Select all of the elements that are classified as metals.


gold

helium

sodium

aluminum

sulfur

Answer:

Part A: Solid objects with a greater mass per unit of volume are more dense.

Part B: Objects with a lower mass per unit of volume are less dense.

Explanation:

Not sure if this answers your question!

Answer:

A: solids

B: gases

Explanation:

Not sure if this is the answer you are looking for, but if it is hope it helps.

no problems

Answer: 2

Explanation:

The Answer is 0.001156.

Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome

Explanation:

rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.

Answer:

hold on i will help you soon

The period of time when sexual intercourse takes place between two organisms is called mating. However, all the matings need not end in fertilization.

The gestation period is a time when the embryo develops completely into a fetus. This is usually from the time of fertilization to the time of giving birth.

Let us take the comparison of the gestation period of 3 mammals.

The gestation period of a cow varies from 279- 287 days. The mating between the bull and cow occurs during the heat or oestrus period of the cow. At that time the bull mounts on the cow or vice-versa may happen during the mating period. This is termed bulling.

In the case of horses, the gestation period is 320-380days. The mating ritual in a horse is a bit different than in a cow. It usually has three phases of sexual behavior which includes: courtship, mating, and post mating behavior. During courtship, the stallion which is the male horse will approach the mare, prance, sniff her, nuzzle her, and groom her. The mare which is the female horse may squeal, kick, or move away to show the stallion that she is not ready. When the mare is receptive to breeding, she may stand still, deviate her tail, and urinate, leading the stallion to mount her. It usually breeds well in pastures than in controlled environmental breeding conditions.

Whereas in camels, the gestation period is far longer than in cows and horses. It is about 360-440days. The male camel displays its organ called a dulla to show out is ready for mating. The male camel Urinates on its own tail and swishes it over its back so that the Urine contains female-attracting pheromones. It shows distinct violent behavior towards other male camels. The female camel undergoes an estrous cycle in the breeding season which lasts receptive for 3-4 days, and non-receptive following the other 10 days. In the receptive period, the camel sits down and exposes its genitalia for the male camel to copulate. The whole mating takes about 20 minutes and is accompanied by gurgling and frothing by the male and bleating by the females.

It should be noted that African elephants have longer gestation periods like Asian elephants whereas no other animal has a longer gestation period than an elephant or a shorter gestation period than mice.

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Explanation:

4.iodine would be used to test for sugar

6. mass is constant everywhere while weight differs from place to place due to gravity changes

Lithium is a soft, silvery-white, metal that heads group 1, the alkali metals group, of the periodic table of the elements

Answer:

The correct answer is D: The time it takes the cheetah to travel 110 kilometers.

Explanation:

To find distance, you need to use the formula d = st, or distance equals speed times time. Therefore in order to get the accurate distance, use this formula to help.

Hope this helped, have a good day!

Answer:

Metalloids are found along the line between metals and non-metals on a periodic table. They are chemical elements that have properties in between those of metals and non-metals. ... Noble gases are all in group 18 on a periodic table.

Explanation:

c) Digestive.

The stomach, pancreas, gall bladder are all present in the digestive system.

Answer: The correct fill-in-the-blank answers are:

1. through binary fission (already filled in)

2. be resistant to penicillin

3. through asexual reproduction.

4. cell replicates before

5. a simpler process

Explanation:

The correct fill-in-the-blank answers are:

1. Bacteria reproduce through binary fission (already filled in)

2. A parent bacterial cell is able to survive in the presence of antibiotic penicillin. Subsequent generations from this parent will be resistant to penicillin

3. Something that potatoes and bacteria have in common is that they both reproduce through asexual reproduction.

4. In asexual reproduction DNA from the parent cell replicates before it produces daughter cells.

5. Asexual reproduction is a simpler process than sexual reproduction.

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To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.

Therefore, the mass of Betelgeuse is about 17.634 kg/ 9.5 times the mass of Vega.

Vega is a main-sequence star located in the constellation Lyra. Betelgeuse is a red supergiant star located in the constellation Orion. The mass of Betelgeuse is observed to be about 20 times the mass of the Sun, while the mass of Vega is estimated to be about 2.1 times the mass of the Sun. Therefore, the mass of Betelgeuse is theoretically estimated to be around 9.5 times the mass of Vega.

Experimentally,

The mass of Betelgeuse is 2.188 x10^31 kg

The mass of Vega is 4.246 x 10^30 kg

Hence, the mass of Betelgeuse is about 17.634 kg/ 9.5 times the mass of Vega.

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Answer:

hmm

Explanation:

I don't know

Answer:

for question 8 the answer is a waste material

Answer:

1) Photosynthesis takes place in plants leaves.

2) Air containing carbon dioxide moves into plants leaves through tiny openings in the leaves.

3) Soil contains the water a plant needs for making food

Explanation:

Answer:

C. Be in the same group

Explanation:

Most elements in the same group have similar properties.

Copper and gold have similar reactivity properties, thus they are most likely to belong to the same group. Thus option C is correct.

The reactive properties or the chemical properties of an element have been based on the presence of the valence electrons in the atom.

The valence electrons in the atom are responsible for the bond formation and other intermolecular interactions thereby contributing to the reactivity of the atom.

In the periodic table, on moving down the group, the number of valence electrons to the atoms remains constant with the increase in the size of the atom. Thus, the elements belonging to the same group have consisted of similar reactivity properties.

Copper and gold have similar reactivity properties, thus they are most likely to belong to the same group. Thus option C is correct.

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Answer:

true, false, 0

Explanation:

Answer:

1. False: metallic character decreases as you move from left to right.

2. Nobel gas is your best bet since Helium has the lowest melting point.

3. False: scale can refer to small or large.

4. 1 chlorine atom

Answer:

vulnerable to :)

Explanation:

A penicillin-resistant parent bacteria cell's subsequent generations of bacteria from this parent will be resistant to penicillin. The third option is correct regarding the antibiotics.

The antibiotics are given to kill the bacteria and remove the bacterial infection from the body, but when the bacteria come into contact with the antibiotics for a long time, they will become resistant to them. This is called "antibiotic resistance," as neither the antibiotics nor the bacteria can harm each other now.

Antibiotic resistance is harmful to humans because it necessitates a high dose of antibiotics when infections occurs. This drug has many side effects and can harm the body as well. When the bacteria become resistant to the antibiotic penicillin, all the next generations will be resistant to the antibiotics.

As a result, the correct answer is the third option, which states that future generations will be resistant to penicillin.

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Answer:

39

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Answer:

b

Explanation:

i hope this helps, wish u luck

Answer: D or only 2 correctly describe the importance of soil

Explanation: Don't know what to put here.

It's the day after... Oops

Answer:

B I think

Explanation:

improved soil structure and soil aggregation, recycling of soil nutrients, and water recycling.

Answer:

May be thay can be tropical in south east and wet in middle, hot in west and cold in north.

Explanation:

(Sunny, windy, cloudy, cold, foggy, rainy, snowy, clear, warm(peace), hot(uncomfortable))

BRAINLY ME PLEASE IF HELPFUL!!!