Which of the following instruments is used to measure air pressure?

a. Barometer

b. Thermometer

c. Anemometer

d. Hygrometer

The specific heat of iron is 0.4494 j/g°C. how much heat energy (kj) is transferred when a 24.7 kg iron ingot is cooled from 880°C to 13°C?

If an atom has 2 protons, 3 neutrons, and 3 electrons, what is the electrical charge of the atom? Question 3 options: positive negative neutral varies

Which elements are likely to have a larger atomic radius than silicon (Si). aluminum (Al) carbon (C) sulfur (S) tin (Sn)

What is the largest and most inclusive level of ecological organization

Why did it require two sodium atoms to complete the Na2O formula unit? Na has + 2 charge and O has - 1 charge. Na has + 1 charge and O has - 2 charge. Na has - 2 charge and O has + 1 charge.

A balanced chemical equation is shown below C6H1206 + 602-6H20 + 6CO2 Which of the following best describes the number of atoms for each element in the chemical equation? A.

A subtance speeds up a chemical reaction without being changed itself as known as

How are rare earth elements like neodymiun important to our technological world?

How many molecules are in 525g of aluminum oxide

What do you think would happen if a solid were exposed to extremely cold temperatures, or if a gas were exposed to extremely hot temperatures?