- They are also known as octanoic acid.They are also used in the making of esters
Answer:
0.14 lb
Explanation:
The <em>half-life</em> of U-235 (703.8 ×10⁶ yr) is the time it takes for half the U to decay.
After one half-life, half (50 %) of the original amount will remain.
After a second half-life, half of that amount (25 %) will remain, and so on.
We can construct a table as follows:
No. of Fraction Amount
<u>half-lives</u> <u>t/(yr × 10⁶)</u> <u>remaining</u> <u>remaining/lb
</u>
1 703.8 ½ 1.1
2 1408 ¼ 0.55
3 2111 ⅛ 0.28
4 2815 ¹/₁₆ 0.14
We see that 2815 × 10⁶ yr is four half-lives, and the amount of U-235 remaining is 0.14 lb.
Answer:
B because if it's adding more atoms but becoming more compact then it is getting smaller.
Explanation: