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3 years ago

Saftey goggles are worn in the lab-

Chemistry

1 answer:

Harrizon [31]3 years ago

4 0

Answer:

Yes

Explanation:

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Balancing chemical equations

mojhsa [17]

2H2 + O2 → 2H2O

okay???

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3 years ago

4K + O2 + 2K20 Which statement is true?

Jet001 [13]

Answer:

yes 4K + O2 ------>2K20 is true.

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2 years ago

Balanced nuclear equation forces the alpha decay Po-210

Serjik [45]

Answer:

$_{84}^{210}\text{Po} \longrightarrow \, _{82}^{206}\text{Pb} \, + \, _{2}^{4}\text{He}$

Explanation:

Your unbalanced nuclear equation is:

$_{84}^{210}\text{Po} \longrightarrow \, _{x}^{y}\text{Z} + \, _{2}^{4}\text{He}$

The main point to remember in balancing nuclear equations is that the sums of the superscripts and the subscripts must be the same on each side of the equation.

Then

84 = x + 2, so x = 84 - 2 = 82

210 = y + 4, so y = 210 - 4 = 206

Element 82 is lead, so the nuclear equation becomes

$_{84}^{210}\text{Po} \longrightarrow \, _{82}^{206}\text{Pb} \, + \, _{2}^{4}\text{He}$

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3 years ago

The general rule of thumb is that the (smaller or larger) a substance's atoms and the (stronger or weaker) the bonds, the harder

Luda [366]

Answer is: The general rule of thumb is that the smaller a substance's atoms and the stronger the bonds, the harder the substance will be.
If the distance between atoms is higher, lesser will be attraction between electrons and protons of atoms, smaller distance means stronger atoms attraction.

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3 years ago

Which of the following is a mixture? steel water oxygen gold

Natasha_Volkova [10]

Water is the answer out of all the other options

6 0

3 years ago

Saftey goggles are worn in the lab- ​

Saftey goggles are worn in the lab-