Saat&nbsp;sedang stress atau dalam situasi bahaya terdapat hormon yang berperan dalam proses tersebut. Hormon atau senyawa kimia yang dimaksud adalah .&hellip;

<img align="middle" alt="begin mathsize 14px style straight C subscript 12 straight H subscript 22 straight O subscript 11 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«msub»«mi mathvariant=¨normal¨»C«/mi»«mn»12«/mn»«/msub»«msub»«mi mathvariant=¨normal¨»H«/mi»«mn»22«/mn»«/msub»«msub»«mi mathvariant=¨normal¨»O«/mi»«mn»11«/mn»«/msub»«/mrow»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEMAAAAPCAYAAAC/UHJkAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAKIPF7gAAAAWxJREFUeNpjYEAFHkC8AYg/AfFrIJ4GxNIM5IP/ZMoRCzKA+DgQfwPio0CcxUAlMBOIJwGxLJQvCsTxQLxtEAYGE9RdPUAsDhUD0V1QcSZKAiIRiOczUB/QKjAqoakWV6RWU+Lok0CsN4QC4wIQa+GQA4lfosTRPyhNWng8jA+TC34RyELfKA0MhiGUMmgaGIeB2HiIZRMdHHIg8XOUODoSiFcRoc4SiPdjEc+CVsePgdiHjMDApR+XeAm0oMRVgFYS4WZc4mAwBYgXA7EGlM8GdcBeJDV7cXiwC6reFoifkhEYuPTjEsdWtUoCcR8Q7wBiFiLcvJdQ6vQC4k3QMuQH1EIXEpI3C1r5Q2o2YcFRfuESB6WcM9AyBJTV00jMkv9pWQ7kQGOHXIBLP6Xm0j0wHKGpioVMc3Hpp9RcugeGGhBvgeZvcgAu/ZSaOyCBsR/qcHIBLv2UmkvTwMDVeqS0ZYlLPzVarMS4GQwAZjGLC4qhfpYAAAEFdEVYdE1hdGhNTAA8bWF0aCB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMTk5OC9NYXRoL01hdGhNTCI+PG1zdHlsZSBtYXRoc2l6ZT0iMTRweCI+PG1zdWI+PG1pIG1hdGh2YXJpYW50PSJub3JtYWwiPkM8L21pPjxtbj4xMjwvbW4+PC9tc3ViPjxtc3ViPjxtaSBtYXRodmFyaWFudD0ibm9ybWFsIj5IPC9taT48bW4+MjI8L21uPjwvbXN1Yj48bXN1Yj48bWkgbWF0aHZhcmlhbnQ9Im5vcm1hbCI+TzwvbWk+PG1uPjExPC9tbj48L21zdWI+PC9tc3R5bGU+PC9tYXRoPoSIAdwAAAAASUVORK5CYII=" style="max-width: none; vertical-align: -5px;" width="67" />&nbsp;&nbsp;&nbsp; &nbsp;

<img align="middle" alt="begin mathsize 14px style straight C subscript 6 straight H subscript 12 straight O subscript 6 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«msub»«mi mathvariant=¨normal¨»C«/mi»«mn»6«/mn»«/msub»«msub»«mi mathvariant=¨normal¨»H«/mi»«mn»12«/mn»«/msub»«msub»«mi mathvariant=¨normal¨»O«/mi»«mn»6«/mn»«/msub»«/mrow»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -5px;" width="55" />&nbsp;&nbsp;&nbsp;&nbsp;

<img align="middle" alt="begin mathsize 14px style straight C subscript 3 straight H subscript 6 straight O subscript 3 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«msub»«mi mathvariant=¨normal¨»C«/mi»«mn»3«/mn»«/msub»«msub»«mi mathvariant=¨normal¨»H«/mi»«mn»6«/mn»«/msub»«msub»«mi mathvariant=¨normal¨»O«/mi»«mn»3«/mn»«/msub»«/mrow»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -5px;" width="49" />&nbsp;&nbsp;&nbsp;&nbsp;

