Please! Which statement correctly describes glucose (C6H12O6)?
A)It is made of matter and contains twenty-four molecules.
B)It is an element made of three types of atoms.
C)It is an atom made up of carbon, hydrogen, and oxygen.
D)It is a compound made of twenty-four total atoms of three different elements.

Answers

Answer 1

Answer:

Answer:

The correct answer is D)It is a compound made of twenty-four total atoms of three different elements

Explanation:

Glucose (C₆H₁₂O₆) is a molecule (not an atom neither an element, so the options B and C are not completely correct). It is composed by three different elements (oxygen: O, carbon: C and hydrogen: H), and it has twenty-four atoms in its molecule: (6 x C) + (12 x H) + (6 x O)= 24. So, the option D is the one that best describes glucose.

Answer 2

Answer:

C) it is made up of carbon, hydrogen, and oxygen

D) it is a compound made of twenty-four total atoms of three different elements

they are both right but I would go with D

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A gas of 190 mL at a pressure of 74 atm can be expected to change its pressure when its volume changes to 30.0 mL. Express its new pressure in units of atmospheres.

Answers

Answer : The new pressure of the gas will be, 468.66 atm

Explanation :

Boyle's Law : This law states that pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

$P\propto (1)/(V)$ (At constant temperature and number of moles)

or,

$P_1V_1=P_2V_2$

where,

$P_1$ = initial pressure of the gas = 74 atm

$P_2$ = final pressure of the gas = ?

$V_1$ = initial volume of the gas = 190 ml

$V_2$ = final volume of the gas = 30 ml

Now we put all the given values in the above formula, we get the final or new pressure of the gas.

$74atm* 190ml=P_2* 30ml$

$P_2=468.66atm$

Therefore, the new pressure of the gas will be, 468.66 atm

Answer: The new pressure of the gas is 467 atm.

Explanation:

To calculate the new pressure, we use the equation given by Boyle's law. This law states that pressure is inversely proportional to the volume of the gas at constant temperature.

The equation given by this law is:

$P_1V_1=P_2V_2$

where,

$P_1\text{ and }V_1$ are initial pressure and volume.

$P_2\text{ and }V_2$ are final pressure and volume.

We are given:

$P_1=74atm\nV_1=190mL\nP_2=?atm\nV_2=30.0mL$

Putting values in above equation, we get:

$74atm* 190mL=P_2* 30.0mL\n\nP_2=(74* 190)/(30.0)=467atm$

Hence, the new pressure of the gas is 467 atm.

Why do atoms with greater numbers of protons have greater electronegativity?

Answers

Answer:

the positivity charged protons in the nucleus attract the negatively charged elections.bas the number of protons in the nucleus increases, the electronegativity or attraction will increase

Katy works at a pet store, and is in charge of tracking the cat food supply for the morning, afternoon, and evening shifts. There are currently six cats at their store, and each cat had full food bowls during the morning and afternoon shifts, throughout the entire shift. Each day, the evening shift person replenished the food bowls at the end of their shift. What is the pattern Katy could note from this data?

Answers

Because the cats all have full bowls in the morning and afternoon, Katy can assume that the cats do not eat in the morning or afternoon. The bowls are replenished in the evening, which suggests that they become empty in the evening, which suggests that the pattern is that the cats eat in the evening.

Cat's tend to eat more in the afternoon than in the morning and night.

Explain a polar molecules and give examples

Answers

Ethanol is polar because the oxygen atoms attract electrons because of their higher electronegativity than other atoms in the molecule. Thus the -OH group in ethanol has a slight negative charge. Ammonia (NH3) is polar. Sulfur dioxide (SO2) is polar.

Which part of an atom determines how it will react with other atoms? a. neutrons in the nucleus
b. protons in the nucleus
c. valence electrons
d. innermost electrons

Answers

valence electrons of an atom determines how it will react with other atoms
hope this helps

Answer: C. valence electrons

Explanation: Study Island

Choose the correct equation to represent the following statement (unbalanced chemical equation):Aluminum reacts with hydrochloric acid to yield aluminum chloride and hydrogen.

A. AlCl3 + H2 Al + HCl
B. Al + HCl AlCl3 + H2
C. Al HCl + AlCl3 + H2
D. Al + HCl AlCl3 + H2O

Answers

B. Al +HCI AICI3 +H2. I hope this helps

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