What can scientists measure to provide evidence that electrons can move from one energy level to another?

A manufacturer of bicycles has 4250 wheels, 2755 frames and 2255 handlebars. How many bicycles can be manufactured using these parts? a. 2125 complete bicycles b. 2255 complete bicycles c. 2755 complete bicycles d. 4250 complete bicycles e.

What can I draw or write about that's related to science?

Types of nuclear reactions include fission, fusion, and (1) single replacement (2) neutralization (3) oxidation-reduction (4) transmutation

What is the density of aluminum in pounds per cubic inch?

Consider this reaction: Fe2O3 + S → Fe + SO2 Reduction half-reaction: 2Fe+3 + 6e - → 2Fe Oxidation half-reaction: S → S+4 + 4e - After balancing the chemical equation, what are the coefficients for these compounds? Fe & SO2

Which statement is true for a pure compound but NOT true for a pure element?

Which one is uncelluar and which is multicelluar? crab or pond organism

An atom of lithium loses an electron. What is the effect of this event? Group of answer choices The atom of a different element is formed. The atom of lithium acquires no charge. The atom of lithium becomes a positively charged ion.

Water interacts with polar substances like - OH groups but not with non-polar substances like methyl (-CH3) or ethyl groups (-CH2). Using this information, select the molecules that will easily dissolve in water based on polarity not on size.

Which of the following statements is not considered weather? The wind is blowing 20 miles per hour right now in Kansas. It is raining in Seattle. It is usually humid in Florida. It is snowing in Colorado.