<img align="middle" alt="begin mathsize 14px style straight C subscript 4 straight H subscript 8 straight O subscript 4 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«msub»«mi mathvariant=¨normal¨»C«/mi»«mn»4«/mn»«/msub»«msub»«mi mathvariant=¨normal¨»H«/mi»«mn»8«/mn»«/msub»«msub»«mi mathvariant=¨normal¨»O«/mi»«mn»4«/mn»«/msub»«/mrow»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -5px;" width="49" />&nbsp;&nbsp;&nbsp;&nbsp;

Tumbuhan tersusun atas molekul-molekul, misalnya ketika mengalami proses fotosintesis yang memerlukan karbondioksida dan air lalu menghasilkan glukosa. Rumus molekul dari senyawa glukosa adalah &hellip;.

<img align="middle" alt="begin mathsize 14px style CO subscript 2 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«msub»«mi»CO«/mi»«mn»2«/mn»«/msub»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -5px;" width="27" />&nbsp;&nbsp;&nbsp;&nbsp;

<img align="middle" alt="begin mathsize 14px style Cl subscript 2 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«msub»«mi»Cl«/mi»«mn»2«/mn»«/msub»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -5px;" width="20" />&nbsp;&nbsp;&nbsp;&nbsp;

<img align="middle" alt="begin mathsize 14px style straight H subscript 2 straight O end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«msub»«mi mathvariant=¨normal¨»H«/mi»«mn»2«/mn»«/msub»«mi mathvariant=¨normal¨»O«/mi»«/mrow»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -5px;" width="27" />&nbsp;&nbsp;&nbsp;&nbsp;

<img align="middle" alt="begin mathsize 14px style straight H subscript 2 SO subscript 4 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«msub»«mi mathvariant=¨normal¨»H«/mi»«mn»2«/mn»«/msub»«msub»«mi»SO«/mi»«mn»4«/mn»«/msub»«/mrow»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -5px;" width="41" />&nbsp;&nbsp;&nbsp;&nbsp;

Berikut ini yang merupakan molekul unsur adalah ....

Suatu ion&nbsp;<img align="middle" alt="begin mathsize 12px style L to the power of 2 plus sign end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨12px¨»«msup»«mi mathvariant=¨normal¨»L«/mi»«mrow»«mn»2«/mn»«mo»+«/mo»«/mrow»«/msup»«/mstyle»«/math»" data-latex="\style{font-size:12px}{\mathrm L^{2+}}" height="13" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -1px;" width="19" />&nbsp;mempunyai 54 elektron dan 81 neutron. Jumlah proton, elektron, dan nomor massa dari atom L secara berturut-turut, yaitu&nbsp;....

<img align="middle" alt="begin mathsize 14px style straight X presubscript 55 presuperscript 78 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi mathvariant=¨normal¨»X«/mi»«mprescripts/»«mn»55«/mn»«mn»78«/mn»«/mmultiscripts»«/mstyle»«/math»" height="20" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="22" />&nbsp;&nbsp;&nbsp;&nbsp;

