PHYSICS MIDDLE SCHOOL

An atom that no longer has a beutral charge is called a(n)____.

Answers

Answer 1
Answer:

An atom that no longer has a neutral charge is called an ion


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HIGH SCHOOL

A compound is a pure substance that is composed of more than one type of element. Which of the following statements is true of compounds?. . A.Compounds can be decomposed into their component parts through physical processes.. . B.There is only one type of compound, so they all have similar characteristics and compositions.. . C.Compounds have definite chemical compositions that can be described by chemical formulas.. . D.Compounds have properties which are identical to the properties of their component elements..

Answers

"Compounds have definite chemical compositions that can be described by chemical formulas" is the statement that is true of compounds. The correct option among all the options that are given in the question is the third option or option "C". I hope that the answer has come to your help.
The correct answer is c. Compounds have definite chemical compositions that can be described by chemical formulas.
HIGH SCHOOL

Fire extinguishers and fire blankets should be mounted on a surface that is painted ____.

Answers

Fire extinguishers and fire blankets should always be mounted on a surface that is painted red. This is a bright color and easy to locate. It makes it much safer for people that need to find these objects on quick notice.
COLLEGE

Calculate the depth in the ocean at which the pressure is three times atmospheric pressure.
Atmospheric pressure is 1.013 × 10^5 Pa. The acceleration of gravity is 9.81 m/s^2 and the density of sea water is 1025 kg/m^3
Answer in units of m

Answers

The pressure is three times atmospheric pressure at a depth of 20.1 m.

Given information:

Atmospheric pressure is 1.013 × 10⁵ Pa. The acceleration due to gravity is 9.81 m/s² and the density ρ of sea water is 1025 kg/m³

Let the depth at which the pressure is three times the atmospheric pressure be h:

Then the pressure is given by:

Learn more about pressure:

brainly.com/question/6984092?referrer=searchResults

Explanation:

Assuming constant density, the pressure at a depth h is:

P = Patm + ρgh

3 (1.013×10⁵ Pa) = 1.013×10⁵ Pa + (1025 kg/m³) (9.81 m/s²) h

h = 20.1 m

MIDDLE SCHOOL

Describe the relationship among temperature , heat , and thermal enegy​

Answers

Answer:

In science heat and temperature are related to each other. Heat is the total energy of molecular motion in a  substance while temperature is a measure of the average energy of molecular motion in a substance. So,  thermal energy comes from a substance whose molecules and atoms are vibrating faster due due to a rise in temperature.

Explanation:

hope it helps

COLLEGE

When adjusted for any changes in ΔH and ΔS with temperature, the standard free energy change ΔG∘T at 2400 K is equal to 1.22×105J/mol . Calculate the equilibrium constant at 2400 K .

Answers

Answer:

K=0.0022

Explanation:

ΔG° = 1.22×10⁵ J/mol

Temperature (T) = 2400 K

ΔG° = - RT ln K

where R is gas constant whose value is 8.314 J/Kmol

           K  is equilibrium constant

           ΔG° standard free energy

ln K =

K =  

K =

K= 0.0022

hence equilibrium constant value is K=0.0022

MIDDLE SCHOOL

a grasshopper has a mass of 10g, it jumps 30m high ,assuming gravity is 10n what is the gpe of the grasshopper at the top of the jump

Answers

gpe is mass times gravity times vertical height = 10x10^-3x10x30=3 joules

MIDDLE SCHOOL

Scientist who discovered that arms contain an electric charge

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If you meant atoms, it would be J.J. Thompson.
MIDDLE SCHOOL

Which species below is an ionic compound?
A) NaF
B) CO2
C) AlAs
D) OF2

Answers

A The answer to the question A)NaF
A) NaF is the answer
MIDDLE SCHOOL

What principle of light’s behavior can be used to make a far away object appear closer and also make a small object appear larger?

Answers


The REFRACTION of light waves is often used to do that.

Refraction is how the objective lenses and mirrors work in telescopes.

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