When you turn on a battery powered flash light you transform what two kinds of energy

An experiment requires 47.9 g g of ethylene glycol, a liquid whose density in SI units is 1114 kg/m3 k g / m 3. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder.

What particles in an atom can increase or decrease without changing the identity of the element?

N a nuclear reaction, mass must be lost to produce energy. true or false

What is the name of NaHSO4 (s) ? Select one: a. sodium sulphate b. sodium hydrogen sulphate c. monosodium bisulphate d. sodium hydrogen sulphur tetraoxide

If the ribosomes of a cell were destroyed what effect would this most likely have on the cell

Hydrogen sulfide gas and sulfur dioxide gas react to form solid sulfur and water. If 10.0g of gaseous hydrogen sulphide is mixed with 10.0g of gaseous sulfur dioxide, how many grams of solid sulfur can form?

What do scientists do during data collection? O A. Analyze information to form a summary B. Gather information during an experiment C. Observe and ask scientific questions O D. Design an experiment to test a hypothesis

Organic molecules always: A. contain carbon. B. contain carbon, hydrogen, and oxygen respectively in a 1:2:1 ratio. C. are produced by living organisms. D. dissolve in water.

Whats the scientific notation of 0.00000923

A catalyst increases the rate of a chemical reaction by