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jekas [21]
3 years ago
15

CONCLUS Your conclusion will include a summary of the lab results and an interpretalion of the results. Please answer al questio

ns in complele sentences using your own words Using two to three sentences, summarize what you investigated and observed in this lab What I observed in this lab was what materials to use for different things. I also learned how to make things sturdier. 2 What building malerial did you use to build your house? My house is made.autof brick and/or clay brick and wood. 3 Did your results support or fail to support your hypotheses? Type Here IN 4 What were the densities of the malerials you chose for the was ond floor for the home in Thy Worlar Type Here Why do you think a building material's density is important when building homes or architectural structures? Type Here Why wouldn't you choose wood or aluminium for the lalches on your house? Type Here Help Improve Office Notes​

Chemistry
1 answer:
Alex787 [66]3 years ago
7 0

Answer:

Here’s the answer

Explanation:

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Name a device or other object whose major purpose is to convert
Alenkinab [10]

Answer:

Storage battery oe cell

Explanation:

The storage battery or cell is a device that coverts chemical energy into light energy when required.

During charging of battery, there is some chemical changes in the battery and absorb energy. The absorbed energy is converted into electrical energy when connected to an external load.

Hence, the correct answer is "Storage battery or cell".

4 0
4 years ago
2.
zlopas [31]

Answer:

A. modern organisms closely resembling fossils

Explanation:

Fossils are defined as the preserved remains or traces of living organisms from past.

Fossils are considered as an evidence for evolution because they represent the existence of life on earth and shows the difference between the life in past that life on earth today. With the help of fossil, it is easy to determine the age of fossils which further help to determine that how modern organisms have evolved from the past.

Hence, the correct answer is "A. modern organisms closely resembling fossils".

7 0
3 years ago
What is the total number of atoms present in 5Na,PO.?
denis23 [38]

Answer:

3.01×10²⁴ atoms

Explanation:

Our compound is the Na₃PO₄

Sodium phosphate.

We assume, we have 5 moles of the mentioned salt.

1 mol of anything contains 6.02×10²³ atoms.

That's the Avogadro's number. The conversion is:

5 mol . 6.02×10²³ atoms /1mol = 3.01×10²⁴ atoms

6 0
3 years ago
How many atoms are in 6.3 moles of calcium
KIM [24]
1 mol --------- 6.02x10²³ atoms
6.3 moles ---- ??

atoms = 6.3 * 6.02x10²³

= 3.7926x10²⁴ atoms

hope this helps!
6 0
3 years ago
The reaction represented by this graph is an exothermic reaction. According to the graph, which statement is true? Reactants hav
Sunny_sXe [5.5K]

Answer:

Reactants have more energy than products

Explanation:

Generally, in an exothermic reaction heat is released. In other words, energy is released. So you start with reactants which have a set amount of stored chemical energy, and you lose some in the reaction. Since energy is 'leaving', the stored chemical energy in the products is less than what we started with in the reactants. When given a graph, you can tell this is true because going from left to right, the line representing the stored chemical energy will start at a higher level than where it ends.

7 0
3 years ago
Read 2 more answers
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