All categories

3 years ago

List any five items that can be found in a Science portfolio

Chemistry

1 answer:

ad-work [718]3 years ago

6 0

Answer:

physical projects

Journal entries

Materials

Lab reports

Artworks

Explanation:

Definition of a Portfolio:

Portfolio can be defined as a physical collection of student work that includes materials such as written assignments, completed tests, artwork, lab reports, physical projects and other material evidence of learning progress and academic accomplishment, including awards and honors,

A portfolio is a long-term form of self reflection and assessment that students do together.

Portfolios are a great way to demonstrate the competencies you would list on a resume or talk about in a science interview

You might be interested in

On a day wilderness expedition you'll need to heat of water to the boiling point each day. The air temperature will average . Yo

AlladinOne [14]

Answer:

Your question is not complere. but maybe it is like:

5 day expedition.

you'll need to heat 4.0kg

Air Temperature: 25 °C

each canister has 75 g

The standar heat of formation of propane at 25°C is −103.85 / kJmol...

If the data is not exactly the same, you can follow the same steps.

Explanation:

Given:

Weight of water = 4.0 kg = 4000 g

Boiling point = 100 °C (T2)

Initial T ° Water= 25 °C (T1)

Specific heat capacity water (Cs) = 4.184 J / g°C

Then

Energy (q) = m x Cs x (T2-T1)

q = 4000 g x 4.184 J / g°C x (100-25) °C

q = 1255200 J per day

For 5 days the amount of energy will be 5xq = 6276000 J = 6276 kJ

Then we know that the standard heat of formation of propane at 25°C is −103.85kJ/mol. Also, Molecular Weight propane= 44,1 g / mol

Then we can know how much propane it's needed:

Mass= 6276 kJ÷103.85 kJ / mol = 60.43 mol

Mass of propane= 60.43 mol × 44,1 g/mol = 2664.9 g

So, if each canister has 75.g of propane:

Number of canister= 2664.9 g ÷ 75.g = 35.53 = 36 canisters

4 0

3 years ago

Read 2 more answers

3. (05.04 MC)

Alex73 [517]

Answer:

1.10 g H2

Explanation:

8 0

3 years ago

Consider the reaction between aluminum and oxygen in a closed container. The equation for this reaction is:

kolbaska11 [484]

Answer:

D. For every 4 atoms of aluminum and 3 molecules of oxygen gas, 2 units of the compound of aluminum and oxygen are produced.

→ This is true. For every 4 atoms of aluminium and 3 molecules of oxygen 2 units of aluminiumoxide will be produced.

Explanation:

Step 1: The balanced equation

4Al + 3O2 → 2Al2O3

A. On the product side of the equation above, there are 2 atoms of aluminum and 3 atoms of oxygen.

→ This is false. On the product side (2Al2O3) we have 4 atoms of Al and 6 atoms of oxygen

B. The 3 in front of O2 represents 3 atoms of oxygen.

→ This is false. The 3 means 3 oxygen (O2) molecules. Each molecule contains 2 oxygen (O) atoms.

C. The number of atoms, molecules, and ions of reactants is equal to the number of atoms, molecules, and ions of the products.

→ This is false. the number of atoms in the reactants is the same as the number of atoms in the product. ... However, the number of molecules in the reactants and products are not the same. The number of molecules is not conserved during the reaction

D. For every 4 atoms of aluminum and 3 molecules of oxygen gas, 2 units of the compound of aluminum and oxygen are produced.

→ This is true. For every 4 atoms of aluminium and 3 molecules of oxygen 2 units of aluminiumoxide will be produced.

4 0

4 years ago

Interpolate: Use the equation to determine what the student enrollment in 2003 likely was.

sdas [7]

Answer:

1244 students

Explanation:

That would be y = 82*3 + 998

= 1244.

5 0

4 years ago

Read 2 more answers

The continued use of __________ often causes insects to become __________ to the chemical compounds.

Ivanshal [37]

The continued use of pesticide often causes insects to become immune to the chemical compounds.

Pest control agents are compounds known as pesticides. Herbicides, insecticides, nematicides, molluscicides, piscicides, avicides, rodenticides, bactericides, repellents for insects and animals, microbicides, fungicides, and lampricides fall under this category.

Cancers, birth deformities, reproductive injury, immunotoxicity, neurological or developmental toxicity, including endocrine system disturbance are just some examples of documented chronic consequences. The impacts of pesticides are more likely to affect some people than most others.

Therefore, The continued use of pesticide often causes insects to become immune to the chemical compounds.

To know more about insects

brainly.com/question/2398122

#SPJ4

3 0

2 years ago

List any five items that can be found in a Science portfolio​

List any five items that can be found in a Science portfolio