<img align="middle" alt="begin mathsize 14px style straight X presubscript 55 presuperscript 133 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi mathvariant=¨normal¨»X«/mi»«mprescripts/»«mn»55«/mn»«mn»133«/mn»«/mmultiscripts»«/mstyle»«/math»" height="20" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAUCAYAAACeXl35AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAOJ5y/mQAAAQtJREFUeNpjYIAASyDez4AJ/gPxHyA+DMT2RIgTDfZCDcEF1ID4AwniRAF8FroB8RoSxCmyECR+AYhFiRSnig/jgfggHnEWIN4ExDo49JtCo42NWAtB4BcBcT4g3gLE4mjykkB8HIiFSfXhJSLERaFxygHlcwHxbiBWwmbZfyyWwsSuQYOFkDgD1PC5UPZyILZloAMAOeIoEEcz0An4QIPagx6WGQPxTCh7DZRPMyAPzR4sUD4PNDvIkpI3sSUobOKC0PJYFEu2OAiVp6j0QQYgH20DYgM8wbwNPeNTYiHVAMjgH9B4kSZCnCoAFPHN0HxFjDjVwC8SxSkCxJalVIlDkA9OArEWEeIEAQBPB1Q8eSTXuwAAAMN0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bXN0eWxlIG1hdGhzaXplPSIxNHB4Ij48bW11bHRpc2NyaXB0cz48bWkgbWF0aHZhcmlhbnQ9Im5vcm1hbCI+WDwvbWk+PG1wcmVzY3JpcHRzLz48bW4+NTU8L21uPjxtbj4xMzM8L21uPjwvbW11bHRpc2NyaXB0cz48L21zdHlsZT48L21hdGg+Gjmq5wAAAABJRU5ErkJggg==" style="max-width: none; vertical-align: -6px;" width="28" />&nbsp;&nbsp;&nbsp;&nbsp;

<img align="middle" alt="begin mathsize 14px style straight X presubscript 133 presuperscript 55 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi mathvariant=¨normal¨»X«/mi»«mprescripts/»«mn»133«/mn»«mn»55«/mn»«/mmultiscripts»«/mstyle»«/math»" height="20" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="28" />&nbsp;&nbsp;&nbsp;&nbsp;

<img align="middle" alt="begin mathsize 14px style straight X presubscript 78 presuperscript 55 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi mathvariant=¨normal¨»X«/mi»«mprescripts/»«mn»78«/mn»«mn»55«/mn»«/mmultiscripts»«/mstyle»«/math»" height="20" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAAUCAYAAACJfM0wAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAOJ5y/mQAAASNJREFUeNpjYICA/2iYgYA40eA/ieKDw+AfQLwJiKWJECcJ8ABxMxAfxSPOArVEB4cZpkC8F4jZsEn+wqEJJs4HxFuAWBxNXhKIjwOxMDbN8UB8iQhxUSBeA8QcUD4XEO8GYiVsYQxy0Ukg1iJCnAFqyFwoezkQ2zJQEZhCwz6agcrABxpEHtQ01BiIZ0LZa6B8ioE8NNmxICVJUDKTxRZ52MqEUCB+DsQfgDgIKiYIxPuhKQM9uR2EymMAUExvQOKDDFQBYjUgfgx14TYgNsATPNuwZZClUINg4D405pWg6ZQsoIcUGchB8QXqdWFyDcaWcxYDsSUQFwBxPbkJfQsW8R842ESD+UAcjkX8OTSr2kIjj2TwHFpqMWAJ49dQeZJyFwAarko6gzNUWQAAAMJ0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bXN0eWxlIG1hdGhzaXplPSIxNHB4Ij48bW11bHRpc2NyaXB0cz48bWkgbWF0aHZhcmlhbnQ9Im5vcm1hbCI+WDwvbWk+PG1wcmVzY3JpcHRzLz48bW4+Nzg8L21uPjxtbj41NTwvbW4+PC9tbXVsdGlzY3JpcHRzPjwvbXN0eWxlPjwvbWF0aD5kngb1AAAAAElFTkSuQmCC" style="max-width: none; vertical-align: -6px;" width="22" />&nbsp;&nbsp;&nbsp;&nbsp;

Notasi atom dari unsur X yang memiliki jumlah neutron = 78 dan elektron = 55 adalah ....<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" data-latex="\;" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAGCAYAAADkOT91AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKAHAAAAZgABtw7B6wAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none;" />&nbsp;

Keratin adalah protein yang mempunyai struktur berserat. Keratin terbagi menjadi dua jenis, yaitu <m:r><m:rpr><m:scr m:val="roman"><m:sty m:val="p"></m:sty></m:scr></m:rpr>&alpha;</m:r><m:r><m:rpr><m:scr m:val="roman"><m:sty m:val="p"></m:sty></m:scr></m:rpr>-</m:r> keratin dan <m:r><m:rpr><m:scr m:val="roman"><m:sty m:val="p"></m:sty></m:scr></m:rpr>&beta;-</m:r> keratin. Contoh <m:r><m:rpr><m:scr m:val="roman"><m:sty m:val="p"></m:sty></m:scr></m:rpr>&alpha;-</m:r> keratin pada tubuh hewan terdapat pada &hellip;.

