1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
IrinaK [193]
2 years ago
12

Which statements accurately describe volume? Check all that apply.

Chemistry
2 answers:
allsm [11]2 years ago
7 0

Answer:

the answer is the number three

Nitella [24]2 years ago
3 0

Answer: the right answer is 1,4&5

You might be interested in
Each enzyme functions in a different area of the body, but both work to harness the power in carbohydrates and break these compl
Whitepunk [10]
The optimal pH is 6.9. The pancreatic amylase is a hydrolase secreted by pancreas and will go into the alimentary canal. The working environment has a pH of 6.9. So the optimal pH for the enzyme needs to be 6.9.
5 0
3 years ago
Read 2 more answers
Where is most of the water on earth found? What percentage?
bezimeni [28]

Answer:

The ocean holds about 97 percent of the Earth's water; the remaining three percent is found in glaciers and ice, below the ground, in rivers and lakes. Of the world's total water supply of about 332 million cubic miles of water, about 97 percent is found in the ocean.

wait..if you asking about the country it's Brazil✌️

8 0
2 years ago
Q1.
dlinn [17]

Answer:

there are four peaks in the 13c NMR (B)

3 0
3 years ago
Suppose the half-life is 9.0 s for a first order reaction and the reactant concentration is 0.0741 M 50.7 s after the reaction s
bazaltina [42]

<u>Answer:</u> The time taken by the reaction is 84.5 seconds

<u>Explanation:</u>

The equation used to calculate half life for first order kinetics:

k=\frac{0.693}{t_{1/2}}

where,

t_{1/2} = half-life of the reaction = 9.0 s

k = rate constant = ?

Putting values in above equation, we get:

k=\frac{0.693}{9}=0.077s^{-1}

Rate law expression for first order kinetics is given by the equation:

k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}     ......(1)

where,

k = rate constant  = 0.077s^{-1}

t = time taken for decay process = 50.7 sec

[A_o] = initial amount of the reactant = ?

[A] = amount left after decay process =  0.0741 M

Putting values in equation 1, we get:

0.077=\frac{2.303}{50.7}\log\frac{[A_o]}{0.0741}

[A_o]=3.67M

Now, calculating the time taken by using equation 1:

[A]=0.0055M

k=0.077s^{-1}

[A_o]=3.67M

Putting values in equation 1, we get:

0.077=\frac{2.303}{t}\log\frac{3.67}{0.0055}\\\\t=84.5s

Hence, the time taken by the reaction is 84.5 seconds

6 0
3 years ago
A covalent chemical bond is one in which _____. a covalent chemical bond is one in which _____. outer-shell electrons of two ato
PtichkaEL [24]

Answer:

            A covalent chemical bond is one in which <u>outer-shell electrons of two atoms are shared so as to satisfactorily fill their respective orbitals</u>.

Explanation:

                   Covalent bonds are formed between two atoms having their electronegativity difference less than 1.7. In this type of bonding the valence electrons of one atoms forms molecular bond with the valence electrons of another atom. The electrons are mutually shared.

                   Covalent bond can be non-polar as for example formed between hydrogen and carbon atoms.

                   Also, covalent bond can be polar in nature as that formed between hydrogen and chlorine atoms because the chlorine atom is more electronegative and hence attracts the electrons more towards itself making density of electrons less on hydrogen atom.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What kind of melocule is water?A:nonpolarB:ionicC:polarD:charged
    14·1 answer
  • Which of the following has a central atom that exceeds the octet rule? PCl5 BeF2 H2S CO2
    8·1 answer
  • How many electrons does ga lose to achive noble gas arrangement?
    15·1 answer
  • Multiple answers are allowed.
    14·2 answers
  • The amount of force applied per unit area is known as which of the following?
    7·1 answer
  • What is the wavelength of a 264-Hz sound wave when the speed of sound is 345 m2 1.31 m A. 0.77 m C. 6.09 m D. 0.11 m​
    5·1 answer
  • The forces between water molecules are stronger than the forces between ethanol molecules. Which liquid would probably be most d
    5·2 answers
  • Rank the following elements by increasing electron negativity: s,o,Ne,Al
    7·1 answer
  • Escaping from the haunted house, Anna ran home immediately to her chemistry lab
    5·1 answer
  • True or false, the four units that must always be used when using the ideal gas law are liters, atm, Kelvin, and grams
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!