True/False: A virus could have a mutation that makes it more transmissible (higherchance of spreading).

Answers

Answer 1

Answer:

Answer True

Explanation:

Related Questions

In an investigation that uses the scientific method, which step immediately follows making a hypothesis?
How many moles of chlorine gas would occupy a volume of 35.5 L at a pressure of 0.98 atm and a temperature of 373 K?
Cl(g) + H2----> HCl(g) +HDo interaction can occur at room temperature
Look at this picture of a whale shark.Which question about whale sharks is nonscientific?A) What do whale sharks eat?B) How big is the average whale shark’s mouth?C) Does a whale shark like having a large mouth?D)What happens to the water that enters a whale shark’s mouth?Chemistry Honors College level10th grader
How can filtering produce clean water from dirty water?

Which conversion of energy always occurs in a voltaic cell?(1) light energy to chemical energy
(2) electrical energy to chemical energy
(3) chemical energy to light energy
(4) chemical energy to electrical energy

Answers

The correct answer is option 4. The conversion of energy is from chemical to electrical energy. Voltaic cells are driven by a spontaneous reaction that produces an electric current. Voltaic cells are a type of electrochemical cell.

Calcium reacts with water. This reaction is represented by the balanced equation below. The aqueous product of this reaction can be heated to evaporate the water, leaving a white solid, Ca(OH)2(s).Ca(s) + H2O(l) ==> Ca(OH)2(aq) + H2(g)

Compare the electrical conductivity of the aqueous product in the reaction to the electrical conductivity of the white solid that remains after the water is evaporated from the solution.

Write the chemical name of the base produced in the reaction.

State one change in reaction conditions that will increase the rate of the reaction.

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Answer:

- Calcium is more conductive than calcium hydroxide.

- Calcium hydroxide.

- Addition of more either calcium or water to the reaction vessel

Explanation:

Hello,

In this case, based on the given reaction and information, calcium's electrical conductivity 0.298 106/(cm*Ω) which is a relatively high value compared to it its base has due to its large insolubility.

In addition, the name of the formed base is calcium hydroxide based on the IUPAC rules.

Moreover, the addition of more either calcium or water to the reaction vessel will generate more calcium hydroxide.

Best regards.

The aqueous product conducts electricity while the solid does not. Ionic solids do not conduct electricity, but ions dissolved in solution do.The chemical name of the base is calcium hydroxide.Increasing the temperature of the system would increase the rate of the reaction.

During radioactive decay, atomic nuclei of unstable isotopes: give off nuclear radiation

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If this is a true/false question the answer would be true. Since nuclear reactions involve the nucleus the nuclear radiation would need to be coming from the nucleus since the reaction is not happening anywhere else.

I hope this helps. Let me know in the comments if the question was asking something else or if my answer is unclear.

Answer:

Radioactive decay

Explanation:

Which compound contains both ionic and covalentbonds?
(1) CaCO3 (3) MgF2
(2) PCl3 (4) CH2O

Answers

Answer: The correct answer is option (A).

Explanation:

Covalent bonds are those bonds in which sharing of an electrons is present in between the two atoms. Generally this type of bonding is found when electro-negativity difference between is very less or zero.

Ionic bonds are those bonds in which complete transfer of an electrons from one atom to another atom is present.Generally this type of bonding is found when electro-negativity difference between two atoms is very large.

Compound $CaCO_3$ contains both ionic and covalent bonds.

Bond between carbon and oxygen atoms in carbonate ion is a covalent bond. Being a ploy-atomic ion it carries 2- charge.
Calcium ion being 2+ charge will form ionic bond with carbonate ion.

The answer is (1) CaCO3. The bond between C and O is covalent bond. And the bond between Ca2+ and CO3 2- ion is the ionic bond. So the compound CaCO3 satisfy this condition.

What are superconductors?a. Materials that need high heat to transfer energy
c. Materials that only transfer thermal energy
b. Materials that transfer energy with no resistance
d. Materials that convert thermal energy into potential energy User: ______ is/are usually the best conductor/s.
a. Metals
c. Air
b. Water
d. Minerals

Answers

Superconductors are materials that transfer energy with no resistance. Metals are usually the best conductors.

Superconductivity is a phenomenon characterized by zero electrical resistance at below critical temperatures. Metals are the best conductors because the molecules inside them are tightly packed, which allows electricity to travel efficiently.

Water is also a good conductor because of the ions and minerals in it. However, water itself is not a conductor of electricity.

The answer would be B

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as electrons are passed through the system of electron carriers associated with photosystem ii, they lose energy. what happens to this energy?

Answers

they break up and become only positive energy

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In the process of attempting to characterize a substance, a chemist makes the following observations: (a) The substance is a silvery white, lustrous metal. (b) The substance melts at 649 ∘C, (c) The substance boils at 1105 ∘C. (d) The density of the substance at 20 ∘C is 1.738 g/cm3. (e) The substance burns in air, producing an intense white light. (f) The substance reacts with chlorine to give a brittle white solid. (g) The substance can be pounded into thin sheets or drawn into wires. (h) The substance is a good conductor of electricity.