Is moss a decomposer?
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11. The density of liquid chloroform is 1.48 g/mL. What is its density in units of lb/in?(2.54 cm = 1 in., 2.205 lb = 1 kg)
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Answer:
3=8908-=698=49=304=+74950=405=0381=01=20
55555%
Explanation:
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One mechanism is enzyme induction.
Enzymes are proteins, which are metabolically expensive to produce. It makes evolutionary sense that your body makes less digestive enzymes such as lactase and sucrase when they're not needed. If your diet changes, your body can gradually increase the production of some enzymes through a process of enzyme induction.
For example, the production of lactase enzyme can be increased in some lactose-intolerant individuals by feeding them lactose . Also, studies in rats have shown that other carbohydrate-digestiYour body makes more of what it needs, and less of what it doesn't need--brilliant!ng enzymes, such as sucrase-isomaltase, trehalase, and maltase-glucoamylase--can be induced by hydrocortisone administration.
Atoms in the liquid water move more slowly.
Atoms in the liquid water move more quickly.
More hydrogen bonds form between the molecules.
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Hope this helped
Final answer:
When water changes from a liquid to a solid, the atoms move slower and form more hydrogen bonds, giving ice its solid structure.
Explanation:
When liquid water transforms to a solid state (i.e. ice), the motion between water molecules changes. Hydrogen bonds are actually formed, not broken. Because of the decrease in temperature, atoms in the liquid water start to move more slowly, not quickly. This slower movement allows for more hydrogen bonds to form between the water molecules, which is what essentially gives ice its solid structure.
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B. 39 protons, 30 neutrons, 30 neutrons
C. 39 protons, 30 neutrons, 39 electrons
D. 30 protons, 39, neutrons, 30 electrons
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Answer:
D. 30 protons, 39 neutrons, 30 electrons
Explanation:
The atomic number (Z) is the number of protons (p) in the nucleus. Since
Z = 30, p = 30.
In a neutral atom, the number of electrons (e) equals the number of protons. Since p = 30, e = 30.
The mass number (A) is the number of protons plus the number of neutrons (n).
A = p + n
For an atom of zinc-69,
69 = 30 + n Subtract 30 from each side and transpose
n = 39
Zinc has the chemical symbol Zn and the atomic number 30. D. 30 protons, 39, neutrons, 30 electrons
What is Zinc
Zinc has the chemical symbol Zn, and its atomic number is 30. This means that every atom of zinc contains 30 protons in its nucleus.
An atom of zinc-69 (Zn-69) is one that contains:
- 30 protons (since zinc has an atomic number of 30).
- 39 neutrons (subtract the atomic number from the mass number: 69 - 30 = 39).
- 30 electrons (in a neutral atom, the number of electrons is equal to the number of protons).
So, the correct option is option d 30 protons, 39 neutrons, 30 electrons.
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In general, nonmetals form covalent bonds, metals and nonmetals form ionic bonds, and metals form metallicbonds.
What are non-metals?
Non-metals are natural materials that do not generate heat or electricity and are structurally brittle, making them difficult to roll, mold, extrude, or press.
Non-metallic elements in the periodic table include hydrogen, carbon, nitrogen, oxygen, phosphorus, arsenic, and selenium.
Ioniccompounds are formed when metals and nonmetals combine, whereas covalent compounds are formed when nonmetals combine with other nonmetals.
Metal atoms have only a few electrons in their outer shell, whereas non-metal atoms have many electrons.
This means that metals are more likely to react with nonmetals. Electrons transfer from the metal to the nonmetal when it reacts with it.
Thus, there will be covalentbonding between nonmetals.
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Answer:
The ionic bond is formed due to an electrostatic force of attraction between two oppositely charged ions. This bond is usually formed between a metal and a nonmetal. Prior to the electrostatic attraction, there is a total transfer of valence electrons from one atom to the other atom.
Explanation: hope that helps
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Answer:
42 m/s
Explanation:
To we convert units for speed we can use dimensional analysis. First thing we do is seperate the measurement into a fraction. After this we can multiply by 1km over 0.62137 miles. We do this so that the miles cancel out.
×
=
After this we can use a conversion factor and divide by 3.6.
÷ 3.6 = 42 m/s