Pada tumbuhan yang memiliki zat hijau daun terjadi proses fotosintesis. Fotosintesis memerlukan karbon dioksida, air, cahaya, dan klorofil. Karbon dioksida dikategorikan sebagai &hellip;.

<img align="middle" alt="begin mathsize 14px style H subscript 2 O end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mrow»«msub»«mi mathvariant=¨normal¨»H«/mi»«mn»2«/mn»«/msub»«mi mathvariant=¨normal¨»O«/mi»«/mrow»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -5px;" width="27" />&nbsp;

<img align="middle" alt="begin mathsize 14px style straight H subscript 2 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«msub»«mi mathvariant=¨normal¨»H«/mi»«mn»2«/mn»«/msub»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAPCAYAAADtc08vAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAKIPF7gAAAAFZJREFUeNpjYICA/wy4AT45ohQNIQPw4WEUBllA/AmIHwOxDzkGdAExGxDbAvFTSrzAAsQ/GCgAOUDcR65mRyDeBHUFyUANiLdAw4EssB9qCNkAI4UCAOUDJtJ39UkyAAAAlnRFWHRNYXRoTUwAPG1hdGggeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTgvTWF0aC9NYXRoTUwiPjxtc3R5bGUgbWF0aHNpemU9IjE0cHgiPjxtc3ViPjxtaSBtYXRodmFyaWFudD0ibm9ybWFsIj5IPC9taT48bW4+MjwvbW4+PC9tc3ViPjwvbXN0eWxlPjwvbWF0aD4W90+TAAAAAElFTkSuQmCC" style="max-width: none; vertical-align: -5px;" width="16" />&nbsp;

<img align="middle" alt="begin mathsize 14px style CO subscript 2 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«msub»«mi»CO«/mi»«mn»2«/mn»«/msub»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -5px;" width="27" />&nbsp;

<img align="middle" alt="begin mathsize 14px style straight C subscript 2 straight O end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«msub»«mi mathvariant=¨normal¨»C«/mi»«mn»2«/mn»«/msub»«mi mathvariant=¨normal¨»O«/mi»«/mrow»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -5px;" width="27" />&nbsp;

Molekul senyawa terbentuk dari dua atau lebih atom yang berbeda. Rumus molekul dari air adalah &hellip;.

54, 54 dan 135

Ion <img align="middle" alt="begin mathsize 14px style X to the power of 2 minus sign end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«msup»«mi mathvariant=¨normal¨»X«/mi»«mrow»«mn»2«/mn»«mo»-«/mo»«/mrow»«/msup»«/mstyle»«/math»" data-latex="\style{font-size:14px}{\mathrm X^{2-}}" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -1px;" width="24" />&nbsp;mempunyai 54 elektron dan 81 neutron. Jumlah proton, jumlah elektron, dan nomor massa dari atom X beruturut-turut, yaitu&nbsp;&hellip;.

Sebuah atom X memiliki notasi <m:ctrlpr></m:ctrlpr> <m:r><m:rpr><m:scr m:val="roman"><m:sty m:val="p"></m:sty></m:scr></m:rpr></m:r><img align="middle" alt="begin mathsize 14px style straight X subscript 55 superscript 133 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«msubsup»«mi mathvariant=¨normal¨»X«/mi»«mn»55«/mn»«mn»133«/mn»«/msubsup»«/mstyle»«/math»" data-latex="\style{font-size:14px}{\mathrm X_{55}^{133}}" height="20" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="28" />. Jumlah neutron dari atom tersebut adalah &hellip;.