Rewards
English
全部
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
房地产
笔记本
为你精选
正在关注
我的播放列表
时长
全部
短(小于 5 分钟)
中(5-20 分钟)
长(大于 20 分钟)
日期
全部
过去 24 小时
过去一周
过去一个月
去年
清晰度
全部
低于 360p
360p 或更高
480p 或更高
720p 或更高
1080p 或更高
源
全部
Dailymotion
Vimeo
Metacafe
Hulu
VEVO
Myspace
MTV
CBS
Fox
CNN
MSN
价格
全部
免费
付费
重置
安全搜索:
中等
严格
中等(默认)
关闭
筛选器
最匹配的结果
1:00
Supersaturated Sodium Acetate! Sodium acetate solution crystallizes when a seed crystal or agitation is introduced, causing rapid exothermic crystallization as the supersaturated solution solidifies into solid sodium acetate! #Chemistry | Chemical Kim
已浏览 1984 次
4 个月之前
Facebook
Chemical Kim
[Hot Item] Wholesale Food Grade Sodium Acetate Crystal Trihydrate CAS 127-09-3 with Low Price
1 个月前
made-in-china.com
[Hot Item] Food Preservatives Sodium Diacetate Powder Crystal CAS126-96-5 Sodium Acetate
11 个月之前
made-in-china.com
1:54
Fun with Hot Ice (Sodium Acetate Crystal)
已浏览 1019 次
10 个月之前
Facebook
Genius Inventions
[Hot Item] Food Preservatives Sodium Diacetate Powder Crystal CAS126-96-5 Sodium Acetate
2 个月之前
made-in-china.com
0:28
Sodium acetate homemade #science #sciencefacts | Abhi Kumar
已浏览 659 次
6 个月之前
Facebook
Abhi Kumar
1:28
Supersaturated Sodium Acetate! #Chemistry Supersaturated sodium acetate is a solution that temporarily holds more sodium acetate dissolved in water than it normally can at a lower temperature. This is achieved by dissolving the salt in hot water and then carefully cooling the solution without disturbing it. The solution remains in this unstable state until a disturbance or seed crystal triggers rapid crystallization, where the excess sodium acetate quickly forms solid crystals and releases heat.
已浏览 1.3万 次
2 个月之前
Facebook
Chemical Kim
The seed crystal used in Czochralski processing is usually neck... | Filo
已浏览 5763 次
2023年11月15日
askfilo.com
1:01
Let’s make instant candles 😂 Super saturated sodium acetate is a highly concentrated solution of sodium acetate that is capable of holding more solute than it would normally dissolve at a lower temperature, and upon activation, it forms a crystalline solid that releases heat, making it useful in various applications, such as hand warmers and heat therapy. #Reels | Chemical Kim
已浏览 306.1万 次
2023年3月5日
Facebook
Chemical Kim
SOLVED: Instant hot packs work by crystallizing sodium acetate (NaCH3COO). The molar enthalpy of crystallization for sodium acetate is -56.7 kJ/mol. How many grams of sodium acetate are needed to warm 125.0 mL of water from 21.0°C to 35.4°C?
2022年12月7日
numerade.com
SOLVED:A seed crystal of diameter D (mm) is placed in a solution of dissolved salt, and new crystals are observed to nucleate (form) at a constant rate r (crystals/min). Experiments with seed crystals of different sizes show that the rate of nucleation varies with the seed crystal diameter as r( crystals/min )=200 D-10 D^2 (D in mm) (a) What are the units of the constants 200 and 10 ? (Assume the given equation is valid and therefore dimensionally homogeneous.) (b) Calculate the crystal nucl
2020年5月25日
numerade.com
Grow Your Own Seed Crystal: Instructions
2017年3月9日
thoughtco.com
A seed crystal of diameter D (mm) is placed in a solution of dissolved salt, and new crystals are observed to nucleate (form) at a constant rate r (crystals/min). Experiments with seed crystals of different sizes show that the rate of nucleation varies with the seed crystal diameter as r( crystals/min )=200 D-10 D^2 (D in mm) (a) What are the units of the constants 200 and 10 ? (Assume the given equation is valid and therefore dimensionally homogeneous.) (b) Calculate the crystal nucleation
2020年5月27日
numerade.com
5:23
CH15Q7 Grams of sodium acetate in a buffer
已浏览 3981 次
2022年3月15日
YouTube
Chem Lab
1:23
How to Make Hot Ice: Step by Step Guide
已浏览 11.7万 次
2022年10月21日
TikTok
burtklanken
0:36
Sodium Acetate Crystals ❄️ #chemistry #lab #crystals #grow #experiment #sodiumacetate #fyp #parati #beauty #❄️
已浏览 2.7万 次
2023年7月26日
TikTok
claraialcolado
0:38
Growing Sodium Carbonate Crystals - Science Experiment
已浏览 13.5万 次
2021年2月26日
TikTok
cassieshey
0:17
Soy Sauce under a Microscope (Salt Crystals Growing)
已浏览 1794 次
2023年2月1日
YouTube
Nomadic Nostoc
0:11
When Supersaturated Solution Meets Seed Crystal #SodiumAcetate #Chemistry #CampusLife
已浏览 5522 次
2023年8月26日
YouTube
Hans Lab 實驗室
0:18
Crystallization of sodium acetate
已浏览 1841 次
2 个月之前
YouTube
FelixChem
0:24
sodium acetate | #science #sciencefacts #shorts
已浏览 349 次
2 个月之前
YouTube
WORLD FACTS
0:15
Crystallization of Sodium acetate
已浏览 486 次
2021年2月11日
YouTube
Prof. Balaji Tutorials
2:45
The usage of Sodium Acetate Crystallization to make heat cubes
已浏览 78 次
6 个月之前
YouTube
Chemistry Projects
1:10
diagram of heating cotton seed oil and sodium hydroxide solution|beaker|tripod stand|spirit lamp
已浏览 1794 次
2022年2月19日
YouTube
a4art c4craft
0:15
Crystal nucleation
已浏览 635 次
5 个月之前
YouTube
Professor Hughes
1:08
BLACK SEED OIL: Why you need to start taking this!
已浏览 449 次
2023年10月2日
YouTube
Samuel's Overviews
0:19
Chia Seed Crystal Growing Guide
已浏览 22.1万 次
2021年11月5日
TikTok
moss._.witch
3:00
Chemical stalagmite
已浏览 6.2万 次
2008年9月12日
YouTube
ChemToddler
0:45
Supersaturated solution of sodium acetate - adding a seed crystal
已浏览 439 次
2018年4月17日
YouTube
Christopher Young
6:11
How seeds work
2015年9月25日
BBC
观看更多视频
报告不当内容
请选择下列任一选项。
无关
低俗内容
成人
儿童性侵犯
Invisible focusable element for fixing accessibility issue
反馈