What are the different rows called

Plssss helppp<br> will mark brainliest

alexdok [17]

I’m don’t kill me if I’m wrong but I think it’s high melting point

7 0

3 years ago

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What type of epithelium would be most suited for high levels of diffusion and filtration?

NemiM [27]

Sorry the answer might be a little late but it would be <span>Simple squamous</span>

6 0

3 years ago

Which is not a reason why mass of an atom is expressed in atomic mass units rather than in grams?

Tasya [4]

What are your answer choices? Scientists express the weight in AMU’s so that they can easily think about the weight of the atom. If it is expressed in grams, they’re constantly dealing with a weight that’s around 10^-24 grams, which is hard to deal with.

8 0

3 years ago

This question in the screenshot

Morgarella [4.7K]

Mass of hydrate + crucible = 47.29 g

Mass of anhydrous salt = 2.7 g

Molar mass of anhydrous salt CuSO4 = 159.5 g

Given,

mass of empty crucible = 42.45 g

mass of hydrate salt= 4.84 g

mass of crucible after first heating = 46.1 g

mass of crucible after second heating= 45.153 g

mass of crucible after third heating= 45.15 g

so, as per the question we need to find...

Mass of hydrate + crucible = ? g

Mass of anhydrous salt = ? g

Molar mass of anhydrous salt CuSO4 = ? g

∴Mass of hydrate + crucible = 42.45 + 4.48 = 47.29 g

The given salt is in hydrate form, to remove water from this molecule we need to perform heating .

So we are taking the substance into the crucible as it is in less quantity.

Here, we performed heating 3 times and note the weight after every heating.

After this, assume that the water is totally evaporated and the remaining salt is in anhydrous form,

∴ Mass of anhydrous salt = 45.15 - 42.45 = 2.7 g

To find the molar mass of anhydrous salt of CuSO4,

atomic weight of Cu = 63.5 g

atomic weight of S = 32 g

atomic weight of O =16 g

∴ molar mass of anhydrous salt of CuSO4 = 63.5 + 32 + (16 ×3)

=159.5 gm

Learn more about molar mass here...

brainly.com/question/837939

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5 0

2 years ago

Write BE if the statement is Beneficial Effect to the sun’s heat and light, HE if it is Harmful Effect of the sun’s heat and lig

mrs_skeptik [129]

Based on exposure time and place, the Sun's radiation may have harmful or beneficial effects.

<h3>What is solar radiation?</h3>

Solar radiation refers to the radiation from the Sun in the form heat, light and other forms of radiation.

The radiation from the Sun may have harmful or beneficial effects.

The effects of the Sun's radiation can be classified as BE, HE or SP as follows:

BE- UV rays can help treat some health conditions. It creates Vitamin D
SP- Use sunblock lotion with SPF 15 during hot days.
BE- With the presence of sunlight, farmers can dry their crops.
HE- UV rays can damage the tissue in your eyes.
BE- Research says that sunlight helps moods.
HE- Too much exposure from the sun can cause skin cancer.
SP- Use sunglasses when you stay under the sun.
SP- Wear a wide- brimmed hat on sunny days.
BE- Humans can do recreational activities on a sunny day.
SP- Wear sunglasses that filter UV light.
HE- Prolonged exposure to the sun’s heat makes your skin age faster than normal.
HE- Too much heat from the sun can cause heat stroke and loss of water.
BE- Sunlight helps strengthen your immune system.
BE- The vitamin D made thanks to the sun plays a big role in bone health.
SP- Avoid sun in the middle of the day, from about 10 a.m. to 3 p.m.

Learn more about Sun's radiation at: brainly.com/question/921530

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6 0

1 year ago