Pleas help me i have an exam pleas! You have the next interaction
Na2CO3 + 2HNO3 > 2NaNO3 + CO2 + H2O
Calculate the mass of the sodium carbonate for its reaction to 0.5355 kg of nitric acid.
Calculate the mass of carbon dioxide gas circulation 1484

Which of the following are good traits of a hypothesis? it will be able to be testedit can predict an outcomeit will explain the observationsall of these

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that