An unknown substance has a mass of 15.5 g. When the substance absorbs 1.395*102 J of heat, the temperature of the substance is raised from 25.0 ∘C to 45.0 ∘C. What is the most likely identity of the substance?

How many moles of bromine are needed to produce 5 moles of aluminum bromide

Determine whether each of the following solutes is more soluble in hot water or cold water. a. sulfur dioxide b. chlorine c. helium d. sucrose e. sodium chloride

If you burn 23.4 g of hydrogen and produce 209 g of water, how much oxygen reacted?

For the reaction where Δn=-1Δn=-1, what happens after in increase in volume?? KQ>K so the reaction shifts toward reactants. For the reaction where Δn=0Δn=0, what happens after in increase in volume?? KQ>K so the reaction shifts toward reactants.

What is the formula of the compound formed between chlorine (Cl) and calcium (Ca) ?

Sodium (Na) reacts with chlorine gas (Cl2 ) to form sodium chloride (NaCl) as shown in the equation: 2Na + Cl2 → 2NaCl If 4 moles of chlorine gas react, how many moles of sodium will react?

What are transuranium elements properties?

A geologist finds a section of rock that shows was ripple marks. What does it he pr send me or a ripple marks say about the area where the rock formed? A. the rock from rk s in a fast moving stream B.

375centimetercube of a gas has a pressure of 770mmHg. find it's volume if the pressure is reduced to 750mmHg

How did the planets in our solar system form?