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3 years ago

Can I get some help?

Chemistry

1 answer:

Brut [27]3 years ago

6 0

Yes, of course))))))

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In an ecosystem, which of the fcHlowing is NOT a trait of living organisms?

Alex777 [14]

Answer:

responds to a stimuli or made of cells with membrane

Explanation

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3 years ago

What are 3 main ways an object can accelerate

asambeis [7]

Answer:

There are following three ways in which a object can accelerate....

1...speeding up

2.... slowing down

3... changing direction

hope it help you✌✌✌✌✌

Explanation:

4 0

2 years ago

Read 2 more answers

For a reaction:

torisob [31]

Looking at the equation .look at the moles noted below

Ca(OH)_2=1mol
NH_2Cl=2mol.
CaCL_2=1mol
NH_2=2mol
H_20=2mol.

There is 2 moles of NH2Cl.

Hence limiting reagent is Ca(OH)_2

Moles at reactant=3

Moles at product=5

Moles left:-

$\\ \sf\longmapsto 5-3=2mol$

$\\ \sf\longmapsto pV=nRT$

$\\ \sf\longmapsto 1.5V=2(8.3)(27)$

$\\ \sf\longmapsto 1.5V=448.2$

$\\ \sf\longmapsto V=\dfrac{448.2}{1.5}$

$\\ \sf\longmapsto V=298.8mL$

7 0

3 years ago

How many protons and neutrons are in an atom of ^249 Bk?

umka21 [38]

Bk has an atomic number of 97 meaning that there are 97 protons and 152 neutrons.

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3 years ago

What is the wavelength of radiation that has a frequency of 7.2×10^11 s−1 ?

Airida [17]

Explanation:

It is known that relation between wavelength and frequency is as follows.

$\lambda = \frac{c}{\nu}$

where, $\lambda$ = wavelength

c = speed of light = $3 \times 10^{8} m/s$

[/tex]\nu[/tex] = frequency

It is given that frequency is $7.2 \times 10^{11} s^{-1}$ . Hence, putting this value into the above formula and calculate the wavelength as follows.

$\lambda = \frac{c}{\nu}$

$\lambda = \frac{3 \times 10^{8} m/s}{7.2 \times 10^{11} s^{-1}}$

= $0.416 \times 10^{-3} m$

or, = $4.16 \times 10^{-4} m$

Thus, we can conclude that wavelength of given radiation is $4.16 \times 10^{-4} m$ .

6 0

3 years ago