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Paladinen [302]
3 years ago
9

A cheetah is an organism that observes chase and catches its pery what kind of energy is that A mechanicle kenetic to chemical t

o mechanicle kenetic B mechanicle potential to mechanicle kenetic to chemical C mechanicle potential to chemical to mechanicle kenetic D mechanicle kenetic to mechanicle potential to chemical
Chemistry
1 answer:
Temka [501]3 years ago
4 0

Answer:

C mechanical potential to chemical to mechanical kinetic

Explanation:

When the cheetah observes it prey, it does not move at all and remains still in one place. This is potential energy.

To chase after its prey or to pounce on it, the cheetah would require energy. This is obtained by its body by performing certain chemical activities that generate energy that help it to move.

When the cheetah finally undergoes this, it has enough energy to finally come out of hiding and chase its prey. This is kinetic energy as while doing so, the cheetah is in motion.

Hope it helps.

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1. How would you explain that energy in animals' food was once energy
Tju [1.3M]

Answer:

The energy released from food was once energy from the sun that was captured by plants in the chemical process that forms plant matter (from air and water). Food provides animals with the materials they need for body repair and growth and the energy they need to maintain body warmth and for motion.

4 0
4 years ago
Read 2 more answers
Read the given expression. X = number of protons − number of core electrons Which of the following explains the identity of X an
shepuryov [24]

<u>Answer: </u>The correct statement is X is the effective nuclear charge, and it increases across a period.

<u>Explanation:</u>

We are given that:

X = number of protons − number of core electrons

Effective nuclear charge is defined as the actual nuclear charge (Z = number of protons) minus the screening effect caused by the electrons present between nucleus and valence electrons. These electrons are the core electrons.

The formula used for the calculation of effective nuclear charge given by Slater is:

Z^*=Z-\sigma

where,

Z^* = effective nuclear charge

Z = atomic number or actual nuclear charge or number of protons

\sigma = Screening constant

The effective nuclear charge increases as we go from left to right in a period because nuclear charge increases with no effective increase in screening constant.

Hence, the correct answer is X is the effective nuclear charge, and it increases across a period.

5 0
4 years ago
What would be the mass in grams of 8.94 x 10 22 formula units of copper(II) fluoride, CuF 2
Nadya [2.5K]

The mass in grams of 8.94×10²² formula units of CuF₂ is 15.07 g

<h3>Avogadro's hypothesis </h3>

6.02×10²³ formula units = 1 mole of CuF₂

But

1 mole of CuF₂ = 101.5 g

Thus,

6.02×10²³ formula units = 101.5 g of CuF₂

<h3>How to determine the mass of 8.94×10²² formula units of CuF₂</h3>

6.02×10²³ formula units = 101.5 g of CuF₂

Therefore,

8.94×10²² formula units = (8.94×10²² × 101.5 ) / 6.02×10²³

8.94×10²² formula units = 15.07 g of CuF₂

Thus, 8.94×10²² formula units are present in 15.07 g of CuF₂

Learn more about Avogadro's number:

brainly.com/question/26141731

#SPJ1

5 0
2 years ago
5. How many moles are there in 222.3 grams of Ca(OH)2? (1) 1.5 mol (3) 5.5 mol (2) 3.0 mol (4) 22.3 mol 5​
tensa zangetsu [6.8K]

Answer: (2)3.0 mol

Explanation: 222.3g= 222.3/74= 3.0 mol

1mol Ca(OH)2 is 74g

6 0
3 years ago
The nuclear mass of 56fe is 55.9207 amu. calculate the binding energy per nucleon for 56fe.
Aneli [31]

Fe (iron) has 26 protons,30 neutrons and 26 electrons. In order to calculate the binding energy, first you need to find the total mass of all particles in the nucleus:

<span>
<span>26 x mass of proton + 30 x mass of neutron ( all in a.m.u.) = say "m" </span></span>

<span>
Mass defect is m- 55.9207 amu, then convert it into grams and put in equation E = mc2 to get binding energy of Fe.</span>

<span> Divide it by number of nucleons to get binding energy per nucleon</span>.

8 0
3 years ago
Read 2 more answers
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