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Anestetic [448]
3 years ago
5

Si2C19 What is this compound

Chemistry
1 answer:
lutik1710 [3]3 years ago
7 0

Answer:

BROMOTRIPHENYLSILANE

Explanation:

<h2>MARK ME AS BRAINLIST</h2>

PLZ FOLLOW ME

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What is the formula for the ionic compound formed between calcium and sulfur?
zheka24 [161]

Answer:

CaS

Explanation:

calcium is Ca2+ and sulfur is S2- because the charges are equal you only need one of  each atom, so the answer is CaS

8 0
3 years ago
2. Balance the equation below, and answer the following question: What volume of chlorine gas, measured at STP, is needed to com
Juliette [100K]
Balanced equation: 2Na(s) + Cl₂(g) ---> 2NaCl(s)

when we have STP conditions, we can use this conversion: 1 mol = 22.4 L

first, we have to convert grams to molecules using the molar mass, and then use mole to mole ratio from the balanced equation. 

molar mass of Na= 23.0 g/mol
 ratio: 2 mol Na= 1 mol Cl₂ (based on coefficients of balanced equation)

calculations:

6.25 g Na ( \frac{1 mol Na}{23.0 g} ) ( \frac{1 mol Cl_2}{2 mol Na} ) ( \frac{22.4 L}{1 mol} )= 3.04 L
8 0
3 years ago
Pls help and i will mark brainliest
myrzilka [38]

Answer:

No. 3 lithium

Explain that lithium has 3 protons and 3 electrons. There are 2 electrons on the first energy level and 1 electron on the second

No. 4 Hydrogen (H) and helium (He) have a valence shell containing one and two electrons respectively. They make up the first period (row) of the periodic table. Their valence electron/s are in the first energy level (n=1) , as is denoted by 1s1 and 1s2 .

<em>That</em><em>'</em><em>s</em><em> </em><em>all</em><em> </em><em>i</em><em> </em><em>dont</em><em> </em><em>know</em><em> </em><em>if</em><em> </em><em>this</em><em> </em><em>is</em><em> </em><em>right</em><em> </em><em>though</em><em>.</em><em> </em>

6 0
3 years ago
Read 2 more answers
All of the following are examples of minerals except __________.
snow_tiger [21]
The answer is D.timber good luck 

3 0
3 years ago
Read 2 more answers
Calculate the formula mass of magnesium chloride, MgCl2?
viktelen [127]
Mg = 24.3
Cl = 35.5

24.3 + 35.5 x 2 = 95.3 ~ 95.21 ( all periodic tabes have different accuracies)

Let me know if you have any questions and please give brainliest if you like my answer:)
8 0
3 years ago
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