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Tems11 [23]
3 years ago
14

An astronomer is using a foloscope to observe several objects in the Solar System. She records her brain the chart blow

Chemistry
1 answer:
aliina [53]3 years ago
8 0

Answer:

Answer B is correct. Paying off your credit card bill will reduce the amount of debt you have and improve your credit score. Closing old credit cards only works if they are unused. As savings accounts are not included in a credit report, opening a new savings account will not have an effect, either negative or positive, on your credit score. Using up your credit limit will have the negative effect of lowering your credit score.

Explanation:

umm maybe this help you

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At sea level water usually boils at 100. °C and 760. mmHg pressure. On Mt Whitney, the pressure is about 560. mmHg. At what temp
WITCHER [35]

Answer:

  91.7°C

Explanation:

We suppose you have a formula to work from. However, that is not supplied with this problem statement, so we looked one up.

The formula in the attachment is supposed to have good accuracy in the temperature range of interest. It gives vapor pressure of water in kPa, not mmHg, so we needed the conversion for that, too.

560 mmHg corresponds to about 74.66 kPa. The attached "Buck equation" formula is used to find the corresponding temperature. The exponential equation could be solved algebraically using logarithms and the quadratic formula, but we choose to find the solution graphically.

Water boils at about 91.7 °C on Mt. Whitney.

7 0
3 years ago
Why is it important to use standard measurements and units in science
saul85 [17]

Unit' is the word used to describe how something is measured. When researching a question in science, we collect data, interpret it, and share the results with other scientists. A common measurement system allows us to make direct comparisons instead of having to know things like how much a certain animal weighs.

6 0
3 years ago
A community needs more electrical energy. The community is located in an
Paha777 [63]

Answer:

D BIOMASS ENERGY

Explanation:

Most biomass requires arable land to develop. This means

that land used for biofuel crops such as corn and soybeans

are unavailable to grow food or provide natural habitats.

Forested areas that have matured for decades (so-called

“old-growth forests”) are able to sequester more carbon

than newly planted areas.

7 0
2 years ago
Hello I need help on what I should do for my science project ok so we were asked to make a brochure on the four stars of matter
Zolol [24]

A matter zoo maybe or a matter pool party. Idk I have a couple more ideas

5 0
3 years ago
The information below describes a redox reaction.
Rashid [163]

Answer:

Al°(s)  + 3Ag⁺(aq) => Al⁺³(aq) + 3Ag(s)

Explanation:

Oxidation:                            Al°(s) =>   Al⁺³(aq) + 3e⁻

Reduction:           3Ag⁺(aq) + 3e⁻ => 3Ag°(s)

_________________________________________

Net Rxn:           Al°(s)  + 3Ag⁺(aq) => Al⁺³(aq) + 3Ag(s)

One mole of neutral aluminum atoms (Al°(s)) undergo oxidation delivering 3 moles  of electrons to 3 moles silver ions (3Ag⁺³(aq)) that are reduced to 3 moles of neutral silver atoms (3Ag°(s)) in basic standard state 25°C; 1atm.

7 0
3 years ago
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