Is a backpack a good resource
for a rescue team?

Answer:0.085

Explanation:

Answer:

Gains energy by eating other living things

The statement 'gains energy by eating other living things' is a characteristic shared by both primary and secondary consumers (Option D).

In conclusion, the statement 'gains energy by eating other living things' is a characteristic shared by both primary and secondary consumers (Option D).

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Answer:

I can't see the picture so I can't answer

Answer:

(A) Hair is made of mostly tightly packed living cells.

Explanation:

i just took the exam :) yw

a like would be nice thanks!

Answer:

A

Explanation:

Just did the exam :) Good Luck!

Answer:

1. 0.3457g

2. 7650mL

3. 216000 seconds

4. 10080minutes

5. 2400 seconds

6. 173.99cm

7. 70283.2g

8. 137.16metres

9. 4.968miles

10. 3.105miles

Explanation:

1. 1000mg = 1g

345.7 mg = 345.7/1000

= 0.3457g

2. 1kL = 1000000mL

0.00765 kL = 0.00765 × 1000000

= 7650mL

3. 1 day = 86400s

2.5 days = 2.5 × 86400

= 216000 seconds

4. 1 week = 10080minutes

1.000weeks is equivalent to 1 week, hence there are 10080minutes in 1.000week.

5. 1minute = 60seconds

40.0minutes = 40 × 60

= 2400seconds.

6. 1 inch = 2.54cm

68.5inches = 68.5 × 2.54

= 173.99cm

7. 1Ib = 16oz

155Ibs = 155 × 16

= 2480 oz

1 oz = 28.34 g

2480oz = 2480 × 28.34

= 70283.2g

8. 1 foot = 12 inches

450 feet = 450 × 12

= 5400inches

1 inch = 0.0254metres

5400 inches = 5400 × 0.0254

137.16metres

9. 1 metre = 0.000621 mile

8000 metres = 8000 × 0.000621

= 4.968miles

10. 1 kilometers = 1000 metres

5km = 5 × 1000

= 5000metres

1 metre = 0.000621 mile

5000metres = 5000 × 0.000621

= 3.105miles

Answer:

55.16 grams of gold contain same number of atoms as 7.72g AI contain

Answer:

you shoudl ask this question more clearly?

Explanation:

Answer:

The 20th Element is Calcium (Ca).

The 20 Elements are:

Hydrogen

helium

lithium

berilium

boron

carbon

nitrogen

oxygen

flourine

neon

sodium

magnesium

aluminium

silicon

phosphorus

sulphur

chlorine

argon

potassium

calcium

Answer:

c

Explanation

they have different properties now

Answer:

true

Explanation:

Answer:

true

Explanation:

all cells will have plasma membranes

Answer:

260 g

Explanation:

Data obtained from the question include:

Mole of cobalt (Co) = 4.41 moles

Mass of cobalt (Co) =...?

The mole of a substance is related to its mass according to the following equation:

Mole = mass / Molar mass.

With the above formula, we can obtain the mass of 4.41 moles of cobalt as follow:

Mole of cobalt (Co) = 4.41 moles

Molar mass of cobalt = 59 g/mol

Mass of cobalt (Co) =...?

Mole = mass /Molar

4.41 = mass / 59

Cross multiply

Mass of cobalt = 4.41 × 59

Mass of cobalt = 260 g

Therefore, the mass of 4.41 moles of cobalt is 260 g

Answer: It will sink

Explanation:

To solve this we must be knowing each and every concept related to carbon monoxide. Therefore, carbon monoxide float to the top of the room.

When the carbon in fuels burns inefficiently, a toxic gas known as carbon monoxide is created. It is emitted both naturally—from forest fires or volcanic eruptions, for example—and artificially—through procedures. It is lighter than the air.

By attaching to and removing oxygen from myoglobin, carbon monoxide reduces the oxygen storage capacity in muscle cells, which is another way it upsets the body's processes. If carbon monoxide (CO) leaked into your home, carbon monoxide float to the top of the room. Numerous manufacturing and medicinal items employ carbon monoxide.

