What is formed when two atoms of bromine bond together?(1) a monatomic molecule
(2) a diatomic molecule
(3) a heterogeneous mixture
(4) a homogeneous mixture

Gold can be flattened into an extremely thin sheet. The malleability of gold is due to the
(1) radioactive decay mode of the isotope Au-198
(2) proton-to-neutron ratio in an atom of gold
(3) nature of the bonds between gold atoms
(4) reactivity of gold atoms

Answers

Answer 1

Answer: Question One:
(2) A diatomic molecule

Question two:
(3) nature of bonds between gold atoms

More on question two:
Gold and metals in general are malleable because of the so called "sea of valence electrons", which is generally unstable allowing it to be malleable and conductive.

Answer 2

Answer: The answer for question 1 is (2) diatomic molecule.

The answer for question 2 is (3) nature of bonds

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Balance the following equations:__CuS2 + HNO3 →

__Cu(NO3)2 + __H2SO4 +

__N2O + ___H20

Answers

Answer:

50CuS2 + 260HNO3 = 50Cu(NO3)2 + 100H2SO4 + 80N2O + 3H2O

Explanation:

Which sentence best describes the process of convection? A. A rock melts when magma touches it. B. Water vapor in the air forms liquid water. C. Cool air sinks, which forces warm air to rise. D. Sunlight travels through space. Can i please get help!

Answers

convection is when cool air sinks and warm air rises. i am not 100% sure though

A fish may have hundreds of offspring at a time and only a small number can survive. which characteristics of fish might allow them to survive

Answers

Well depends on what type of fish the parent is but i guess you can say:
what they eat
teeth
instincts
color
venom
blending in,etc

When is the next lunar Eclipse and how do they happen?

Answers

°°The next Lunar Eclipse is on March 23, a Wednesday THIS YEAR - 65 days left!

°° A Lunar Eclipse happens when the moon passes directly behind the earth into its umbra, or, shadow. This can occur only when the sun, Earth and moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, a Lunar Eclipse can occur only the night of a full moon. The type and length of an eclipse depends upon the Moon's location relative to its orbital nodes. Isn't that cool?

↑ ↑ ↑ Hope this helps! :D

How does the modern periodic table arrange elements?A.
by atomic mass

B.
by atomic number

C.
by number of isotopes

D.
by electron mass

Answers

Answer:

B. By atomic number.

Explanation:

The atom is the most basic unit of matter with properties of a chemical element. The atom is the fundamental component of all matter. All atoms are made up of a central nucleus in which there are positively charged particles, the protons, around which other negatively charged particles, the electrons, move. The nucleus of the atom also has neutrons, which have a neutral charge.

The atomic number, which is represented by the letter Z, indicates the number of protons that are present in the nucleus of an atom. Determine the identity of an atom and its properties.

The atomic number is used to classify the elements within the periodic table of the elements.

By increasing atomic number

A race car travels on a circular track at an average rate of 125 mi/h. The radius of the track is 0.320 miles. What is the centripetal acceleration of the car?

Answers

Answer;

= 48,828.125 mi/hr²

Explanation and solution;

Centripetal acceleration is the rate of change of angular velocity. Centripetal acceleration occurs towards the center of the circular path along the radius of the circular path.

Centripetal acceleration is given by; V²/r ;

V = 125 mi/h and r = 0.320 miles

Thus; centripetal acceleration = 125²/0.320

=15625/0.320

= 48,828.125 mi/hr²

The centripetal acceleration is obtained from the quotient of the square of velocity and the radius. Hence, a= $( v^(2) )/(r)$ . Substituting the give, v=125 mi/h and r=0.320 mi, the answer is equal to 48,828.125 mi/ $hr^(2)$ .

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