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If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of g/mol?

The emission spectrum of sodium is shown below. What do the two bright yellow vertical lines in the spectrum show about sodium atoms?

what was the purpose of a protective tariff?

Jaidon took his family out for dinner. he planned to leave a 15% gratuity on the bill. What is the amount of the tip if the bill was $123.50 ?

Round 299.2131 to the nearest thousands

Who is responsible for passing a state budget in Georgia? the governor the general assembly the speaker of the house the president of the senate

Please answer these three questions please!

Seventy-Two Inc., a developer of radiology equipment, has stock outstanding as follows: 80,000 shares of cumulative preferred 3% stock, $20 par and 405,000 shares of $25 par common. During its first four years of operations, the following amounts were distributed as dividends: first year, $32,000; second year, $75,000; third year, $80,000; fourth year, $110,000. Determine the dividends per share on each class of stock for each of the four years. Round all answers to two decimal places.

An object of 4 cm length is placed at a distance of 18 cm in front of a convex mirror of radius of curvature 30 cm. Find the position of the image ,its nature and size?​

Code the paragraph. Underline nouns. Circle adjectives. Box verbs. Ned needed a nap today. He crawled in the high hammock in the backyard. He started swinging in the hammock was making him even more tired. Ned tired hard to keep the green eyes open but they just kept shutting. Finally, Ned let his tired eyes close and he slept in the hammock for one for one hour. When he woke up, he felt much better and planned to take a daily nap this summer.

assume that ~u · ~v = −3 and |~v| = 2. find ~v · (2~u − 3~v).

WILL GIVE BRAINLYIST

Explain the process of rainwater harvesting with its advantages .

The rectangles are similar. Find x.

Determine the present value P that must be invested to have te future A at simple interest rate r after time t. A=$3000 r=9.5% t=9 months

Consider the reaction: CaCO3(s) à CaO(s) + CO2(g) Estimate ΔGo for this reaction at each temperature and predict whether or not the reaction is spontaneous. (Assume that DH and DS do not change too much within the given temperature range.) Standard Thermodynamic Quantities for Selected Substances at 25 ∘C Substance ΔH∘f(kJ/mol) S∘(J/mol⋅K) CaCO3(s) −1207.6 91.7 CaO(s) −634.9 38.1 CO2(g) −393.5 213.8 Express your answer using one decimal place. ΔG∘ =

How women impacted cultural norms about gender? Please help me

the amount of water in a bathtube as it drains can be modeled by this equation with y representing the number of gallons of water in the tub and x representing the time, in minutes, that the tube has been draining y=-7.3x+39.7 after how many minutes will the tub have 17.8 gallons of water remaining

when oxygen is not available, which of the following sources is used by muscle cells to produce atp to prevent muscle rigor?

Imperial jewelers manufactures and sells a gold bracelet for $189.95. the company's accounting system says that the unit product cost for this bracelet is $149.00 as shown below:

What is the name of a government ruled by a small group of wealthy people?

Help please I need it.

Which of the following examples does Carson use in Silent Spring to show the dangers of pesticides? A. farm animals became sick and died B. the birds disappeared from people's backyards C. there were no bees to pollinate the flowers on the fruit trees D.All of these choices are correct. Based on the excerpt, readers could conclude that: A. pesticides are harmful to animals and humans. B.only insects are affected by pesticides. C.most deaths in the U.S. are caused by pesticides. D. None of these choices are correct.

When you drink cold water, your body must expend metabolic energy in order to maintain normal body temperature (37° C) by warming up the water in your stomach. Could drinking ice water, then, substitute for exercise as a way to "burn calories?" Suppose you expend 286 kilocalories during a brisk hour-long walk. How many liters of ice water (0° C) would you have to drink in order to use up 286 kilocalories of metabolic energy? For comparison, the stomach can hold about 1 liter.

Please help me pleaseee pleasee sooo difficult Ex.2