All categories

3 years ago

Kindly answer the following questions.

Chemistry

2 answers:

LenaWriter [7]3 years ago

4 0

Answer:

i cant tell you that

i dont know

i cant tell you that

black

yes

answering this question

Explanation:

Lilit [14]3 years ago

4 0

Answer:

Heyya!

Here are your answers along with the questions:-

<h2>1 Ques:- In which class are you ? </h2><h3>Ans:- I study in 10th Grade!</h3><h3 /><h2>2 Ques:- In which country are you living ? </h2><h3>Ans:- I live in the U.A.E - United Arab Emirates!</h3><h3 /><h2>3 Ques:- How many percent do you get in your previous class ?</h2><h3>Ans:- I am not sure of that....I don't check my percentages just marks..but last term's marks would be about 90% I guess.</h3><h3 /><h2>4 Ques:- Which is your fav. colour ? </h2><h3>ANS:- I love the color BLUE!</h3><h3 /><h2>5 Ques:- Do you like dogs ? </h2><h3>Ans:- Yeah I do !</h3><h3 /><h2>6 Ques:- Worst experience in your life ? </h2><h3>Ans:- I've had many bad experiences but the worst was when I almost lost my little brother at a mall and then we had to search for him for an hour. We had to run everywhere to find him and ask every single security guard whether they had seen him...I was super super scared cause I love my little bro so much and when we finally found him, he was simply standing near some ice-cream shop in the mall and chilling there..he was just 4 years at that time..oh god..i was super relieved to find him then!</h3><h3 /><h3><u>That's it! Hope my answers were clear!</u></h3>

You might be interested in

Explain why you can not use a physical reaction to separate elements that are chemically bonded together

Rainbow [258]

Their atoms are too tightly bonded to each other for them to be separated by a physical reaction

3 0

3 years ago

If a mole of hydrogen reacts with a mole of oxygen to produce water, what is the excess reactant?

nirvana33 [79]

Answer:

there is no excess

Explanation:

6 0

4 years ago

Read 2 more answers

Which gases in the following list exist as separate atoms: hydrogen, helium, nitrogen, oxygen, neon.

iris [78.8K]

helium and neon ( answer C)

6 0

3 years ago

Read 2 more answers

Explain why the boiling point of br2 (59°c) is lower than that of iodine monochloride, icl (97°c), even though they have nearly

vfiekz [6]

<span>The boiling point of bromine (br2) is lower than iodine monochloride (icl) because icl molecules have a higher melting point. Also, the atoms of iodine monochloride have more electrons causing the intermolecular forces between iodine forces to be stronger. As the iodine forces are stronger, the boiling point will be higher.</span>

6 0

4 years ago

Read 2 more answers

What heavier element is created when hydrogen atoms fuse together in the sun’s core?

sergey [27]

Answer:

Helium is created from hydrogen in the sun's core.

Four hydrogen-1 nuclei fuse to produce

one helium-4 nucleus, two neutrons,
two positrons, and
two electron neutrinos.

Explanation:

Step One:

${\rm ^1_1 H + ^1_1 H\to ^2_1 H + e^{+}} + v_e$ .

Two hydrogen-1 nuclei fuse. One proton will convert to a neutron. The products will be

one hydrogen-2 nucleus,
one positron, and
one electron neutrino.

Step Two:

$\rm ^1_1 H +^2_1 H \to ^3_2 He$ .

There are plenty of hydrogen-1 nuclei available in the core of the sun. The hydrogen-2 nucleus from step one will fuse with a hydrogen-1 nucleus. The product is

one helium-3 nucleus.

Step Three

$\rm ^3_2 He + ^3_2 He \to ^4_2 He + ^1_1 H + ^1_1 H$ .

Two helium-3 nuclei from step two react with each other. The products are:

one helium-4 nucleus, and
two hydrogen-1 nuclei.

The overall reaction will be:

${\rm 6\; ^1_1 H \to ^4_2 He + 2\; ^1_1 H+2\; e^{+}}+v_\text{e}$ .

${\rm 4\; ^1_1 H \to ^4_2 He + 2\; e^{+}} + v_\text{e}$

In other words, hydrogen nuclei in the core of the sun fuse together to form helium.

6 0

3 years ago