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Kazeer [188]
3 years ago
13

Part 1. Find AHra for these chemical reactions. Tell if each is endothermic or exothermic.

Chemistry
1 answer:
strojnjashka [21]3 years ago
6 0

Answer:

1 is ur answer

Explanation:

but add me on ps4 faded4_twenty

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Base your answer to this question on the information below.
marusya05 [52]

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How many grams are in 4. 5 moles of sodium fluoride naf.
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Which of the following is an element?<br> A. MgBr<br><br> B. HCl<br><br> C.O<br><br> .D. Cu(SO4)3
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3 years ago
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What is the pH of a solution with a [H+] = 2.5 x 10-8 M?
iris [78.8K]

Answer:

<h2>7.6</h2>

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ {H}^{+} ]

From the question we have

ph =  -  log(2.5 \times  {10}^{ - 8} )  \\   = 7.60205

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7.6

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4 0
3 years ago
Need help with number 17 pleasee
kap26 [50]

Answer:

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