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madreJ [45]
3 years ago
9

We can change a gas to liquid by _____ the temperature and ______ the pressure.

Chemistry
1 answer:
mina [271]3 years ago
6 0
Decreasing incresing
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A solution has a hydronium concentration of 1.3 x 10^-3M. What is the ph of the solution?
Serjik [45]

Answer:

2.89

Explanation:

pH=-log(H+)

- Hope that helps! Please let me know if you need further explanation.

7 0
3 years ago
6. Macromolecules represent which level of organization in the body?
hodyreva [135]

Answer:

Chemical

Explanation:

Macromolecules are part of the chemical components of cells. For example, DNA, proteins, and lipids.

Cells of similar types/function form tissues. Different types of tissues interact together to form organs. Organs form a common function.

6 0
3 years ago
When does absorption occur in infrared spectroscopy
Vladimir79 [104]

Answer: hopefully this is right UwU

Explanation: The infrared spectrum of a sample is recorded by passing a beam of infrared light through the sample. When the frequency of the IR is the same as the vibrational frequency of a bond or collection of bonds, absorption occurs. Examination of the transmitted light reveals how much energy was absorbed at each frequency (or wavelength).

5 0
2 years ago
Which statements accurately describe binary star systems? Check all that apply. have more than two stars have stars that are alw
Westkost [7]

Answer:

have stars that might appear to wobble

often have one star that is brighter than the other

Explanation:

A binary star system is a star system made up of mostly two stars that moves round their common fixed center.

The two orbiting stars are gravitationally bonded to one another and they move round each other.

Most binary stars might appear wobble. One of the stars often appears brighter than the other.

6 0
3 years ago
Read 2 more answers
which two quantities are used to predict gravitational force according to Newton's law of universal gravitation a. mass and spee
NISA [10]

Answer:

(b). Mass and distance.

Explanation:

The gravitational force between two objects is given by Newton's law of universal gravitation. The formula is as follows :

F=G\dfrac{m_1m_2}{r^2}

Here,

G is universal gravitational constant

r is the distance between two objects

It is very clear that the gravitational force is directly proportional to the product of masses and inversely proportional to the square of the distance between them.

Hence, the two quantities are used to predict gravitational force according to Newton's law of universal gravitation are mass and distance.

7 0
3 years ago
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