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WINSTONCH [101]
3 years ago
5

HELPPPP!!!! Make a claim for how you could measure the amount of energy contained in this rice cake. Use evidence and examples t

o support your claim, and explain your reasoning.
Chemistry
1 answer:
Varvara68 [4.7K]3 years ago
7 0

Answer:

brief message to your community experiencing heavy rainfall

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Which of these is the largest quantity?
RideAnS [48]

Answer:

I would have to say the United States debt.

8 0
4 years ago
What kinds of intermolecular forces are involved in solution formation?
vredina [299]

if solvation  releases more energy than is consumed during dissolute, the solution formation is favored and the solute is soluble in the solvent.many inter molecular forces can contribute to solvation, including hydrogen bonding, dipole  -dipole forces and van der walls forces

7 0
3 years ago
As the atomic number increases, the number of _ _, too.
Morgarella [4.7K]

Answer:

Protons

Explanation:

The atomic number represents the number of protons. Therefore, as the atomic number increases, the number of protons does too.

I hope this helps! :)

8 0
3 years ago
Read 2 more answers
A balloon is filled with 0.250 mole of air at 35°C. If the volume of the balloon is 6.23 liters, what is the absolute pressure
lord [1]

Answer is:  the absolute pressure of the air in the balloon is 1.015 atm (102.84 kPa).

n = 0.250 mol; amount of substance.

V = 6.23 L; volume of the balloon.

T = 35°C = 308.15 K; temperature.

R = 0.08206 L·atm/mol·K, universal gas constant.

Ideal gas law: p·V = n·R·T.

p = n·R·T / V.

p = 0.250 mol · 0.08206 L·atm/mol·K · 308.15 K / 6.23 L.

p = 1.015 atm; presure of the air.

6 0
3 years ago
A chemical reaction is shown below:
BabaBlast [244]

Answer:

Mass = 8.46 g

Explanation:

Given data:

Mass of water produced = ?

Mass of glucose = 20 g

Mass of oxygen = 15 g

Solution:

Chemical equation:

C₆H₁₂O₆ + 6O₂     →   6H₂O + 6CO₂

Number of moles of glucose:

Number of moles = mass/molar mass

Number of moles = 20 g/ 180.16 g/mol

Number of moles = 0.11 mol

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 15 g/ 32 g/mol

Number of moles = 0.47 mol

now we will compare the moles of water with oxygen and glucose.

               C₆H₁₂O₆           :            H₂O

                   1                   :              6

                 0.11                :           6/1×0.11 = 0.66

                   O₂               :            H₂O

                   6                   :              6

                 0.47                :           0.47

Less number of moles of water are produced by oxygen thus it will limit the yield of water and act as limiting reactant.

Mass of water produced:

Mass = number of moles × molar mass

Mass = 0.47 mol  ×18 g/mol

Mass = 8.46 g

8 0
3 years ago
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