A student in science class observes a cell under the microscope and sees an organelle that only appears in plant cells. What is the organelle?
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What would happen if there no decomposers
3. A tea kettle holds aboutof water.2 mL200 mL2L200 L
Which is an example of a compound ?Water Gold Sand Iodine
How many atoms are in a molecule
species; heredity
B.
genotype; phenotype
C.
heredity; species
D.
phenotype; genotype
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genotype; phenotype
Genetic variation determines inherited differences between individuals . Our height or eye color are inherited from our parents, but our phenotype is also affected by environment such as the food we eat (diet), drugs we take, toxins surrounding us, climate, location, culture, physical accidents and lifestyle.
Answer: Option B
Explanation: Any organism can be defined by two factors one is its genotype and other one is its phenotype.
The genetic composition of the body of an organism can be said as its genotype. The genes are present inside the cell and determines the physical characters of an organism.
The phenotype can be defined as the physical appearance of the organism. Example: height, color of the organism.
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used to keep water, electricity and heat things as such to live
B amount of matter in a substance
c feree times distance-
D distance divided by the time
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Answer:
a
Explanation:
ability to cause change in matter or the capacity to do work
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CO2(s) is a solid.
CO2(g) means it is gas.
So they differ in their physical properties.
Physical propertiers means that they differ in their look.
or metalloid
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Answer:
nonmetal
Explanation:
go to ptable.com. it helps a lot
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Answer:
Explanation:
The formula of water is H₂O.
1. Calculate the molar mass of water
2 H = 2 × 1.008 = 2.016 u
1 O = 1 × 16.00 = 16.00 u
MM = 18.02 u
2. Mass of hydrogen
\text{Mass of H} = \text{92.0 g water} \times \dfrac{\text{2.016 g H}}{\text{18.02 g water }} = \textbf{10.29 g H}
3. Mass of 0xygen
Final answer:
A 92 gram sample of water will consist of approximately 10.22 grams of hydrogen and 81.78 grams of oxygen.
Explanation:
Water
consists of two hydrogen atoms and one oxygen atom. Therefore, it has a
molecular formula of H2O
. To find the mass of each element in a 92 gram sample, we need to know the molar mass of the elements and the compound. The molar mass of hydrogen (H) is about 1 gram per mole, and oxygen (O) has a molar mass of 16 grams per mole. So, the molar mass of water (H2O) is approximately 18 grams per mole (2*1 + 16). This means that in one mole of water, 2 grams are hydrogen and 16 grams are oxygen. If we scale this up to 92 grams, we find that there are approximately 10.22 grams of hydrogen and 81.78 grams of oxygen.
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