Answer:
D) 40
Explanation:
The number of sex chromosomes in an organism is half the number of chromosomes the individual has.
So if the individual has 80 chromosomes, they’ll have 80/2 =40 sex chromosomes.
Answer:
A)2
Explanation:
Answer:
24 calories of protein
Explanation:
200 - 176 = 24 calories
Answer:
A pH less than 7 is an acid, with number 1 indicating stronger acids
Explanation:
The pH scale has a range of 1 to 14. The following has been concluded on the pH scale:
1. Between 1 and 6 indicates an acid solution.
2. 7 indicates a neutral solution
3. Between 8 and 14 indicates an alkaline or basic solution.
Now with these information, we can answer the above questions as follow:
A pH less than 7 is an acid, with number 1 indicating stronger acids
A pH less than 7 is an acid. Lower pH values mean stronger acids.
A pH less than 7 is considered an acid. The pH scale measures the concentration of hydrogen ions in a solution, therefore a lower number on the scale indicates a higher concentration of hydrogen ions and consequently a stronger acid. For example, lemon juice, with a pH of around 2, is much more acidic than black coffee, which has a pH of about 5.
#SPJ3
O carbon and sulfur
O aluminum and chlorine
O
lithium and oxygen
Answer: Option (b) is the correct answer.
Explanation:
A covalent bond is defined as the bond formed between the two atoms due to sharing of electrons.
A covalent bond is always formed between non-metals.
For example, carbon and sulfur are both non-metals and when they chemically combine together they form which is a covalent compound.
Thus, we can conclude that out of the given options carbon and sulfur is the pair of elements that will form a covalent bond.
Answer:
Explanation:
Combine Gas law is a combination of three gas laws which are Boyle's Law, Charles' Law, and Gay-Lussac's Law.
Combine gas law states that the ratio of the product of pressure and volume and the absolute temperature of a gas is equal to a constant.
Hence the equation becomes:
where P = pressure,
V = volume,
T = absolute temperature,
k = constant.
Now we know that Kelvin = °Celsius + 273
For all gas law problems it is necessary to work in the Kelvin scale because temperature is in the denominator in the combined gas laws (P/T, V/T and PV/T) and can be derived in the ideal gas law to the denominator (PV/RT) . If we measured temperature in Celsius we could have a value of zero degrees Celsius and this would solve as no solution, as you cannot have zero in the denominator.
However, if we reached zero in the Kelvin scale this would be absolute zero and all matter would stop and therefore there would be no gas laws to worry about.