Therefore, carbon monoxide float to the top of the room.

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It is incorrect because it should have a total of eight electrons with two electrons between each H and O

Lewis structure shows the form of bonds that occur in the valence electrons of an element or compound

This bonding usually occurs in covalent bonds

Valence electrons are electrons used in a chemical bond

The main group elements usually have valence electron configurations in the ns and np subshells, While the transition elements in the subshells (n-1) d and ns.

Element O has 6 valence electrons

Element H has 1 valence electron

To achieve stability, the element O needs 2 more electrons which are obtained from 2 electrons from the H element, while the H element needs 1 electron to be stable

So that a covalent bond is formed

Answer:

This process is considered as a cycle because it continues and dosent stops. This process includes the evaporation of watet from earth surface due to heat.this water is converted in to water vapours. After reaching clouds it condences back. When the clouds become heavy with watef it falls back on earth as rain.and the process repeats.

Explanation:

In the calorimeter, the heat received is the same as the heat released  

Q abs = Q release

Heat can be calculated using the formula:  

Q = mc∆T  

Q = heat, J  

m = mass, g  

c = specific heat, joules / g ° C  

∆T = temperature difference, ° C / K  

Q released by a metallic ore and absorbed by water at calorimeter

Q ore = Q water

m = 0.5 kg = 500 g

c = 4.18 J/g–°C.

Δt = 24.3 - 22 = 2.3

[tex]\tt Q=m.c.\Delta t\\\\Q=500\times 4.18\times 2.3=4807~J[/tex]

Q ore = Q water = 4807 J

m ore = 3.5 kg = 3500 g

Δt = 100 - 24.3 = 75.7

[tex]\tt 4807=3500\times c\times 75.7\\\\c=0.018~J/g^oC[/tex]

Answer:

1. C

2. A

3. B

Explanation:

I took the Assignment

The material with highest specific heat is water.

The material with lowest specific heat is lead.

The material that has the ability to absorb twice as much heat as aluminium is wood.

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Answer:

it dependes on the material

Explanation:

what is the material

Answer:

it doesnt

Explanation:

The amount of material does not reflect on its tendency to sink or float because that depends on density which is an intensive property.

Answer: a. atominc number= protons= 33

neutrons= mass- atominc number

80-33= 47 neutrons

b.35 protons

46 neutrons

hope this helps

Answer:

you can use the example of two magnets

Answer: The gravitational force Increase as the objects get closer.

Explanation:

Answer:

nucleus formed

prophase

metaphase

anaphase

telophase and cytokinesis

You need to find the entropy of fusion in order to find this out.

Answer:

7.49 × 108

Explanation:

Scientific notation is a way to express numbers in a form that makes numbers that are too small or too large more convenient to write. It is commonly used in mathematics, engineering, and science, as it can help simplify arithmetic operations. In scientific notation, numbers are written as a base, b, referred to as the significant, multiplied by 10 raised to an integer exponent, n, which is referred to as the order of magnitude:

Answer:

false

Explanation:

Answer:

64

hopeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

During freezing, water molecules lose energy and do not vibrate or move around as vigorously. This allows more stable hydrogen-bonds to form between water molecules, as there is less energy to break the bonds. ... Thus water expands as it freezes, and ice floats atop water.

When water molecule freezes, the water molecules have slowed down enough that their attractions fixed them into fixed positions.

The term freezing is defined as a phase transition where a liquid converted into a solid when its temperature is lowered below its freezing point.

The freezing point is the temperature at which a liquid turns solid. In the freezer, for example, water-filled ice cube trays.

Water molecules freeze in a hexagonal pattern, with molecules further apart than when the water was liquid. It is worth noting that the molecules in ice would be vibrating.

Thus, When water freezes, the water molecules slow down to the point where their attractions arrange them into fixed positions.

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Answer:

The formula is: p=mv

(P)momentum is equal to (m) mass times (v) velocity.

Explanation: