Answer:
Explanation:
1. Apple: Characteristics - Red color, round shape, medium size.
- Physical Change: Cutting the apple into slices.
- Chemical Change: Apple slices turning brown when exposed to air.
2. Candle: Characteristics - White color, cylindrical shape, small size.
- Physical Change: Melting the candle wax when exposed to heat.
- Chemical Change: Burning the candle, where the wax reacts with oxygen to produce heat, light, and carbon dioxide.
3. Iron nail: Characteristics - Silver color, cylindrical shape, small size.
- Physical Change: Bending the nail with force.
- Chemical Change: Rusting of the nail when exposed to moisture and oxygen in the air.
4. Ice cube: Characteristics - Transparent color, cuboidal shape, small size.
- Physical Change: Melting the ice cube when exposed to heat.
- Chemical Change: Dissolving the ice cube in water, where the solid water molecules break down into liquid water molecules.
5. Paper: Characteristics - White color, flat shape, medium size.
- Physical Change: Folding the paper into different shapes.
- Chemical Change: Burning the paper, where the cellulose fibers in the paper react with oxygen to produce ash, heat, and carbon dioxide.
It's important to consider the specific characteristics and properties of each item when determining the possible changes they can undergo.
Answer: One idea for one item you could write on SLIME!
Explanation: for an idea for one item, you could do slime for characteristics you could write about the chemical change and of course, since slime sits out, you could write about the physical change for chemical change, you could write about how the chemicals make it smell.
B. One deciliter
C. One liter
D. One microliter
Answer:
d) one microliter
Explanation: The advantage of the SI (International system of measurements) is that everything is in base 10, and the prefix indicates the power of 10.
For the volume, the base unit is the liter.
one microliter = 0.000001 liter (one millionth, 1 / 1000000, of a liter)
one deciliter = 0.1 liter (one tenth, 1/10, of a liter)
one liter = 1 liter
one milliliter = 0.001 liter (one thousand, 1/1000, of a liter)
As you can see, a microliter is by far the smallest of these units.
The smallest volume unit among the given options (One milliliter, One deciliter, One liter, One microliter) is One microliter.
The volume of a substance is a measure of the space it occupies. In this case, we need to identify the smallest unit of volume from the given options. The unit, microliter (represented by µL), is the smallest volume unit among the options. Here's a quick breakdown:
So, the correct answer to your question is D. One microliter.
#SPJ2
B respiration
C pollination
D photosynthesis
Please help.
Answer:oxygen
Explanation:
Answer:
Mg has two valence electrons
Explanation:
Na has only one valence electron, so it readily donates that electron to other atoms to achieve an octet.
Mg must lose two valence electrons to get an octet. It takes extra energy to remove the second electron. In addition, the two electrons are in a filled s subshell, which has added stability.
Answer:
An electron is around 1800 times smaller than a proton
Explanation: