Gram Silica
Gram Silica
chemistry equations?
17. The oxidation number for sulfur in K2SO3 is:
1
+3
+4
+6
18. Cr2O3 + Na2CO3 + KNO3 equation Na2CrO4 + CO2+ KNO2
What is the sum of the coefficients in the balanced equation?
13
14
15
16
19. In the complete combustion of octane with oxygen, represented by the unbalanced chemical equation, C8H18 + O2 equation CO2 + H2O, 1 gram of octane will yield what mass of water?
0.079 g
1.4 g
18 g
162 g
20. The commercial production of phosphoric acid from phosphate ores can be represented by the equation:
Ca3(PO4)2 + 3 SiO2 + 5 C + 5 O2 + 3H2O equation 3 CaSiO3 + 5 CO2 + 2 H3PO4
If 1.0 kg. each of calcium phosphate and silica (SiO2) are used with sufficient excess of carbon, oxygen, and water, what quantity of phosphoric acid can be produced?
0.31 kg
0.63 kg
1.0 kg
1.1 kg
help please!
17. The oxidation number for sulfur in K2SO3 is:
+4
—————————————
1 Cr2O3 +2 Na2CO3 + 3KNO3 –>2 Na2CrO4 +2 CO2+3 KNO2
What is the sum of the coefficients in the balanced equation?
13
————————
19. In the complete combustion of octane with oxygen, represented by the balanced chemical equation,
2 C8H18 (228grams)+ 25 O2 –> 16CO2 + 18 H2O (324g)
? g H2O = 1 gramC8H18 @ 162 g H2O / 114 g H2O
1.4 g
———————
20. The commercial production of phosphoric acid from phosphate ores can be represented by the equation:
1 Ca3(PO4)2 (310 grams)+ 3 SiO2 (180 grams)+ 5 C + 5 O2 + 3H2O –> 3 CaSiO3 + 5 CO2 + 2 H3PO4 (196 grams)
If 1.0 kg. each of calcium phosphate and silica (SiO2) are used means that the reaction is limited by the Ca3(PO4)2 which required more than twice as much of it as you add SiO2
? kg H3PO4 = 1.0 kg Ca3(PO4) @ 196 kg H3PO4 / 310 kg Ca3(PO4)2
0.63 kg
Gram Silica
Home Remedies for Hair Growth – Stop Hair Fall Naturally
It is perfectly normal for both men and women to lose hair, but when you lose more than 150 hairs a day, you can start worrying. Hair loss has many causes and genetics seems to be the most common one. Many people only notice that they have a problem when it’s highly visible. Fortunately, if you find yourself in this case, there is no need to panic because there are many home remedies for hair growth. A beautiful hair starts with a healthy scalp; this is why the most effective home remedies for hair growth involve massaging your scalp with essential oils. Besides nourishing your scalp with the substances contained by the oils, by massaging, you also improve circulation and accelerate hair growth.
Coconut oil and almond oil are effective in stopping hair loss and in stimulating growth. Lavender oil, if used at least three times a week, increases hair growth significantly. You can also mix various oils together and massage your scalp with the product that resulted. Make sure to also add some olive oil because this will Make Your hair grow healthy and look shinny.
Other home remedies for hair growth include –
1. A mixture made of olive oil, honey and cinnamon powder, applied before washing your hair and kept on the scalp for fifteen minutes.
2. Alma juice and lime juice used for washing your hair or for incorporating them in your regular shampoo.
3. Henna (a renowned Indian remedy) – 100 grams of henna need to be boiled together with 250 grams of mustard oil.
4. Castor oil if it is massaged on the scalp regularly.
5. Juice of green coriander leaves applied on the scalp.
6. Silica supplements.
7. Fresh juice made of spinach and lettuce and consumed on a daily basis.
8. Lime seeds and black pepper- grind them in order to obtain a paste and use it daily on your scalp; keep it for at least 15 minutes.
9. A paste made of red gram and pigeon pea – mostly used in baldness, applied on the bald areas.
Most home remedies for hair growth involve applying oils or a paste on your head. Whatever you are applying, make sure to stay like that for at least fifteen minutes. If you have time, you can keep the oil or the paste even longer. In addition to the home remedies for hair growth, make sure you also have a preventive attitude towards the possibility of losing your hair. Avoid products that contain too many chemical substances and watch your diet. Consume calcium and Vitamin B daily and give up smoking and alcohol.
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Good @ Physical Science?? Points!!!!!?
If you can answer ANY of ALL of these PLEASE DO SO!! I am overwhelmed with homework class && some of these questions are giving me trouble along with keeping me from turning my paper in at the correct time. THANK YOU SO MUCH!!!!
Which would be found near the mouth of a river and which further out, course grain sand or fine grain silt?? ALSO—
If I weigh a mineral in air and it weighs 100 grams and then I weigh it in water and it weighs 50 grams, what is its specific gravity??
Which would melt first?? A mineral with 20% silica or one with 30% silica??
with the first one, you would find the course sand further out and the fine silt closer in.
dunno with the second one sorry
with the last one i would say it would be the 30% silica compound that would melt first.
hope it helped
Make Sodium Silicate
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