Which type of property of matter can be observed without changing the composition of the substance? Question 1 options: chemical properties reversible properties physical properties irreversible properties

In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions), which affects lattice energy (a measure of the attractive force holding those ions together).

In two or more complete sentences summarize the difference between renewable and nonrenewable resources? Justify your responses with examples.

86.4g of carbon dioxide gas, are dissolved in 225 ml of water. Calculate the molarity of the carbon dioxide

Choose the correct statement from the list below. a. Protein digestion begins in the small intestine with the activation of trypsinogen to trypsin b. Proteins that are consumed in the diet are absorbed as individual amino acids following digestion.

An unknown substance is a yellow gas at room temperature. Is this substance ionic or covalent? How do you know?

What is the value of 200c on a Kelvin scale

Calculate the moles of new H₂ O₂ using the balanced formula below and the average moles of KMnO₄ from calculation #2. The average moles of KMnO₄ is 0.90mol. 2KMnO₄ + 5H₂O₂ + 3H₂SO₄ → K₂SO₄ + 2MnSO₄ + 8H₂O + 5O₂ Edit: I got 2.

How many grams of CaC2 would make 23.6g C2H2?

Shane performed the following trials in an experiment. Trial 1: Heat 30.0 grams of water at 0 °C to a final temperature of 40.0 °C. Trial 2: Heat 40.0 grams of water at 10.0 °C to a final temperature of 40.0 °C.

According to the law of conservation of ___ in an isolated system the initial total momentum before a collision equals the final total momentum.