The gopher tortoise is native to North America. It digs burrows in the sandy soil of its habitat. These burrows are commonly used by more than 350 different species. Over the 20th century, the gopher tortoise population decreased by 80%. The top threats to the tortoise have been:

habitat loss, fragmentation, and degradation due to roads, construction, mining, and agriculture
the methods humans use to get rid of rattlesnakes that shelter in the tortoises’ burrows
disease and predation
Solutions to these problems that are currently being used include:

Tortoises whose habitats are threatened can be relocated elsewhere for about $3,000 each.
Downsides: temporary solution, spreads disease, new location may not be safe

Laws have been passed forbidding the use of noxious gases or chemicals on tortoise burrows.
Downsides: difficult and costly to enforce

Gopher tortoise conservatories are being established to protect habitats for the tortoises.
Downsides: tortoise populations are too small and spread out to be stable
How can these three solutions be combined to reduce their downsides?

Tortoises from
could be relocated to
where laws protecting them are

Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly

One or more substances changing into one or more substances is an example of a

Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.