CHEMISTRY HIGH SCHOOL

Which explains why carbon is a component of so many elements?A. It appears in more than one form
B. It is the most abundant element
C. It can react with both metals and nonmetals
D. It can form stable compounds with other elements

Answers

Answer 1
Answer: Carbon is a component of so many elements because It can form stable compounds with other elementsand also bond with them.

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The central core of an atom is called thea. reactor vessel.
b. neutron.
c. proton.
d. nucleus.

Answers

Answer:

The central portion is called neutron.

Explanation:

An atom has a central part known as nucleus and outer shells.

The central nucleus contains protons (the positively charged sub atomic particle) and neutrons (the neutral sub atomic particle).

The outer portion has negatively charged sub atomic particle known as electrons.

The atomic number of an element is the number of protons present in the nucleus.

Answer:

The Answer is Nucleus

Explanation:

The Nuleus is the brain of the atom always like the "boss"

Green plants need light in order to survive Structures in the leaves absorb light, which in turn, helps plants make theirown tood
Under which color of light will plants be least likely to make food?
red
blue
orange
green

Answers

Answer:

The color of light in which plants are less likely to produce food is green.

Explanation:

Photosynthesis is the process by which plants take advantage of sunlight to convert it into chemical energy, necessary to manufacture their nutrients, their growth and development.

Plants do not absorb all the colors of the light spectrum, since due to their pigments they absorb colors with specific wavelengths. Green plants do not absorb the color green, but reflect it —due to the chlorophyll pigment— which gives the green color to those leaves.

For this reason, the light that plants take least advantage of to produce food is green light.

Other options:

    The colors blue, orange and red can be absorbed by the plant, to a lesser or greater degree.

Answer:

it would be green

Explanation:

How are HNO3(aq) and CH3COOH(aq) similar?(1) They are Arrhenius acids and they turn blue litmus red.
(2) They are Arrhenius acids and they turn red litmus blue.
(3) They are Arrhenius bases and they turn blue litmus red.
(4) They are Arrhenius bases and they turn red litmus blue.

Answers

Answer:The correct answer is option (1).

Explanation:

Arrehinius acid are those which gives hydronium ion H_3O^+ when dissolved in water.

Arrehinius base are those which gives hydroxide ionOH^- when dissolved in water.

HNO_3(aq)\rightarrow H^+(aq)+NO_(3)^(-)(aq)

CH_3COOH(aq)\rightleftharpoons CH_3COO^-(aq)+H^+(aq)

Both nitric acid and acetic acid are Arrhenius acids.And they turn the color of blue litmus paper to red color.

Hence, the correct answer is option (1).

A certain radioactive atom has 90 protons and 142 neutrons. If this atom undergoes alpha decay, what is the mass number of the daughter atom? The mass number of the daughter atom is .

Answers

Answer:

228

Explanation:

alpha decay is removing alpha particle _2^(4)He

2 number of protons, 4 mass number = 2 protons + 2 neutrons

We have

      90 protons and 142 neutrons

      - 2 protons         -  2 neutrons

      88 protons         140 neutrons

Mass number of new (daughter) atom = 88 +140 = 228

Answer:

Correct Answer: 228

Explanation:

alpha decay is removing alpha particle

2 number of protons, 4 mass number = 2 protons + 2 neutrons

________________________________________________

We have:

_______________________

90 protons and 142 neutrons

     - 2 protons         -  2 neutrons

     88 protons         140 neutrons

Mass number of new (daughter) atom = 88 +140 = 228

Hope I helped you\ Have a great day / good luck on your studies :)

True or false: Denaturation of an enzyme increases the rate at which it may catalyze a chemical reaction.

Answers

The answer is False. Hope this helps.

What is the speed of a man that travels 2 meters in 6.5 seconds?

Answers

  • Answer:

≈ 0.31 m/s

  • Explanation:

v = d/t

= 2m/6.5s

= 0.3079 m/s

≈ 0.31 m/s

Answer:

0.305556 m / s

Explanation:

Speed = distance / time

2 metres = 0.002 km

6.5 sec = 0.00180556 hrs

Therefore,

Speed = 0.002 / 0.00180556

           =  1.1 km / hr

           = 0.305556 m / s
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