Answer:
<u>Peter Stuyvesant</u> (1592–1672) was the last director-general of the New Amsterdam and is <u>famous for expanding this colony and building several landmark projects, such as Broadway</u>.
With a true dutch spirit of running a settlement, he <u>addressed the fire issue in the city with a number of improvements</u>. In order to reduce the risk of fire, colonists were commanded to <em>remove wooden chimneys and replace roofs made of thatch</em>, because they presented a fire hazard. He also introduced <em>first fire wardens</em> in the New Amsterdam, which laid foundation for the first fire department in the United States.
In addition, Stuyvesant <em>set speed limits</em> on the streets of New Amsterdam and <em>directed taverns to be closed at 9 p.m.</em> to reduce drunk fighting on the streets.
<u>The acids DO NOT return the pink phenolphthalein indicator. </u>Phenolphthalein in acidic solutions remains colorless but in basic solutions takes a pink color. Phenolphthalein is a weak acid. The indicator changes color, it can be magenta or pink with a pH value of 10.
Answer: One-group pretest-posttest design.
Explanation: A one group pretest-posttest design, is used by researchers to determine the effect of treatment on a particular group. This is done by pretesting a group, modifying or treating the same group and posttesting the group again.
If the results of the pretest and the posttest is significantly different then the difference can be attributed to the modification after the pretest.
Answer:
salt water or sea water
Explanation:
because NaCl is equal to salt (sodium chloride), and H2O means water- 2hydrogen and oxygen.
and sea water/salt water is a form of solution in salt with water.
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