How do you tell whether an element on the periodic table is positive or negative?

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Thermochemistry Using specific heat capacity to find heat Calculate the energy required to heat 0.70 kg of silver from -3.2 °C to 4.4 °C. Assume the specific heat capacity of silver under these conditions is -1 0.235 J.g¹·K ¹. Round your answer to 2 significant digits. x10 μ ☑ 0/3

The work done to compress a gas is 69.0 J. As a result, 29.0 J of heat is given off to the surroundings. Calculate the change in energy of the gas. Be sure your answer has the correct number of significant digits. J ☐x10

be sure your answer is correct and have the correct number of significant digits

Use the following data to answer part A: mixing NaOH(s) into plain water released 1541 J of heat mixing NaOH(s) into HCl(aq) released 3498 J of heat mixing NaOH(aq) into HCl(aq) released 2000 J of heat Show that this data either supports or contradicts Hess’s Law and be clear in your explanation by using chemical equations and numerical calculations. Assume that all three parts use the same amount of NaOH and for the two parts using HCl(aq), the same amount of HCl was used as well. Hint: The sign of your values are important.

n each definition to a type of energy. Chemical Electrical Mechanical Radiant Answer Bank energy derived from substances reacting energy derived from energy derived from moving charged particles energy derived from the visible and invisible the position and and bonds being movement of an object electromagnetic spectrum made or broken 10:16 64 F Clear AENG 9/3/2

Incorrect Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations. Calculate the energy required to heat 610.0 g of ammonia from 42.7 °C to 49.6 °C. Assume the specific heat capacity of ammonia under these conditions is 4.70 J-g 1K1. Be sure your answer has the correct number of significant digits. Ex olo ?

Two types of renewable energy are photovoltaics (solar cells) and wind turbines.     Energy Type 1 nuclear 2 gravitational 3 thermal 4 electric 5 solar 6 chemical 7 kinetic The energy transformations in a wind turbine, from the sun’s energy to producing electricity are, in order a, b, c.The values of a, b, and c, respectively, are       2. The energy transformations in a solar cell, from the sun’s energy to producing electricity are, in order a, b.The values of a and b, respectively, are

Calculate the energy in kilojoules required to heat 0.134 g of water from 46.8 Celsius to 105.4 Celsius.