Why does the flask have to be closed during the hydrochloric acid and sodium carbonate reaction?

A pet shelter maintains a ratio of 5 cats to 8 dogs. If there are 117 total animals in the shelter, how many are dogs? Set up and solve a proportion. What happened at Waterloo?Lafayette surrenderedThe Declaration of IndependenceLouis XVI was guillotinedIt was Napoleon's final battle can yall help please :) which number is bigger 1.59 or 1.955 You are in a tug-of-war with some friends. You side is tugging with 521 N to the left. The other side is tugging with 550 N to the right. What is the net force on the rope? (Assume right is positive, left is negative). There are three positive consecutive integers where the first number times the second number is 7 more than the third number. Find the sum of all 3 integers. The first noble gas with a Lewis Structure with 8 dots isA. ArB. KrC. HeD. ne I need help solving this Please help me!!!adapted from Submarinesfrom The Story of Great Inventionsby Elmer Ellsworth Burns Successful navigation beneath the surface of the water, though not carried to the extent imagined by Jules Verne, was a reality at the beginning of the twentieth century. Instead of twenty thousand leagues under the sea, less than a hundred leagues had been accomplished, but no one can foretell what the future may have in store. The submarine is primarily utilized in wars. The weapon used by the submarine is the torpedo. The torpedo is itself a small submarine able to propel itself, and if started in the water toward a certain object, to go under water straight to the mark. It carries a heavy charge, either of guncotton or dynamite, which explodes when the torpedo strikes a solid object, such as a battle-ship. It would be very difficult for one submarine to fight another submarine, for the submarine when completely submerged is blind. It could not see in the water to find its enemy. The torpedo-boat-destroyer is able to destroy a submarine by torpedoes, shells full of high explosives, or quick-firing guns. Advantage must be taken of the moment when the submarine comes to the surface to get a view of her enemy. One of the great enemies of the submarine will probably be the air-ship, for while the submarine when under water cannot be seen from a ship on the surface, it can, under favorable conditions, be seen from a certain height in the air. The rising and sinking of the submarine depend on the principle of Archimedes. The upward push of the water is just equal to the weight of the water displaced. If the water displaced weighs more than the boat, then the upward push of the water is greater than the weight of the boat and the boat rises. However, the boat can be made to dive when its weight is just a little less than the weight of the water displaced. This is done by means of horizontal rudders which may be inclined so as to cause the boat to glide downward as its propeller drives it forward. There is one submarine built for peaceful pursuits. It is the Argonaut, invented by Simon Lake. This remarkable boat crawls along the bottom of the sea, but not at an immense depth. It is equipped with divers' appliances, and is used in saving wreckage. Divers can go out through the bottom of the boat, walk about on the sea bottom, and when through with their work re-enter the boat; all the while boat and men are, perhaps, a hundred feet below the surface. The divers' compartment, from which the divers go out into the water, is separated by an air-tight partition from the rest of the boat. Compressed air is forced into this compartment until the pressure of the air equals the pressure of the water outside. Then the door in the bottom is opened, and the air keeps the water out. The men in their diving-suits can then go out and in as they please. For every boat, there is a depth beyond which it must not go. The penalty for going beyond this depth is a battered vessel, for the pressure increases with the depth. Every time the depth is increased thirty-two feet, the pressure is increased fifteen pounds on every square inch. Beyond a certain depth, the vessel cannot resist the pressure. Submarines have been made strong enough to withstand the pressure at a depth of five thousand feet, or nearly a mile. Most submarines, however, cannot go deeper than a hundred and fifty feet. Air is supplied to the occupants of the boat either from reservoirs containing compressed air or oxygen, or by means of chemicals which absorb the carbon dioxide produced in breathing and restore the needed quantity of oxygen to the air.Select all the correct answers.Read the sentence from the passage.The submarine is primarily utilized in wars.Which two words have a similar denotation to the word utilized as it is used in the passage?A tiltedB. AdvertisedC. AuthorizedD. UsedE. Employed Which reform came about as a result of the progressive movement?A . disease prevention lawsB. recall of lawsC. increased precinct governmentD. direct election of senators How do you say hello in you language? During the period between the end of the Revolution and the period ofNapoleon's rule, France was governed byThe SenateThe DirectoryThe Committee of Public SafetyThe Estates General Can someone help me? Please i need this done 1. Which issue was addressed in the post-Civil War amendments?citizenshipimmigrationmilitary draftprivacy rights Match the term with the correct definitionQuestion 3 options:It is a government where the monarch and the constitutionally organized governing body share power. The monarch is the head of state, but the decisions are made by the government.one person makes all decisions for the government.It is a form of rule in which a single person has undivided rule of absolute sovereigntymany people run the government and have a say in decisions.It is the political doctrine and practice of unlimited centralized authority and absolutely sovereignty, vested in a monarch or dictator. The leader is not kept in check by any other governing body.1. Democracy2. Autocracy3. Absolutism4. Monarchy5. Constitutional Monarchy A = p + prt solve for t Compare the two statements below and decide if the phrase: "In a plane," needs to be included in order to make a true statement. 1. In a plane, if a transversal is perpendicular to one of two parallel lines, then it is perpendicular to the other line.versus2. If a transversal is perpendicular to one of two parallel lines, then it is perpendicular to the other line.answer choices:A) It does not need to be included. By leaving it out of the statement, the reader considers three dimensions not just the xy-plane. The two parallel lines would determine a plane. However, the transversal could intersect only one of the lines. This would allow the proof to use the Corresponding Angles Theorem.B) It does not need to be included. By leaving it out of the statement, the reader considers three dimensions not just the xy-plane. The two parallel lines would determine a plane. However, the transversal could intersect only one of the lines. This would allow the proof to use the Angle Bisector Theorem.C) It needs to be included as it forces the reader to consider only two dimensions, like the xy-plane. The two parallel lines would determine the plane and the transversal would intersect both lines. This would allow the proof to use the Corresponding Angles Theorem.D) It needs to be included as it forces the reader to consider only two dimensions, like the xy-plane. The two parallel lines would determine the plane and the transversal would intersect both lines. This would allow the proof to use the Angle Bisector Theorem. every spring has an equilibrium position which statement describe a spring at it equilibruim position? What made Hatshepsut different from any other pharaoh? What is the definition of photosynthesis?the process of converting the energy in oxygen molecules into ATPthe process of changing light into stored chemical energy in the form of sugarsthe process of converting the energy in carbohydrate molecules into ATPthe process of changing light into stored chemical energy in the form of lipids