Observe the nature changing around your home. You can observe plants, animals, and parts of your actual home as you begin to notice changes in matter. Collect data for two examples of changes in matter. Use the Changes in Matter observation questions to determine if your examples are physical or chemical changes.Your answer should include two examples, the types of changes observed, and evidence of how the examples were formed. You can use this format:

Example 1:

Type of Change:

Evidence:

Answers

Answer 1

Answer:

Answer:

Example 1. One change I observed was when cooking, I needed to boil water. The water was later evaporated due to the increase of heat from the stove below the pot. Heat traveled and transferred from the stove to the pot then the water. This change is from liquid to gas.

Example 2. I was mixing sugar into my tea, the sugar dissolved into the tea. This is an example of dissolving a solid into a liquid. The tea took the properties of the sugar and turned the drink sweet.

Extra, taking a hot shower and steam leaves the shower. This change is of evaporation.

Explanation:

Hope this helps, even though it was late! <3 :)

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What makes an atom able to form a compound? * O different number of neutron than protons O unfilled outer electron shells O same number of protons as electrons O a positive ot negative charge of the nucleus

Answers

Answer:

same number of protons as electrons

Explanation:

The addition of a neutron can make an atom radioactive. When you change the number of protons in an atom, you will change the atom from one element to a different element. ... If you change the number of electrons in an atom, you will get an ion of the element.

What type of acid is sulfuric acid?a- Monoprotic
b- Diprotic
c- Triprotic
d- None of the above

Answers

The answer is Diprotic!

which part of earths interior is inferred to have convection currents that causes tectonic plates to move

Answers

Asthenosphere is inferred to have convection currents that cause tectonic plates to move because the material in this part of the mantle flows and can move plastically and convection is all about the movement of the magma,the hotter stuff rising towards the crust while the cooler stuff sinks deeper into the mantle.

Answer:

Correct answer: B). Global climate is changing due to burning of fossil fuels and deforestation.

Forest holds a large amount of carbon, plants are known to absorb carbon dioxide from the atmosphere as they grow, that carbon dioxide is stored in plants in the form of carbon in plant's roots, leaves and in the soil. When trees are cut down, that stored carbon is released in the environment in the form of carbon dioxide, which accounts for approximately 18% of global greenhouse gas emission.

The burning of fossil fuel like coal, petroleum, oil, gas for the energy purpose is one of the major contributors for the rising level of carbon dioxide in the atmosphere, which leads to global warming and affect the climate.

Hence, the correct answer would be option B.

Explanation:

What would happen if a decomposers were absent from the forest ecosystem?

Answers

there would be no way that the nutrients could go back into the ecosystem and there would be tons of dead animals lying around.

What is the IUPAC name for the compound ZnO?

Answers

The IUPAC name for the compound ZnO is zinc oxide.

The International Union of Pure and Applied Chemistry (IUPAC) is responsible for standardizing the naming of chemical compounds to ensure uniformity and clarity in chemical nomenclature. In the IUPAC system, chemical names are based on the elements present in the compound and their respective oxidation states.

In the compound ZnO, "Zn" represents the element zinc, and "O" represents the element oxygen. The oxidation state of zinc in this compound is +2, and the oxidation state of oxygen is -2. To form a neutral compound, one zinc ion (Zn²⁺) combines with one oxide ion (O²⁻) in a 1:1 ratio. Therefore, the IUPAC name for the compound ZnO is "zinc oxide."

Zinc oxide is a white powder that is commonly used in various applications, such as in the production of rubber, ceramics, and cosmetics. It is also used as a pigment in paints and as an additive in food products. The IUPAC naming system ensures that scientists and chemists worldwide can communicate effectively about chemical compounds and their properties.

To learn more about IUPAC name, here

brainly.com/question/33646537

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it's
Zn=Zinc
and O=Oxide
so it will be Zinc Oxide

4. How many moles are in 54.0 grams of Silver?54.0 g Ag x (108mol ag /1 g ag ) = 5,832 ag moles Ag

(Use the gray boxes to insert the values for the conversion factors.)

5. What is the mass of 6.3 moles of Sulfur?

6.3 mol S x ( / ) = g S

6. How many atoms are in 6.0 moles of Argon?

6.0 mol Ar x ( / ) = atoms of Ar

7. How many moles of Kr are in 112 g of Krypton?

112 g Kr x ( / ) = moles of Kr

8. How many moles are in 1.93 x1024 formula units of KF, potassium fluoride?

1.93 x1024 formula units x ( / ) = mol KF

(The next two problems need 2 step conversions - so there are two conversion factors (fractions) for the problem - remember the mole map - covert to moles first, then to the desired unit.)

9. How many atoms are in 86.2 g of Si (silicon)?

86.2 g Si x ( / ) x ( / ) = atoms of silicon

10. What is the mass in grams of 4.8 x 1024 atoms of Magnesium?

4.8 x 1024 atoms of Mg x ( / ) x ( / ) = g Mg

Answers

4. Molar mass of silver m Ms~=108 g/mol
Hence there are n=54*(1/108)=0.5 mols of Silver in 54 grams of Silver.

5. 6.3*(108/1)=680.4g

6. Avogadro's number : Na~=6.022×10^23.
6.0*(6.022*10^23/1)=36.132*10^23 atoms

7. Molar mass of Krypton : Mk=84 g/mol
112/84=1.33 moles of Kr

8. 1.93*10^24*(1/(6.022×10^23))=3.2 moles KF

9. Molar mass of Silicon : Ms=28 g/mol
86.2*(1/28)*(6.022×10^23/1)=18.5*10^23 atoms of silicon

10. Molar mass of Magnesium : M1=24 g/mol
4.8*10^24*(1/(6.022×10^23))*(24/1)=191 g Mg

Other Questions

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A buffering solution consists of both strong acids and bases. a. True b. False

Calculate the amount of energy released in the formation of one mole of BaSe bonds (not lattice energy). The radius of the barium ion is 1.35 Å, and the radius of the selenide ion is 1.98 Å. Note that 1Å=10−10m.