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4 years ago

How has technology helped to reduce the spread of infectious disease?

1 answer:

6 0

Technology is a wide spread human resource that many people use today, technology helps us cure fatal diseases or just the start of symptoms or getting sick. Technology has also helped us learn more about the world and what is
T was like before our time has come.

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What is the average atomic mass of beanium

Amiraneli [1.4K]

Beanium or signically Bn

$\\ \sf\ast\Rrightarrow Atomic\:Mass=137.327u$

Lets simplify with significant figures

$\\ \sf\ast\Rrightarrow 137.33u$

$\\ \sf\ast\Rrightarrow 137.3u$

$\\ \sf\ast\Rrightarrow 137u$

3 0

3 years ago

A 2 mole sample of F2(g) reacts with excess NaOH(aq) according to the equation above. If the reaction is repeated with excess Na

77julia77 [94]

Answer:

The amount of NaF produced is doubled.

(d) is correct option.

Explanation:

Given that,

A 2 mole sample of F₂ reacts with excess NaOH according to the equation.

The balance equation is

$2F_{2}+2NaOH\Rightarrow 2NaF +H_{2}O+OF_{2}$

If the reaction is repeated with excess NaOH but with 1 mole of F₂

The balance equation is

$F_{2}+2NaOH\Rightarrow 2NaF +2OH$

Hence, The amount of NaF produced is doubled.

(d) is correct option.

6 0

3 years ago

In the Bohr model of the atom, the electrons move in fixed, ________ paths around a dense, positively-charged nucleus. On the ot

trapecia [35]

Answer:

Answers are in parentheses.

In the Bohr model of the atom, the electrons move in fixed, (circular) paths around a dense positively-charged nucleus. On the other hand, the quantum mechanical model shows the probability of finding an electron as a (cloud) of negative charge.

6 0

3 years ago

How many joules of heat are absorbed to raise the temperature of 650 grams of water from 5.00c to it's boiling point, 100c

xenn [34]

Answer : The amount of heat absorbed are, 258485.5 J

Solution :

Formula used :

$Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})$

where,

Q = heat gained = ?

m = mass of water = 650 g

c = specific heat of water = $4.186J/g^oC$

$\Delta T=\text{Change in temperature}$

$T_{final}$ = final temperature = $100^oC$

$T_{initial}$ = initial temperature = $5^oC$

Now put all the given values in the above formula, we get the final temperature of copper.

$Q=650g\times 4.186J/g^oC\times (100-5)^oC$

$Q=258485.5J$

Therefore, the amount of heat absorbed are, 258485.5 J

7 0

3 years ago

In the

Kipish [7]

Answer: An acid-base reaction is the transfer of a proton from a proton donor ... The reaction between a Brønsted-Lowry acid and water is called acid ionization.

Explanation:

5 0

2 years ago

Read 2 more answers