What are the words that describe how matter changes state

Answers

Answer 1
Answer: "Phase" describes a physical state of matter. The key word to notice is physical. Things only move from one phase to another by physical means. If energy is added (like increasing the temperature) or if energy is taken away (like freezing something), you have created a physical change. 

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Help on question 1b please? (image attached)

Answers

I believe your answer Is C. An ammonia molecule has a trigonometrical pyramidal shape. Figure C has a has a trigonometrical pyramidal shape.

I hope I help

Why do less dense compounds make up Earths crust while the densest compounds make up the core

Answers

bc the more dense the stronger they are so they would be at the center. it is like you wouldn't put the heavier that the top you would put it at the bottom to hold the lighter up . so its the same thing you wouldn't put the lighter, less dense, in the middle and the heavier, more dense, on the outside bc it would just crumble.

What is called what a scientist personal opinion affects the way experimental results are reported?A. Bias
B. Classifying
C. Inductive reasoning
D. Procedure

Answers

Answer;

A. Bias

If the personal opinion of a scientist affects the way that the experimental results are reported, that is called bias.

Explanation;

-An experimenter bias, is a process where the scientists performing the research influence the results, in order to portray a certain outcome.

-Bias is among the factors that makes a qualitative research much more dependent upon experience and judgment than quantitative research.

-Bias in a research may arise from experimental errors and failure to consider all the possible variables and also when the researchers select the subjects that are more likely to generate the desired results.

The answer would be A.Bias because the scientist can form a Bias opinion based on his beliefs 

When are tides highest? a. during the moon’s first quarter phase b. when the sun, Earth, and the moon are nearly in a line c. during the moon’s third quarter phase d. when the moon is at a right angle to the sun

Answers

Answer:

The correct answer is option b, that is, when the Sun, Earth, and the moon are nearly in a line.

Explanation:

The low and high tides are caused by the moon. The gravitational force of the moon produces something known as the tidal force. This force makes the Earth and its water to bulge out on the side nearest to the moon and the side far away from the moon. These bulges of water are considered as high tides.  

Similarly to the moon, the Sun also causes tides, but, they are smaller in comparison. However, when the Earth, moon, and the Sun line up, that is, which takes place during the new moon or the full moon, the solar and lunar tides reinforce each other, resulting in more extreme tides, known as spring tides. The spring tides are considered as the highest tides.  

The answer is B. when the sun,earth, and the moon are nearly in a line

Water from a lake changes to a gas state in the process of what?

Answers

The scientific term is evapouration but heating works too
Of heating. Or when the lake is exposed to boil because of the temperature.

If the pH of a solution is 5.3, what is the pOH?
A.5.3
B.4.7
C.8.7
D.9.3

Answers

The correct answer is C) 8.7

What does pH answer mean?

The pH of a solution indicates the acidity or basicity of the answer. A solution is said to be neutral if the pH is 7, if the pH fee is less than 7 then it is acidic in nature and if the pH cost is greater than 7 then the solution is simple in nature.

What does pH stand for?

Ph may appear as it belongs at the periodic desk of factors, however, it's truly a unit of size. The abbreviation pH stands for ability hydrogen, and it tells us how an awful lot hydrogen is in drinks—and the way active the hydrogen ion is.

What's the pH of a solution?

PH is a measure of the attention of H+(aq) ions in an answer. The attention of H+ ions may be stated in mol dm(-three), but the use of the log(10) feature simplifies the numbers concerned. Definition: pH is the terrible logarithm to base 10 of the hydrogen ion awareness in an aqueous solution.

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