1.ella____de espana
2.Tu_____venezolano
3.Usted___de Argentina

According to the following reaction, how many grams of hydrofluoric acid will be formed upon the complete reaction of 25.6 grams of water with excess silicon tetrafluoride? silicon tetrafluoride (s) + water (l) hydrofluoric acid (aq) + silicon dioxide (s) 4. A toy rocket is fired into the air from the top of a barn. It's height (h) above the ground inyards after t seconds is given by the function: h(t) =- 5t^2+ 10t+ 20.a) What was the maximum height of the rocket?b) How long was the rocket in the air before it reached its highest height? how many seconds in 4 minutes? its for PE class- You and a partner are considering the purchase of a convenience store.? The store has annual sales of $500,000 and is paying annual payroll of $100,000. The cost of goods sold every year is $150,000. The firm has miscellaneous expenses (taxes, insurance, garbage, electricity, natural gas, security, maintenance, property taxes, training, advertising, accounting fees, bank charges, etc.) of roughly $68,000 per year. If depreciation is equal to $15,000 per year and the tax rate is equal to 38% then what is the net income? How do our cells formcarbon dioxide? Read this excerpt from "A Drop in the Bucket."In one of the Smithsonians curation rooms, she carefully places "Diane France's brain" on a table and props it up around the edges with clay. But the clay doesn't stick to the table, and the brain loses its shape. That's no good.Next, she tries putting the brain in a pan and smooshes clay around the inside edge of the container. Still no good.Finally, after more trial and error, Diane grabs a stainless steel bowljust like the one in her kitchenand presses clay in a ring around the curved bottom. She adds a layer of formalin-soaked paper towels to keep the bottom of the brain damp. Then, she carefully nestles the brain in the ring. It works! The brain holds its shape as she coats the top with a liquid form of silicone rubber. The rubber hardens to make one-half of a mold.Which detail from the excerpt identifies a problem?PLEASE HELP POINTS I WILL GIVE AND BRAINLIEST WHO GIVES FIRST ANSWER AND REAL ANSWER 1. In 1995, the average level of mercury uptake in wading birds in the Everglades was 15 parts per million. If we assume that the distribution of mercury uptake has a standard deviation of 1 part per million, and a current sample of 25 wading birds has an average of 14.6 parts per million. Which null and alternative hypotheses would be used to test that the level of mercury uptake in the Everglades has decreased since 1995? A store orders 22 boxes of light bulbs. Each box has 148 bulbs.Which is the best estimate of the total number of bulbs the store orders? A. 20100 B. 20150 C. 25150 D. 25200 I led an army unit into battle against Indians camp at Little BigHorn. My troops were encircles and slaughtered. Who or what said this? The Periodic Table of Elements is organized by the number of:a) neutronsb) electronsc) protonsd) neutrons and protons Which certifications would most benefit a medical coder seeking a position in a hospital?-CCS-CHDA-CCS-P-RHIT Explain answer?????????????????? Plz help me Ill give brainliest what is measurement ? Exercise 6-4A Calculate inventory amounts when costs are rising (LO6-3) [The following information applies to the questions displayed below.] During the year, TRC Corporation has the following inventory transactions. Date Transaction Number of Units Unit Cost Total Cost Jan. 1 Beginning inventory 45 $ 37 $ 1,665 Apr. 7 Purchase 125 39 4,875 Jul. 16 Purchase 195 42 8,190 Oct. 6 Purchase 105 43 4,515 470 $ 19,245 A 4.45 g object moving to the right at 18.6 cm/s makes an elastic head-on collision with an 8.9 g object that is initially at rest. 18.6 cm/s 4.45 g 8.9 g Find the velocity of the first object immediately after the collision. The acceleration of gravity is 9.8 m/s 2 . Answer in units of cm/s. I need help with this one question ASAP Can sum1 please help me on this ty!! You are thinking of opening a Broadway play, I Love You, Youre Mediocre, Now Get Better! It will cost $5 million to develop the show. There are 8 shows per week, and you project the show will run for 100 weeks. It costs $1000 to open the theater each night. Tickets sell for $50.00, and you earn an average of $1.50 profit per ticket holder from concessions. The theater holds 800, and you expect 80% of the seats to be full. a. Given your other assumptions, how many weeks will the play have to run for you to earn a 100% Which particle is negatively charged?A. protonB. atomC. neutronD. electron