Help!!!!! How many days are in a lunar year of 12 lunar months?

Answers

Answer 1

Answer: 354.367 days are in a lunar year of 12 lunar months.

Hope this helps:)

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Andrea is going to the golf course.The golf course charges a flat rate of $5.00 plus $1.50 per bucket of 50 golf balls. When she arrives,she is offered a discount rate of $.50 for a bucket of 50 golf balls plus the same flat rate. Andrea has $8.25 to speed. How many more bucket of golf balls will Andrea be able to get with the discount?A. 2 buckets
B. 4 buckets
C. 6 buckets
D. 8 buckets

Answers

B. 4 buckets more if she opts to avail the discount.

Given:
Flat rate = 5
Variable rate = 1.50

Option 1: Without discount
5 + 1.50x = 8.25
1.50x = 8.25 - 5
1.50x = 3.25
x = 3.25/1.5
x = 2.17 ⇒ 2 buckets

Option 2: with discount. $0.50 per bucket
5 + 0.50x = 8.25
0.50x = 8.25 - 5
0.50x = 3.25
x = 3.25/0.50
x = 6.50 buckets ⇒ 6 buckets.

Option 1: 2 buckets
Option 2: 6 buckets
Difference: 4 more buckets if she chose option 2. WITH DISCOUNT

c. 6 buckets

flat rate = $5
golf balls = $.50

.5×6 = the three remaining dollars

Why don’t water and oil mix when the two liquids are poured into the same container?

Answers

The oil always floats to the top because it is less dense than water. oil and water don't mix because water molecules are more attracted to each other than to oil molecules

Euglena,amoeba, and paramecium are in what kingdom

Answers

Well, it's because they're eukaryotic, single-celled, mobile.

A straight line on a graph means there is a ______ relationship between the dependent variable and the independent variable.

Answers

its a linear relationship

proportional linear relationship

Please help I need the answer now. Write a balanced equation for combustion of pentane in plenty supply of air and in limited supply of air

Answers

Pentane burns in plenty of air: CO₂ and H₂O is produced.

C₅H₁₂ + 8 O₂ → 5 CO₂ + 6 H₂O

Pentane burns in limited amount of air: CO or even C is produced along with H₂O.

2 C₅H₁₂ + 11 O₂ → 10 CO + 12 H₂O

Explanation

Pentane is a hydrocarbon. There are five carbon atoms in each of its molecule. Its molecular formula will be C₅H₁₂.

Hydrocarbon fuels burn to produce CO₂ when there's plenty of air.

? C₅H₁₂ + ? O₂ → ? CO₂ + ? H₂O

Among all species in this reaction, C₅H₁₂ has the largest number of atoms per molecule. Assume that the coefficient of C₅H₁₂ is one.

1 C₅H₁₂ + ? O₂ → ? CO₂ + ? H₂O

C₅H₁₂ is the only reactant that contains C atoms. There are 5 C atoms in a C₅H₁₂ molecule. There should be the same number of C atoms in the products.
CO₂ is the only product that contains C atoms. There are one C atom in each CO₂ molecule. 5 C atoms correspond to 5 CO₂ molecules.

1 C₅H₁₂ + ? O₂ → 5CO₂ + ? H₂O

Similarly, C₅H₁₂ is the only reactant that contains H atoms. H₂O is the only product that contains H atoms. There are 12 H atoms in one C₅H₁₂ molecule, which corresponds to 6 H₂O molecules.

1C₅H₁₂ + ? O₂ → 5CO₂ + 6 H₂O

Both CO₂ and H₂O are products that contains O atoms. There are 5 × 2 + 6 × 1 = 16 O atoms in total in 5 CO₂ molecules and 6 H₂O molecules. The 16 O atoms on the product side corresponds to 8 O₂ molecules on the reactant side.

1C₅H₁₂ + 8 O₂ → 5CO₂ + 6 H₂O

1 C₅H₁₂ + 8 O₂ → 5 CO₂ + 6 H₂O

All coefficients shall be whole numbers. If there's any fraction in this equation, multiply both sides by the least common multiple of their denominators.

Hydrocarbon fuels burn to produce H₂O and CO when there's a limited supply of air. C (soot) might also be produced. Assuming that only CO is produced. Try to balance the equation using the same method.

1 C₅H₁₂ + 11/2 O₂ → 5 CO + 6 H₂O

2 C₅H₁₂ + 11 O₂ → 10 CO + 12 H₂O

Less O₂ is consumed for each mole of C₅H₁₂.

Consider: What would be the balanced equation when only C is produced?

Reference

"Products and effects of combustion", GCSE Chemistry (Single Science), BBC Bitesize.

Which type of energy transfer occurs when water is heated on a stove

Answers

Hello User,

The type of energy that occurs when water is heated on stove is heat transfer. Heat transfer is the exchange of thermal energy.

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