Answer & explanation:
SI units are the metric system and the most commonly used measurement system in the world. Some examples of these units you may find around your home are:
Pencil lead size measured in millimeters. (Ex. 0.7mm)
Microwaves, you put your food in for a number of seconds. Any other device used to time things also does this, such as a stopwatch.
A ruler or tape measure will measures in centimeters or meters usually.
A balance or scale may be used to measure mass in grams.
Solid products like antiperspirant, lipstick and other solid makeup products are usually measured in grams.
Solid foods such as butter are usually measured in grams.
Information about the contents of food found on the nutrition facts label are usually measured in grams or milligrams. (Ex. 3g of saturated fat)
Answer:
loose hair, flammable clothing, and all stored chemicals especially flammable liquids., should be kept away from heat.
A fire blanket is a highly flame-resistant blanket that can be used to extinguish a small fire or to wrap around a person in case of a fire and water helps put it out too.
Light would be more consistent being made up of particles rather than waves.
Answer:
-) 2-methylbut-2-ene
-) 2-methylbut-1-ene
-) 3-methylbut-1-ene
Explanation:
in this case, the hydration of alkenes is a <u>marknovnikov reaction</u>, this means that the "OH" group would be added in the <u>most substituted carbon</u> of the double bond. (Figure 1)
For 2-methylbut-2-ene the most substituted carbon is the <u>tertiary carbon</u> (the carbon in the right of the double bond), so we will obtain the desired molecule. In 2-methylbut-1-ene the most substituted carbon is again the <u>tertiary carbon</u> (the carbon in the bottom of the double bond), so we will obtain 2-methyl-2-butanol. Finally, for 3-methylbut-1-ene the carbocation would be formed on carbon 3, this is a secondary carbocation. We can obtain a most stable carbocation if we do a <u>hydride shift</u> (Figure 2). With this new molecule is possible to obtain 3-methylbut-1-ene.
Honestly, its based on your preference but the best recommended one would be loam. I use loam too, and it is really good for growing the plants.
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