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3 years ago

!!!!!!!!!!!!!!!???? hElP!!!!!!!!!!!!

Chemistry

2 answers:

n200080 [17]3 years ago

8 0

Transparent and Translucent.

Opaque materials do not allow any light to pass through. An easy way to remember this is to understand that the prefix trans- means to pass or cross (thing about the words transport or transfer). The prefix trans on both of these words tell you that light can PASS through.

kakasveta [241]3 years ago

5 0

I think the answer is transparent and translucent

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T/F___ At the eutectic composition, an alloy can solidify at a constant temperature.___ For effective dispersion strengthening,

azamat

Answer:

TRUE
FALSE
TRUE
FALSE
FALSE
TRUE

Explanation:

At the eutectic composition, an alloy can solidify at a constant temperature : TRUE . this is because at eutectic composition the type of reaction that takes place there is invariant reaction in its thermal equilibrium
For effective dispersion strengthening, the dispersed phase should be needle-like, as opposed to round : FALSE. because the rounded shape will not cause a crack.
Intermetallic compounds are usually hard and brittle : TRUE. because Intermetallic compounds prevents dislocation movements and this makes them brittle and hard
For the effective dispersion and strengthening, the dispersed phase should be continuous : FALSE. this is because the dispersed precipitate must be small and not continuous
Stoichiometric intermetallic compounds exist over a range of compositions : FALSE
Faster solidification results in smaller interlamellar spacing : TRUE

4 0

3 years ago

Plastic is used for making a large variety of articles of daily use and these articles are very attractive. But it is advised to

boyakko [2]

Answer:

please select my answer as brainlist answers

Explanation:

plastic is harmful for the environment

4 0

3 years ago

Read 2 more answers

Imagine that one tree outside your home looks unhealthy, although all the other trees seem healthy and strong. Describe how you

Westkost [7]

Answer:

Hypothesis---experiments----results----conclusion.

Explanation:

First we make a hypothesis means a statement about why the tree looks unhealthy. In this segment of scientific method we have to test the hypothesis through experimentation. After that we have to take the readings of various parts of the tree and analyze the data to find out the problem. In the next step, we have to made the results on the basis of the data that is obtained. In the last we have to write the conclusion of the analysis and see the hypothesis.

5 0

3 years ago

Hey can u answer this pls

Dmitry_Shevchenko [17]

The answer to your question is DNA!!!!! :)

5 0

3 years ago

Read 2 more answers

What is the mole ratio of D to A in the generic chemical reaction? 4A + B --> C + D

storchak [24]

<h3>Answer:</h3>

Mole ratio of D to A is 1 : 4

<h3>Explanation:</h3>

We are given the generic chemical equation;

4A + B → C + D

We are supposed to determine the mole ratio of D to A

What is mole ratio?

Mole ratio is the ratio of the number of moles of reactants or products in a chemical reaction.
We determine the mole ratio using the coefficients of reactants or products in question.

For example;

In the equation, 4A + B → C + D, the coefficient of A is 4 while the coefficient of D is 1.
This means, 4 moles of A reacts with 1 mole of b to produce 1 mole of C and 1 mole of D
Thus, mole ratio of D to A is 1 : 4

6 0

3 years ago